Siemens S7-1200 telecontrol User guide

S7-1200 Programmable controller

___________________

SIMATIC

S7-1200 Programmable controller

System Manual

03/2014

A5E02486680

-AG

Preface

Product overview

STEP 7 programming

software

Installation

PLC concepts

Device configuration

Programming concepts

Basic instructions

Extended instructions

Technology instructions

Communication

Web server

Communication processor

and Modbus TCP

Teleservice communication

(SMTP email)

Online and diagnostic tools

SM 1278 4xIO-Link Master

Technical specifications

Calculating a power budget

Order numbers

Exchanging a V3.0 CPU for

a V4.0 CPU

Siemens AG

Industry Sector

Postfach 48 48

90026 NÜRNBERG

GERMANY

Order number: 6ES7298-8FA30-8BH0

Ⓟ

12/2013 Technical data subject to change

Legal information

Warning notice system

This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent

damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert

symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are

graded according to the degree of danger.

DANGER

indicates that death or severe personal injury will result if proper precautions are not taken.

WARNING

indicates that death or severe personal injury may result if proper precautions are not taken.

CAUTION

indicates that minor personal injury can result if proper precautions are not taken.

NOTICE

indicates that property damage can result if proper precautions are not taken.

If more than one degree of danger is present, the warning notice representing the highest degree of danger will

be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to

property damage.

Qualified Personnel

The product/system described in this documentation may be operated only by

personnel qualified

for the specific

task in accordance with the relevant documentation, in particular its warning notices and safety instructions.

Qualified personnel are those who, based on their training and experience, are capable of identifying risks and

avoiding potential hazards when working with these products/systems.

Proper use of Siemens products

Note the following:

WARNING

Siemens products may only be used for the applications described in the catalog and in the relevant technical

documentation. If products and components from other manufacturers are used, these must be recommended

or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and

maintenance are required to ensure that the products operate safely and without any problems. The permissible

ambient conditions must be complied with. The information in the relevant documentation must be observed.

Trademarks

All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication

may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.

Disclaimer of Liability

We have reviewed the contents of this publication to ensure consistency with the hardware and software

described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the

information in this publication is reviewed regularly and any necessary corrections are included in subsequent

editions.

S7-1200 Programmable controller

System Manual, 03/2014, A5E02486680-AG 3

Preface

Purpose of the manual

The S7-1200 series is a line of programmable logic controllers (PLCs) that can control a

variety of automation applications. Compact design, low cost, and a powerful instruction set

make the S7-1200 a perfect solution for controlling a wide variety of applications. The S7-

1200 models and the Windows-based STEP 7 programming tool (Page 35) give you the

flexibility you need to solve your automation problems.

This manual provides information about installing and programming the S7-1200 PLCs and

is designed for engineers, programmers, installers, and electricians who have a general

knowledge of programmable logic controllers.

Required basic knowledge

To understand this manual, it is necessary to have a general knowledge of automation and

programmable logic controllers.

Scope of the manual

This manual describes the following products:

●STEP 7 V13 Basic and Professional (Page 35)

●S7-1200 CPU firmware release V4.0

For a complete list of the S7-1200 products described in this manual, refer to the technical

specifications (Page 829).

Certification, CE label, C-Tick, and other standards

Refer to the technical specifications (Page 829) for more information.

Service and support

In addition to our documentation, Siemens offers technical expertise on the Internet and on

the customer support web site (http://www.siemens.com/automation/).

Contact your Siemens distributor or sales office for assistance in answering any technical

questions, for training, or for ordering S7 products. Because your sales representatives are

technically trained and have the most specific knowledge about your operations, process

and industry, as well as about the individual Siemens products that you are using, they can

provide the fastest and most efficient answers to any problems you might encounter.

Preface

S7-1200 Programmable controller

4System Manual, 03/2014, A5E02486680-AG

Documentation and information

S7-1200 and STEP 7 provide a variety of documentation and other resources for finding the

technical information that you require.

●The S7-1200 system manual provides specific information about the operation,

programming, and the specifications for the complete S7-1200 product family. In addition

to the system manual, the S7-1200 Easy Book provides a more general overview to the

capabilities of the S7-1200 family.

Both the system manual and the Easy Book are available as electronic (PDF) manuals.

The electronic manuals can be downloaded from the customer support web site and can

also be found on the documentation disk that ships with every S7-1200 CPU.

●The online STEP 7 information system provides immediate access to the conceptual

information and specific instructions that describe the operation and functionality of the

programming package and basic operation of SIMATIC CPUs.

●My Documentation Manager accesses the electronic (PDF) versions of the SIMATIC

documentation set, including the system manual, the Easy Book, and the STEP 7

information system. With My Documentation Manager, you can drag and drop topics from

various documents to create your own custom manual.

The customer support entry portal (http://support.automation.siemens.com) provides a

link to My Documentation Manager under mySupport.

●The customer support web site also provides podcasts, FAQs, and other helpful

documents for S7-1200 and STEP 7. The podcasts utilize short educational video

presentations that focus on specific features or scenarios in order to demonstrate the

interactions, convenience, and efficiency provided by STEP 7. Visit the following web

sites to access the collection of podcasts:

–STEP 7 Basic web page (http://www.automation.siemens.com/mcms/simatic-

controller-software/en/step7/step7-basic/Pages/Default.aspx)

–STEP 7 Professional web page (http://www.automation.siemens.com/mcms/simatic-

controller-software/en/step7/step7-professional/Pages/Default.aspx)

●You can also follow or join product discussions on the Service & Support technical forum

(https://www.automation.siemens.com/WW/forum/guests/Conferences.aspx?Language=e

n&siteid=csius&treeLang=en&groupid=4000002&extranet=standard&viewreg=WW&nodei

d0=34612486). These forums allow you to interact with various product experts.

–Forum for S7-1200

(https://www.automation.siemens.com/WW/forum/guests/Conference.aspx?SortField=

LastPostDate&SortOrder=Descending&ForumID=258&Language=en&onlyInternet=Fa

lse)

–Forum for STEP 7 Basic

(https://www.automation.siemens.com/WW/forum/guests/Conference.aspx?SortField=

LastPostDate&SortOrder=Descending&ForumID=265&Language=en&onlyInternet=Fa

lse)

Preface

S7-1200 Programmable controller

System Manual, 03/2014, A5E02486680-AG 5

Security information

Siemens provides products and solutions with industrial security functions that support the

secure operation of plants, solutions, machines, equipment and/or networks. They are

important components in a holistic industrial security concept. With this in mind, Siemens’

products and solutions undergo continuous development. Siemens recommends strongly

that you regularly check for product updates.

For the secure operation of Siemens products and solutions, it is necessary to take suitable

preventive action (e.g. cell protection concept) and integrate each component into a holistic,

state-of-the-art industrial security concept. Third-party products that may be in use should

also be considered. You can find more information about industrial security on the Internet

(http://www.siemens.com/industrialsecurity).

