Siemens Simatic S7-400 User manual
Preface, Contents
Product Overview 1
Installing the S7-400 2
Addressing the S7-400 3
Wiring the S7-400 4
Networking 5
Starting Up 6
Maintenance 7
Assembling the M7-400 8
Appendices:
Assembling and Installing
Systems A
Guidelines for Handling
Electrostatically-Sensitive
Devices (ESD) B
Siemens Worldwide C
Glossary, Index
S7-400 and M7-400
Programmable Controllers
Hardware and Installation
Manual
This manual is part of the documentation
package with the order number:
6ES7498-8AA03-8BA0
07/99
C79000-G7076-C424
Release 01
SIMATIC
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ii
This manual contains notices which you should observe to ensure your own personal safety, as well
astoprotecttheproductandconnectedequipment.Thesenoticesarehighlightedinthemanualby
a warning triangle and are marked as follows according to the level of danger:
!Danger
#(#.-.".."-0,*,-)(&#($/,2),-/-.(.#&*,)*,.2'!1#&&,-/&.# *,)*,*,/.#)(-,
()..%(
!Warning
#(#.-.".."-0,*,-)(&#($/,2),-/-.(.#&*,)*,.2'!(,-/&.# *,)*,*,/.#)(-,
()..%(
!Caution
#(#.-.".'#(),*,-)(&#($/,2),*,)*,.2'!(,-/&.# *,)*,*,/.#)(-,()..%(
Note
,1-2)/,..(.#)(.)*,.#/&,&2#'*),.(.#( ),'.#)()(."*,)/."(&#(!."*,)/.),.)*,.#/&,
*,.) .")/'(..#)(
The device/system may only be set up and operated in conjunction with this manual.
(&2-")/&&&)1.)#(-.&&(1),%)(."#-+/#*'(./&# #*,-)(-,
#(-*,-)(-1"),/."),#3.))''#--#)(.)!,)/((.).!#,/#.-+/#*'(.(
-2-.'-#(),(1#."-.&#-"- .2*,.#-(-.(,-
Notethefollowing:
!Warning
"#-0#(#.-)'*)((.-'2)(&2/- ),."**&#.#)(--,##(.".&)!),."."(#&
-,#*.#)(()(&2#()((.#)(1#."0#-),)'*)((.- ,)').",'(/ ./,,-1"#""0(
**,)0),,)''(2#'(-
"#-*,)/.()(&2 /(.#)(),,.&2(- &2# #.#-.,(-*),.-.),-./*(#(-.&&),