To stay informed about product updates as they occur, sign up for a product-specific

newsletter. You can find more information on the Internet

(http://support.automation.siemens.com).

Preface

S7-1200 Programmable controller

6System Manual, 03/2014, A5E02486680-AG

S7-1200 Programmable controller

System Manual, 03/2014, A5E02486680-AG 7

Table of contents

Preface ................................................................................................................................................... 3

1 Product overview .................................................................................................................................. 23

1.1 Introducing the S7-1200 PLC.......................................................................................................23

1.2 Expansion capability of the CPU..................................................................................................26

1.3 S7-1200 modules.........................................................................................................................29

1.4 New features ................................................................................................................................30

1.5 Basic HMI panels .........................................................................................................................32

2 STEP 7 programming software ............................................................................................................. 35

2.1 System requirements ...................................................................................................................36

2.2 Different views to make the work easier ......................................................................................37

2.3 Easy-to-use tools .........................................................................................................................38

2.3.1 Inserting instructions into your user program...............................................................................38

2.3.2 Accessing instructions from the "Favorites" toolbar.....................................................................38

2.3.3 Creating a complex equation with a simple instruction................................................................39

2.3.4 Adding inputs or outputs to a LAD or FBD instruction .................................................................41

2.3.5 Expandable instructions...............................................................................................................42

2.3.6 Selecting a version for an instruction ...........................................................................................42

2.3.7 Modifying the appearance and configuration of STEP 7 .............................................................43

2.3.8 Dragging and dropping between editors......................................................................................43

2.3.9 Changing the operating mode of the CPU...................................................................................44

2.3.10 Changing the call type for a DB ...................................................................................................45

2.3.11 Temporarily disconnecting devices from a network.....................................................................46

2.3.12 Virtual unplugging of devices from the configuration...................................................................47

3 Installation ............................................................................................................................................ 49

3.1 Guidelines for installing S7-1200 devices....................................................................................49

3.2 Power budget ...............................................................................................................................51

3.3 Installation and removal procedures ............................................................................................53

3.3.1 Mounting dimensions for the S7-1200 devices............................................................................53

3.3.2 Installing and removing the CPU .................................................................................................56

3.3.3 Installing and removing an SB, CB, or BB ...................................................................................58

3.3.4 Installing and removing an SM.....................................................................................................60

3.3.5 Installing and removing a CM or CP ............................................................................................62

3.3.6 Removing and reinstalling the S7-1200 terminal block connector...............................................63

3.3.7 Installing and removing the expansion cable...............................................................................64

3.3.8 TS (TeleService) adapter.............................................................................................................66

3.3.8.1 Connecting the TeleService adapter............................................................................................66

3.3.8.2 Installing the SIM card .................................................................................................................67

3.3.8.3 Installing the TS adapter unit on a DIN rail ..................................................................................69

3.3.8.4 Installing the TS adapter on a panel ............................................................................................69

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3.4 Wiring guidelines......................................................................................................................... 70

4 PLC concepts ....................................................................................................................................... 77

4.1 Execution of the user program.................................................................................................... 77

4.1.1 Operating modes of the CPU...................................................................................................... 81

4.1.2 Processing the scan cycle in RUN mode.................................................................................... 85

4.1.3 Organization blocks (OBs) .......................................................................................................... 85

4.1.3.1 Program cycle OB ....................................................................................................................... 86

4.1.3.2 Startup OB................................................................................................................................... 86

4.1.3.3 Time delay interrupt OB .............................................................................................................. 87

4.1.3.4 Cyclic interrupt OB ...................................................................................................................... 87

4.1.3.5 Hardware interrupt OB ................................................................................................................ 87

4.1.3.6 Time error interrupt OB ............................................................................................................... 88

4.1.3.7 Diagnostic error interrupt OB ...................................................................................................... 89

4.1.3.8 Pull or plug of modules OB ......................................................................................................... 91

4.1.3.9 Rack or station failure OB ........................................................................................................... 92

4.1.3.10 Time of day OB ........................................................................................................................... 92

4.1.3.11 Status OB.................................................................................................................................... 93

4.1.3.12 Update OB................................................................................................................................... 93

4.1.3.13 Profile OB.................................................................................................................................... 94

4.1.3.14 Event execution priorities and queuing ....................................................................................... 94

4.1.4 Monitoring and configuring the cycle time................................................................................... 97

4.1.5 CPU memory............................................................................................................................... 99

4.1.5.1 System and clock memory ........................................................................................................ 101

4.1.6 Diagnostics buffer ..................................................................................................................... 103

4.1.7 Time of day clock ...................................................................................................................... 104

4.1.8 Configuring the outputs on a RUN-to-STOP transition ............................................................. 104

4.2 Data storage, memory areas, I/O and addressing .................................................................... 105

4.2.1 Accessing the data of the S7-1200 ........................................................................................... 105

4.3 Processing of analog values ..................................................................................................... 110

4.4 Data types ................................................................................................................................. 110

4.4.1 Bool, Byte, Word, and DWord data types ................................................................................. 111

4.4.2 Integer data types ..................................................................................................................... 112

4.4.3 Floating-point real data types.................................................................................................... 112

4.4.4 Time and Date data types ......................................................................................................... 113

4.4.5 Character and String data types ............................................................................................... 114

4.4.6 Array data type.......................................................................................................................... 116

4.4.7 Data structure data type............................................................................................................ 117

4.4.8 PLC data type ........................................................................................................................... 117

4.4.9 Pointer data types ..................................................................................................................... 118

4.4.9.1 "Pointer" pointer data type ........................................................................................................ 118

4.4.9.2 "Any" pointer data type.............................................................................................................. 119

4.4.9.3 "Variant" pointer data type ........................................................................................................ 120

4.4.10 Accessing a "slice" of a tagged data type ................................................................................. 121

4.4.11 Accessing a tag with an AT overlay .......................................................................................... 122

4.5 Using a memory card ................................................................................................................ 124

4.5.1 Inserting a memory card in the CPU......................................................................................... 125

4.5.2 Configuring the startup parameter of the CPU before copying the project to the memory

card ........................................................................................................................................... 127

4.5.3 Transfer card............................................................................................................................. 127

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4.5.4 Program card .............................................................................................................................130

4.5.5 Firmware update ........................................................................................................................133

4.6 Recovery from a lost password..................................................................................................136

5 Device configuration............................................................................................................................ 137

5.1 Inserting a CPU..........................................................................................................................138

5.2 Detecting the configuration for an unspecified CPU ..................................................................140

5.3 Adding modules to the configuration .........................................................................................141

5.4 Changing a device .....................................................................................................................142

5.5 Configuring the operation of the CPU ........................................................................................142

5.5.1 Overview ....................................................................................................................................142

5.5.2 Configuring digital input filter times ............................................................................................144

5.5.3 Pulse catch.................................................................................................................................146

5.6 Configuring the parameters of the modules...............................................................................147

5.7 Configuring the CPU for communication ...................................................................................149

5.7.1 Creating a network connection ..................................................................................................149

5.7.2 Configuring the Local/Partner connection path..........................................................................150

5.7.3 Parameters for the PROFINET connection ...............................................................................153

5.7.4 Assigning Internet Protocol (IP) addresses ...............................................................................155

5.7.4.1 Assigning IP addresses to programming and network devices .................................................155

5.7.4.2 Checking the IP address of your programming device..............................................................157

5.7.4.3 Assigning an IP address to a CPU online..................................................................................158

5.7.4.4 Configuring an IP address for a CPU in your project.................................................................159

5.7.5 Testing the PROFINET network ................................................................................................162

5.7.6 Locating the Ethernet (MAC) address on the CPU....................................................................163

5.7.7 Configuring Network Time Protocol synchronization.................................................................165

5.7.8 PROFINET device start-up time, naming, and address assignment .........................................166

6 Programming concepts ....................................................................................................................... 169

6.1 Guidelines for designing a PLC system.....................................................................................169

6.2 Structuring your user program ...................................................................................................170

6.3 Using blocks to structure your program .....................................................................................172

6.3.1 Organization block (OB).............................................................................................................172

6.3.2 Function (FC) .............................................................................................................................174

6.3.3 Function block (FB)....................................................................................................................175

6.3.4 Data block (DB)..........................................................................................................................176

6.3.5 Creating reusable code blocks...................................................................................................177

6.4 Understanding data consistency................................................................................................178

6.5 Programming language..............................................................................................................179

6.5.1 Ladder logic (LAD) .....................................................................................................................180

6.5.2 Function Block Diagram (FBD) ..................................................................................................181

6.5.3 SCL ............................................................................................................................................181

6.5.4 EN and ENO for LAD, FBD and SCL.........................................................................................188

6.6 Protection ...................................................................................................................................190

6.6.1 Access protection for the CPU...................................................................................................190

6.6.2 Know-how protection .................................................................................................................193

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6.6.3 Copy protection ......................................................................................................................... 195

6.7 Downloading the elements of your program ............................................................................. 196

6.8 Uploading from the CPU ........................................................................................................... 197

6.8.1 Copying elements of the project ............................................................................................... 197

6.8.2 Using the compare function ...................................................................................................... 198

6.9 Debugging and testing the program.......................................................................................... 198

6.9.1 Monitor and modify data in the CPU ......................................................................................... 198

6.9.2 Watch tables and force tables................................................................................................... 199

6.9.3 Cross reference to show usage ................................................................................................ 199

6.9.4 Call structure to examine the calling hierarchy ......................................................................... 201

7 Basic instructions.................................................................................................................................203

7.1 Bit logic operations.................................................................................................................... 203

7.1.1 Bit logic instructions .................................................................................................................. 203

7.1.2 Set and reset instructions.......................................................................................................... 206

7.1.3 Positive and negative edge instructions.................................................................................... 209

7.2 Timer operations ....................................................................................................................... 212

7.3 Counter operations.................................................................................................................... 220

7.4 Comparator operations ............................................................................................................. 226

7.4.1 Compare values instructions..................................................................................................... 226

7.4.2 IN_Range (Value within range) and OUT_Range (Value outside range) instructions .............. 227

7.4.3 OK (Check validity) and NOT_OK (Check invalidity) instructions............................................. 228

7.5 Math functions ........................................................................................................................... 229

7.5.1 CALCULATE (Calculate) instruction ......................................................................................... 229

7.5.2 Add, subtract, multiply and divide instructions .......................................................................... 230

7.5.3 MOD (return remainder of division) instruction ......................................................................... 231

7.5.4 NEG (Create twos complement) instruction.............................................................................. 232

7.5.5 INC (Increment) and DEC (Decrement) instructions ................................................................ 232

7.5.6 ABS (Form absolute value) instruction ..................................................................................... 233

7.5.7 MIN (Get minimum) and MAX (Get maximum) instructions...................................................... 234

7.5.8 LIMIT (Set limit value) instruction.............................................................................................. 235

7.5.9 Exponent, logarithm, and trigonometry instructions.................................................................. 236

7.6 Move operations........................................................................................................................ 238

7.6.1 MOVE (Move value), MOVE_BLK (Move block), and UMOVE_BLK (Move block

uninterrruptible) instructions...................................................................................................... 238

7.6.2 FieldRead (Read field) and FieldWrite (Write field) instructions ............................................... 240

7.6.3 FILL_BLK (Fill block) and UFILL_BLK (Fill block uninterruptible) instructions.......................... 242

7.6.4 SWAP (Swap bytes) instruction ................................................................................................ 243

7.7 Conversion operations .............................................................................................................. 244

7.7.1 CONV (Convert value) instruction............................................................................................. 244

7.7.2 Conversion instructions for SCL ............................................................................................... 245

7.7.3 ROUND (Round numerical value) and TRUNC (Truncate numerical value) instructions......... 249

7.7.4 CEIL and FLOOR (Generate next higher and lower integer from floating-point number)

instructions ................................................................................................................................ 250

7.7.5 SCALE_X (Scale) and NORM_X (Normalize) instructions ....................................................... 251

7.8 Program control operations....................................................................................................... 254

7.8.1 JMP (Jump if RLO = 1), JMPN (Jump if RLO = 0), and Label (Jump label) instructions.......... 254

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7.8.2 JMP_LIST (Define jump list) instruction.....................................................................................255

7.8.3 SWITCH (Jump distributor) instruction ......................................................................................256

7.8.4 RET (Return) instruction ............................................................................................................258

7.8.5 ENDIS_PW (Enable/disable CPU passwords) instruction.........................................................259

7.8.6 RE_TRIGR (Restart cycle monitoring time) instruction..............................................................262

7.8.7 STP (Exit program) instruction...................................................................................................263

7.8.8 GET_ERROR and GET_ERROR_ID (Get error and error ID locally) instructions ....................263

7.8.9 SCL program control statements ...............................................................................................267

7.8.9.1 Overview of SCL program control statements ...........................................................................267

7.8.9.2 IF-THEN statement ....................................................................................................................268

7.8.9.3 CASE statement.........................................................................................................................269

7.8.9.4 FOR statement...........................................................................................................................270

7.8.9.5 WHILE-DO statement ................................................................................................................271

7.8.9.6 REPEAT-UNTIL statement ........................................................................................................272

7.8.9.7 CONTINUE statement ...............................................................................................................273

7.8.9.8 EXIT statement ..........................................................................................................................273

7.8.9.9 GOTO statement........................................................................................................................274

7.8.9.10 RETURN statement ...................................................................................................................274

7.9 Word logic operations ................................................................................................................275

7.9.1 AND, OR, and XOR logic operation instructions .......................................................................275

7.9.2 INV (Create ones complement) instruction................................................................................276

7.9.3 DECO (Decode) and ENCO (Encode) instructions ...................................................................276

7.9.4 SEL (Select), MUX (Multiplex), and DEMUX (Demultiplex) instructions ...................................278

7.10 Shift and rotate...........................................................................................................................281

7.10.1 SHR (Shift right) and SHL (Shift left) instructions ......................................................................281

7.10.2 ROR (Rotate right) and ROL (Rotate left) instructions ..............................................................282

8 Extended instructions.......................................................................................................................... 283

8.1 Date, time-of-day, and clock functions.......................................................................................283

8.1.1 Date and time-of-day instructions ..............................................................................................283

8.1.2 Clock functions...........................................................................................................................286

8.1.3 TimeTransformationRule data structure ....................................................................................289

8.1.4 SET_TIMEZONE (Set timezone) instruction..............................................................................290

8.1.5 RTM (Runtime meters) instruction .............................................................................................291

8.2 String and character...................................................................................................................292

8.2.1 String data overview ..................................................................................................................292

8.2.2 S_MOVE (Move character string) instruction.............................................................................293

8.2.3 String conversion instructions ....................................................................................................293

8.2.3.1 S_CONV, STRG_VAL, and VAL_STRG (Convert to/from character string and number)

instructions .................................................................................................................................293

8.2.3.2 Strg_TO_Chars and Chars_TO_Strg (Convert to/from character string and array of

CHAR) instructions ....................................................................................................................302

8.2.3.3 ATH and HTA (Convert to/from ASCII string and hexadecimal number) instructions ...............304

8.2.4 String operation instructions ......................................................................................................306

8.2.4.1 MAX_LEN (Maximum length of a character string) instruction ..................................................306

8.2.4.2 LEN (Determine the length of a character string) instruction.....................................................307

8.2.4.3 CONCAT (Combine character strings) instruction.....................................................................307

8.2.4.4 LEFT, RIGHT, and MID (Read substrings in a character string) instructions............................308

8.2.4.5 DELETE (Delete characters in a character string) instruction ...................................................310

8.2.4.6 INSERT (Insert characters in a character string) instruction .....................................................311

8.2.4.7 REPLACE (Replace characters in a character string) instruction .............................................312

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8.2.4.8 FIND (Find characters in a character string) instruction ........................................................... 313

8.3 Distributed I/O (PROFINET, PROFIBUS, or AS-i) .................................................................... 314

8.3.1 Distributed I/O Instructions........................................................................................................ 314

8.3.2 RDREC and WRREC (Read/write data record) instructions .................................................... 315

8.3.3 RALRM (Receive interrupt) instruction ..................................................................................... 318

8.3.4 STATUS parameter for RDREC, WRREC, and RALRM .......................................................... 322

8.3.5 DPRD_DAT and DPWR_DAT (Read/write consistent data for DP slaves) instructions ........... 326

8.3.6 DPNRM_DG (Read diagnostic data from a DP slave) instruction ............................................ 328

8.4 Interrupts ................................................................................................................................... 331

8.4.1 ATTACH and DETACH (Attach/detach an OB and an interrupt event) instructions................. 331

8.4.2 Cyclic interrupts......................................................................................................................... 334

8.4.2.1 SET_CINT (Set cyclic interrupt parameters) instruction ........................................................... 334

8.4.2.2 QRY_CINT (Query cyclic interrupt parameters) instruction ...................................................... 336

8.4.3 Time of day interrupts ............................................................................................................... 337

8.4.3.1 SET_TINTL (Set time of day interrupt)...................................................................................... 337

8.4.3.2 CAN_TINT (Cancel time of day interrupt) ................................................................................. 339

8.4.3.3 ACT_TINT (Activate time of day interrupt) ................................................................................ 339

8.4.3.4 QRY_TINT (Query status of time of day interrupt).................................................................... 340

8.4.4 Time delay interrupts................................................................................................................. 342

8.4.5 DIS_AIRT and EN_AIRT (Delay/enable execution of higher priority interrupts and

asynchronous error events) instructions ................................................................................... 344

8.5 Diagnostics (PROFINET or PROFIBUS) .................................................................................. 345

8.5.1 Diagnostic instructions .............................................................................................................. 345

8.5.2 Diagnostic events for distributed I/O ......................................................................................... 345

8.5.3 LED (Read LED status) instruction ........................................................................................... 346

8.5.4 DeviceStates instruction............................................................................................................ 347

8.5.4.1 DeviceStates example configurations....................................................................................... 349

8.5.5 ModuleStates instruction........................................................................................................... 353

8.5.5.1 ModuleStates example configurations ...................................................................................... 354

8.5.6 GET_DIAG (Read diagnostic information) instruction .............................................................. 358

8.6 Pulse ......................................................................................................................................... 364

8.6.1 CTRL_PWM (Pulse width modulation) instruction .................................................................... 364

8.6.2 Operation of the pulse outputs.................................................................................................. 365

8.6.3 Configuring a pulse channel for PWM ...................................................................................... 367

8.7 Recipes and Data logs .............................................................................................................. 369

8.7.1 Recipes ..................................................................................................................................... 369

8.7.1.1 Recipe overview........................................................................................................................ 369

8.7.1.2 Recipe DB example .................................................................................................................. 370

8.7.1.3 Program instructions that transfer recipe data.......................................................................... 374

8.7.1.4 Recipe example program .......................................................................................................... 378

8.7.2 Data logs ................................................................................................................................... 380

8.7.2.1 Data log record structure........................................................................................................... 381

8.7.2.2 Program instructions that control data logs............................................................................... 382

8.7.2.3 Working with data logs .............................................................................................................. 392

8.7.2.4 Limit to the size of data log files................................................................................................ 393

8.7.2.5 Data log example program........................................................................................................ 396

8.8 Data block control ..................................................................................................................... 401

8.8.1 READ_DBL and WRIT_DBL (Read/write a data block in load memory) instructions ............... 401

8.9 Address handling ...................................................................................................................... 404

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8.9.1 LOG2GEO (Determine the slot from the hardware identifier) instruction ..................................404

8.9.2 RD_ADDR (Determine the IO addresses from the hardware identifier) instruction...................406

8.10 Common error codes for the "Extended" instructions................................................................407

9 Technology instructions....................................................................................................................... 409

9.1 High-speed counter....................................................................................................................409

9.1.1 Operation of the high-speed counter .........................................................................................411

9.1.2 Configuration of the HSC ...........................................................................................................417

9.2 PID control .................................................................................................................................418

9.2.1 Inserting the PID instruction and technology object...................................................................420

9.2.2 PID_Compact instruction ...........................................................................................................422

9.2.3 PID_Compact instruction ErrorBit parameters...........................................................................426

9.2.4 PID_3Step instruction ................................................................................................................428

9.2.5 PID_3Step instruction ErrorBit parameters................................................................................435

9.2.6 Configuring the PID controller....................................................................................................437

9.2.7 Commissioning the PID controller..............................................................................................439

9.3 Motion control.............................................................................................................................441

9.3.1 Phasing ......................................................................................................................................446

9.3.2 Configuring a pulse generator....................................................................................................448

9.3.3 Configuring the axis ...................................................................................................................449

9.3.4 Configuring the TO_CommandTable_PTO................................................................................452

9.3.5 Motion control instructions .........................................................................................................455

9.3.5.1 MC instruction overview.............................................................................................................455

9.3.5.2 MC_Power (Release/block axis) instruction ..............................................................................456

9.3.5.3 MC_Reset (Confirm error) instruction ........................................................................................459

9.3.5.4 MC_Home (Home axis) instruction ............................................................................................460

9.3.5.5 MC_Halt (Pause axis) instruction...............................................................................................462

9.3.5.6 MC_MoveAbsolute (Position axis absolutely) instruction ..........................................................464

9.3.5.7 MC_MoveRelative (Position axis relatively) instruction .............................................................466

9.3.5.8 MC_MoveVelocity (Move axis at predefined velocity) instruction..............................................468

9.3.5.9 MC_MoveJog (Move axis in jog mode) instruction ....................................................................471

9.3.5.10 MC_CommandTable (Run axis commans as movement sequence) instruction.......................473

9.3.5.11 MC_ChangeDynamic (Change dynamc settings for the axis) instruction..................................476

9.3.5.12 MC_WriteParam (write parameters of a technology object) instruction.....................................478

9.3.5.13 MC_ReadParam instruction (read parameters of a technology object) instruction ...................480

9.3.6 Operation of motion control for S7-1200....................................................................................481

9.3.6.1 CPU outputs used for motion control.........................................................................................481

9.3.6.2 Hardware and software limit switches for motion control ..........................................................483

9.3.6.3 Homing.......................................................................................................................................486

9.3.6.4 Jerk limit .....................................................................................................................................491

9.3.7 Commissioning...........................................................................................................................492

9.3.8 Monitoring active commands .....................................................................................................497

9.3.8.1 Monitoring MC instructions with a "Done" output parameter .....................................................497

9.3.8.2 Monitoring the MC_Velocity instruction......................................................................................501

9.3.8.3 Monitoring the MC_MoveJog instruction....................................................................................505

10 Communication................................................................................................................................... 509

10.1 Number of asynchronous communication connections supported ............................................511

10.2 PROFINET .................................................................................................................................512

10.2.1 Local/Partner connection ...........................................................................................................512

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10.2.2 Open user communication ........................................................................................................ 514

10.2.2.1 Connection IDs for the Open user communication instructions................................................ 514

10.2.2.2 Protocols ................................................................................................................................... 517

10.2.2.3 Ad hoc mode ............................................................................................................................. 518

10.2.2.4 TCP and ISO on TCP................................................................................................................ 519

10.2.2.5 TSEND_C and TRCV_C (Send and receive data via Ethernet) instructions ............................ 520

10.2.2.6 TCON, TDISCON, TSEND, and TRCV (TCP communication) instructions ............................. 527

10.2.2.7 UDP........................................................................................................................................... 535

10.2.2.8 TUSEND and TURCV ............................................................................................................... 535

10.2.2.9 T_CONFIG ................................................................................................................................ 541

10.2.2.10 Common parameters for instructions................................................................................... 548

10.2.3 Communication with a programming device ............................................................................. 550

10.2.3.1 Establishing the hardware communications connection ........................................................... 550

10.2.3.2 Configuring the devices............................................................................................................. 551

10.2.3.3 Assigning Internet Protocol (IP) addresses............................................................................... 551

10.2.3.4 Testing your PROFINET network ............................................................................................. 551

10.2.4 HMI-to-PLC communication ...................................................................................................... 552

10.2.4.1 Configuring logical network connections between two devices ................................................ 553

10.2.5 PLC-to-PLC communication...................................................................................................... 553

10.2.5.1 Configuring logical network connections between two devices ................................................ 554

10.2.5.2 Configuring the Local/Partner connection path between two devices ...................................... 555

10.2.5.3 Configuring transmit (send) and receive parameters................................................................ 555

10.2.6 Configuring a CPU and PROFINET IO device.......................................................................... 558

10.2.6.1 Adding a PROFINET IO device................................................................................................. 558

10.2.6.2 Configuring logical network connections between a CPU and a PROFINET IO device .......... 558

10.2.6.3 Assigning CPUs and device names.......................................................................................... 559

10.2.6.4 Assigning Internet Protocol (IP) addresses............................................................................... 559

10.2.6.5 Configuring the IO cycle time.................................................................................................... 560

10.2.7 Configuring a CPU and PROFINET iDevice ............................................................................. 561

10.2.7.1 I-device functionality.................................................................................................................. 561

10.2.7.2 Properties and advantages of the I-device ............................................................................... 562

10.2.7.3 Characteristics of an I-device.................................................................................................... 562

10.2.7.4 Data exchange between higher- and lower-level IO system .................................................... 565

10.2.7.5 Configuring the I-device ............................................................................................................ 567

10.2.8 Diagnostics................................................................................................................................ 569

10.2.9 Distributed I/O instructions........................................................................................................ 569

10.2.10 Diagnostic instructions .............................................................................................................. 569

10.2.11 Diagnostic events for distributed I/O ......................................................................................... 569

10.3 PROFIBUS................................................................................................................................ 569

10.3.1 Communications services of the PROFIBUS CMs ................................................................... 571

10.3.2 Reference to the PROFIBUS CM user manuals....................................................................... 572

10.3.3 Configuring a DP master and slave device............................................................................... 572

10.3.3.1 Adding the CM 1243-5 (DP master) module and a DP slave ................................................... 572

10.3.3.2 Configuring logical network connections between two PROFIBUS devices ............................ 573

10.3.3.3 Assigning PROFIBUS addresses to the CM 1243-5 module and DP slave ............................. 574

10.3.4 Distributed I/O instructions........................................................................................................ 575

10.3.5 Diagnostic instructions .............................................................................................................. 575

10.3.6 Diagnostic events for distributed............................................................................................... 576

10.4 AS-i............................................................................................................................................ 576

10.4.1 Configuring an AS-i master and slave device........................................................................... 577

10.4.1.1 Adding the AS-i master CM 1243-2 and AS-i slave.................................................................. 577

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10.4.1.2 Configuring logical network connections between two AS-i devices.........................................578

10.4.1.3 Configuring the properties of the AS-i master CM1243-2..........................................................578

10.4.1.4 Assigning an AS-i address to an AS-i slave ..............................................................................579

10.4.2 Exchanging data between the user program and AS-i slaves...................................................582

10.4.2.1 STEP 7 basic configuration........................................................................................................582

10.4.2.2 Configuring slaves with STEP 7.................................................................................................583

10.4.3 Distributed I/O instructions.........................................................................................................585

10.4.4 Working with AS-i online tools ...................................................................................................585

10.5 S7 communication .....................................................................................................................587

10.5.1 GET and PUT (Read and write from a remote CPU) instructions .............................................587

10.5.2 Creating an S7 connection.........................................................................................................591

10.5.3 Configuring the Local/Partner connection path between two devices .......................................592

10.5.4 GET/PUT connection parameter assignment ............................................................................592

10.5.4.1 Connection parameters..............................................................................................................593

10.5.4.2 Configuring a CPU-to-CPU S7 connection ................................................................................596

11 Web server ......................................................................................................................................... 601

11.1 Enabling the Web server............................................................................................................603

11.2 Configuring Web server users ...................................................................................................604

11.3 Accessing the Web pages from a PC ........................................................................................606

11.4 Accessing the Web pages from a mobile device.......................................................................607

11.5 Standard Web pages .................................................................................................................609

11.5.1 Layout of the standard Web pages............................................................................................609

11.5.2 Logging in and user privileges ...................................................................................................610

11.5.3 Introduction ................................................................................................................................613

11.5.4 Start............................................................................................................................................614

11.5.5 Identification ...............................................................................................................................615

11.5.6 Diagnostic Buffer........................................................................................................................616

11.5.7 Module Information ....................................................................................................................616

11.5.8 Communication ..........................................................................................................................620

11.5.9 Variable Status...........................................................................................................................620

11.5.10 File Browser ...............................................................................................................................622

11.6 User-defined Web pages ...........................................................................................................625

11.6.1 Creating HTML pages................................................................................................................626

11.6.2 AWP commands supported by the S7-1200 Web server ..........................................................627

11.6.2.1 Reading variables ......................................................................................................................629

11.6.2.2 Writing variables.........................................................................................................................630

11.6.2.3 Reading special variables ..........................................................................................................631

11.6.2.4 Writing special variables ............................................................................................................633

11.6.2.5 Using an alias for a variable reference ......................................................................................634

11.6.2.6 Defining enum types ..................................................................................................................635

11.6.2.7 Referencing CPU variables with an enum type .........................................................................635

11.6.2.8 Creating fragments ....................................................................................................................637

11.6.2.9 Importing fragments ...................................................................................................................638

11.6.2.10 Combining definitions............................................................................................................638

11.6.2.11 Handling tag names that contain special characters ............................................................639

11.6.3 Configuring use of user-defined Web pages .............................................................................641

11.6.4 Programming the WWW instruction for user-defined web pages..............................................642

11.6.5 Downloading the program blocks to the CPU............................................................................643

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11.6.6 Accessing the user-defined Web pages ................................................................................... 644

11.6.7 Constraints specific to user-defined Web pages....................................................................... 644

11.6.8 Example of a user-defined web page ....................................................................................... 645

11.6.8.1 Web page for monitoring and controlling a wind turbine........................................................... 645

11.6.8.2 Reading and displaying controller data..................................................................................... 647

11.6.8.3 Using an enum type .................................................................................................................. 648

11.6.8.4 Writing user input to the controller ............................................................................................ 649

11.6.8.5 Writing a special variable .......................................................................................................... 650

11.6.8.6 Reference: HTML listing of remote wind turbine monitor Web page ........................................ 650

11.6.8.7 Configuration in STEP 7 of the example Web page ................................................................. 654

11.6.9 Setting up user-defined Web pages in multiple languages....................................................... 656

11.6.9.1 Creating the folder structure...................................................................................................... 656

11.6.9.2 Programming the language switch............................................................................................ 657

11.6.9.3 Configuring STEP 7 to use a multi-language page structure.................................................... 659

11.6.10 Advanced user-defined Web page control................................................................................ 660

11.7 Constraints ................................................................................................................................ 664

11.7.1 Feature restrictions when the Internet options disable JavaScript ........................................... 665

11.7.2 Feature restrictions when the Internet options do not allow cookies ........................................ 666

11.7.3 Importing the Siemens security certificate ................................................................................ 666

11.7.4 Importing CSV format data logs to non-USA/UK versions of Microsoft Excel.......................... 667

12 Communication processor and Modbus TCP........................................................................................669

12.1 Using the serial communication interfaces ............................................................................... 669

12.2 Biasing and terminating an RS485 network connector............................................................. 670

12.3 Point-to-point (PtP) communication .......................................................................................... 671

12.3.1 Configuring the communication ports ....................................................................................... 672

12.3.1.1 Managing flow control ............................................................................................................... 674

12.3.2 Configuring the transmit (send) and receive parameters.......................................................... 675

12.3.2.1 Configuring transmit (send) parameters ................................................................................... 675

12.3.2.2 Configuring receive parameters................................................................................................ 676

12.3.3 Point-to-point instructions.......................................................................................................... 684

12.3.3.1 Common parameters for Point-to-Point instructions................................................................. 684

12.3.3.2 PORT_CFG (Configure communication parameters dynamically) instruction.......................... 686

12.3.3.3 SEND_CFG (Configure serial transmission parameters dynamically) instruction .................... 688

12.3.3.4 RCV_CFG (Configure serial receive parameters dynamically) instruction ............................... 689

12.3.3.5 SEND_PTP (Transmit send buffer data) instruction ................................................................. 694

12.3.3.6 RCV_PTP (Enable receive messages) instruction ................................................................... 697

12.3.3.7 RCV_RST (Delete receive buffer) instruction ........................................................................... 698

12.3.3.8 SGN_GET (Query RS-232 signals) instruction ......................................................................... 699

12.3.3.9 SGN_SET (Set RS-232 signals) instruction.............................................................................. 700

12.3.4 Programming the PtP communications..................................................................................... 702

12.3.4.1 Polling architecture.................................................................................................................... 703

12.3.5 Example: Point-to-Point communication ................................................................................... 704

12.3.5.1 Configuring the communication module.................................................................................... 705

12.3.5.2 RS422 and RS485 operating modes ........................................................................................ 707

12.3.5.3 Programming the STEP 7 program........................................................................................... 710

12.3.5.4 Configuring the terminal emulator............................................................................................. 711

12.3.5.5 Running the example program.................................................................................................. 712

12.4 Universal serial interface (USS) communication....................................................................... 712

12.4.1 Requirements for using the USS protocol................................................................................. 713

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12.4.2 USS_PORT (Edit communication via USS network) instruction................................................715

12.4.3 USS_DRV (Swap data with drive) instruction ............................................................................716

12.4.4 USS_RPM (Readout parameters from the drive) instruction.....................................................719

12.4.5 USS_WPM (Change parameters in the drive) instruction..........................................................720

12.4.6 USS status codes.......................................................................................................................722

12.4.7 General drive setup information.................................................................................................724

12.5 Modbus communication .............................................................................................................727

12.5.1 Overview of Modbus RTU and TCP communication Modbus TCP instructions V13 ................727

12.5.2 Modbus TCP ..............................................................................................................................730

12.5.2.1 MB_CLIENT (Communicate via PROFINET as Modubus TCP client) instruction ....................730

12.5.2.2 MB_SERVER (Communicate via PROFINET as Modbus TCP server) instruction...................736

12.5.2.3 MB_SERVER example: Multiple TCP connections ...................................................................742

12.5.2.4 MB_CLIENT example 1: Multiple requests with common TCP connection ...............................743

12.5.2.5 MB_CLIENT example 2: Multiple requests with different TCP connections ..............................744

12.5.2.6 MB_CLIENT example 3: Output image write request ................................................................745

12.5.2.7 MB_CLIENT example 4: Coordinating multiple requests ..........................................................745

12.5.3 Modbus RTU ..............................................................................................................................746

12.5.3.1 MB_COMM_LOAD (Configure port on the PtP module for Modbus RTU) instruction...............747

12.5.3.2 MB_MASTER (Communicate via the PtP port as Modbus master) instruction .........................749

12.5.3.3 MB_SLAVE (Communicate via the PtP port as Modubus slave) instruction .............................755

12.5.3.4 Modbus RTU master example program.....................................................................................762

12.5.3.5 Modbus RTU slave example program .......................................................................................764

12.6 Telecontrol and TeleService with the CP 1242-7 ......................................................................765

12.6.1 Connection to a GSM network ...................................................................................................765

12.6.2 Applications of the CP 1242-7 ...................................................................................................767

12.6.3 Other properties of the CP .........................................................................................................768

12.6.4 Accessories................................................................................................................................769

12.6.5 Configuration examples for telecontrol ......................................................................................770

13 Teleservice communication (SMTP email)........................................................................................... 775

13.1 TM_Mail (Send email) instruction...............................................................................................775

14 Online and diagnostic tools ................................................................................................................. 783

14.1 Status LEDs ...............................................................................................................................783

14.2 Going online and connecting to a CPU......................................................................................786

14.3 Assigning a name to a PROFINET IO device online .................................................................787

14.4 Setting the IP address and time of day......................................................................................789

14.5 Resetting to factory settings.......................................................................................................789

14.6 Updating firmware ......................................................................................................................791

14.7 CPU operator panel for the online CPU.....................................................................................792

14.8 Monitoring the cycle time and memory usage ...........................................................................792

14.9 Displaying diagnostic events in the CPU ...................................................................................793

14.10 Comparing offline and online CPUs...........................................................................................794

14.11 Monitoring and modifying values in the CPU.............................................................................795

14.11.1 Going online to monitor the values in the CPU..........................................................................796

14.11.2 Displaying status in the program editor .....................................................................................797

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14.11.3 Capturing the online values of a DB to reset the start values................................................... 797

14.11.4 Using a watch table to monitor and modify values in the CPU ................................................. 798

14.11.4.1 Using a trigger when monitoring or modifying PLC tags ..................................................... 799

14.11.4.2 Enabling outputs in STOP mode.......................................................................................... 800

14.11.5 Forcing values in the CPU ........................................................................................................ 801

14.11.5.1 Using the force table ............................................................................................................ 801

14.11.5.2 Operation of the Force function ........................................................................................... 802

14.12 Downloading in RUN mode....................................................................................................... 803

14.12.1 Prerequisites for "Download in RUN mode".............................................................................. 804

14.12.2 Changing your program in RUN mode...................................................................................... 805

14.12.3 Downloading selected blocks.................................................................................................... 806

14.12.4 Downloading a single selected block with a compile error in another block............................. 807

14.12.5 Modifying and downloading existing blocks in RUN mode ....................................................... 808

14.12.6 System reaction if the download process fails .......................................................................... 811

14.12.7 Considerations when downloading in RUN mode .................................................................... 811

14.13 Tracing and recording CPU data on trigger conditions............................................................. 813

15 SM 1278 4xIO-Link Master...................................................................................................................815

15.1 SM 1278 4xIO-Link Master overview ........................................................................................ 815

15.1.1 Overview ................................................................................................................................... 815

15.1.2 IO-Link and your STEP 7 program............................................................................................ 815

15.1.3 Properties.................................................................................................................................. 816

15.1.4 Functions................................................................................................................................... 817

15.1.5 Replacing the SM 4xIO-Link signal module .............................................................................. 817

15.1.6 Reset module to factory settings............................................................................................... 818

15.2 Connecting ................................................................................................................................ 819

15.2.1 Pin assignment.......................................................................................................................... 819

15.2.2 Block diagram ........................................................................................................................... 820

15.3 Parameters/address space ....................................................................................................... 821

15.3.1 Configuration............................................................................................................................. 821

15.3.2 Parameters................................................................................................................................ 821

15.3.3 Address space .......................................................................................................................... 822

15.3.4 Parameter data record .............................................................................................................. 822

15.4 Interrupt, error, and system alarms........................................................................................... 824

15.4.1 Status and error display ............................................................................................................ 824

15.4.2 Diagnostic alarms...................................................................................................................... 826

A Technical specifications .......................................................................................................................829

A.1 General technical specifications ............................................................................................... 829

A.2 CPU 1211C ............................................................................................................................... 837

A.2.1 General specifications and features.......................................................................................... 837

A.2.2 Timers, counters and code blocks supported by CPU 1211C .................................................. 838

A.2.3 Digital inputs and outputs.......................................................................................................... 840

A.2.4 Analog inputs ............................................................................................................................ 842

A.2.4.1 Step response of the built-in analog inputs of the CPU ............................................................ 842

A.2.4.2 Sample time for the built-in analog ports of the CPU................................................................ 843

A.2.4.3 Measurement ranges of the analog inputs for voltage (CPUs)................................................. 843

A.2.5 CPU 1211 wiring diagrams ....................................................................................................... 844

A.3 CPU 1212C ............................................................................................................................... 847

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A.3.1 General specifications and features...........................................................................................847

A.3.2 Timers, counters and code blocks supported by CPU 1212C...................................................848

A.3.3 Digital inputs and outputs...........................................................................................................850

A.3.4 Analog inputs .............................................................................................................................852

A.3.4.1 Step response of the built-in analog inputs of the CPU.............................................................852

A.3.4.2 Sample time for the built-in analog ports of the CPU.................................................................853

A.3.4.3 Measurement ranges of the analog inputs for voltage (CPUs)..................................................853

A.3.5 CPU 1212C wiring diagrams......................................................................................................854

A.4 CPU 1214C................................................................................................................................857

A.4.1 General specifications and features...........................................................................................857

A.4.2 Timers, counters and code blocks supported by CPU 1214C...................................................858

A.4.3 Digital inputs and outputs...........................................................................................................860

A.4.4 Analog inputs .............................................................................................................................862

A.4.4.1 Step response of the built-in analog inputs of the CPU.............................................................862

A.4.4.2 Sample time for the built-in analog ports of the CPU.................................................................863

A.4.4.3 Measurement ranges of the analog inputs for voltage (CPUs)..................................................863

A.4.5 CPU 1214C wiring diagrams......................................................................................................864

A.5 CPU 1215C................................................................................................................................867

A.5.1 General specifications and features...........................................................................................867

A.5.2 Timers, counters and code blocks supported by CPU 1215C...................................................869

A.5.3 Digital inputs and outputs...........................................................................................................871

A.5.4 Analog inputs and outputs .........................................................................................................872

A.5.4.1 Step response of built-in analog inputs of the CPU...................................................................873

A.5.4.2 Sample time for the built-in analog ports of the CPU.................................................................873

A.5.4.3 Measurement ranges of the analog inputs for voltage (CPUs)..................................................873

A.5.4.4 Analog output specifications ......................................................................................................874

A.5.5 CPU 1215C wiring diagrams......................................................................................................875

A.6 CPU 1217C................................................................................................................................879

A.6.1 General specifications and features...........................................................................................879

A.6.2 Timers, counters and code blocks supported by CPU 1217C...................................................880

A.6.3 Digital inputs and outputs...........................................................................................................882

A.6.4 Analog inputs and outputs .........................................................................................................887

A.6.4.1 Analog input specifications ........................................................................................................887

A.6.4.2 Step response of built-in analog inputs of the CPU...................................................................888

A.6.4.3 Sample time for the built-in analog ports of the CPU.................................................................888

A.6.4.4 Measurement ranges of the analog inputs for voltage (CPUs)..................................................889

A.6.4.5 Analog output specifications ......................................................................................................889

A.6.5 CPU 1217C wiring diagrams......................................................................................................891

A.7 Digital signal modules (SMs) .....................................................................................................892

A.7.1 SM 1221 digital input specifications...........................................................................................892

A.7.2 SM 1222 8-point digital output specifications ............................................................................894

A.7.3 SM 1222 16-point digital output specifications ..........................................................................895

A.7.4 SM 1223 digital input/output VDC specifications .......................................................................900

A.7.5 SM 1223 digital input/output AC specifications..........................................................................904

A.8 Analog signal modules (SMs) ....................................................................................................907

A.8.1 SM 1231 analog input module specifications ............................................................................907

A.8.2 SM 1232 analog output module specifications ..........................................................................910

A.8.3 SM 1234 analog input/output module specifications .................................................................913

A.8.4 Step response of the analog inputs ...........................................................................................916

A.8.5 Sample time and update times for the analog inputs.................................................................916

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A.8.6 Measurement ranges of the analog inputs for voltage and current (SB and SM)..................... 916

A.8.7 Measurement ranges of the analog outputs for voltage and current (SB and SM) .................. 917

A.9 Thermocouple and RTD signal modules (SMs) ........................................................................ 919

A.9.1 SM 1231 Thermocouple............................................................................................................ 919

A.9.1.1 Basic operation for a thermocouple .......................................................................................... 922

A.9.1.2 Selection tables for the SM 1231 thermocouple ....................................................................... 923

A.9.2 SM 1231 RTD ........................................................................................................................... 925

A.9.2.1 Selection tables for the SM 1231 RTD...................................................................................... 928

A.10 Technology modules ................................................................................................................. 931

A.10.1 SM 1278 4xIO-Link Master SM................................................................................................. 931

A.10.1.1 SM 1278 4xIO-Link Master signal module specifications ......................................................... 931

A.10.1.2 SM 1278 4xIO-Link Master SM wiring diagrams....................................................................... 934

A.11 Digital signal boards (SBs)........................................................................................................ 935

A.11.1 SB 1221 200 kHz digital input specifications ............................................................................ 935

A.11.2 SB 1222 200 kHz digital output specifications .......................................................................... 937

A.11.3 SB 1223 200 kHz digital input / output specifications ............................................................... 940

A.11.4 SB 1223 2 X 24 VDC input / 2 X 24 VDC output specifications................................................ 943

A.12 Analog signal boards (SBs)....................................................................................................... 946

A.12.1 SB 1231 1 analog input specifications ...................................................................................... 946

A.12.2 SB 1232 1 analog output specifications.................................................................................... 948

A.12.3 Measurement ranges for analog inputs and outputs ................................................................ 950

A.12.3.1 Step response of the analog inputs .......................................................................................... 950

A.12.3.2 Sample time and update times for the analog inputs................................................................ 950

A.12.3.3 Measurement ranges of the analog inputs for voltage and current (SB and SM)..................... 950

A.12.3.4 Measurement ranges of the analog outputs for voltage and current (SB and SM) .................. 951

A.12.4 Thermocouple signal boards (SBs)........................................................................................... 953

A.12.4.1 SB 1231 1 analog thermocouple input specifications ............................................................... 953

A.12.4.2 Basic operation for a thermocouple .......................................................................................... 954

A.12.5 RTD signal boards (SBs) .......................................................................................................... 957

A.12.5.1 SB 1231 1 analog RTD input specifications.............................................................................. 957

A.12.5.2 Selection tables for the SB 1231 RTD ...................................................................................... 960

A.13 BB 1297 Battery board.............................................................................................................. 962

A.14 Communication interfaces......................................................................................................... 964

A.14.1 PROFIBUS................................................................................................................................ 964

A.14.1.1 CM 1242-5 PROFIBUS DP Slave............................................................................................. 964

A.14.1.2 CM 1243-5 PROFIBUS DP Master........................................................................................... 965

A.14.2 GPRS ........................................................................................................................................ 967

A.14.2.1 CP 1242-7 GPRS...................................................................................................................... 967

A.14.3 CM 1243-2 AS-i master............................................................................................................. 970

A.14.3.1 Technical data for the AS-i master CM 1243-2......................................................................... 970

A.14.3.2 Electrical connections of the AS-i master CM 1243-2 .............................................................. 971

A.14.4 RS232, RS422, and RS485 ...................................................................................................... 973

A.14.4.1 CB 1241 RS485 specifications.................................................................................................. 973

A.14.4.2 CM 1241 RS232 specifications................................................................................................. 975

A.14.4.3 CM 1241 RS422/485 specifications.......................................................................................... 976

A.15 TeleService (TS Adapter and TS Adapter modular) ................................................................. 978

A.16 SIMATIC memory cards............................................................................................................ 978

A.17 Input simulators......................................................................................................................... 978

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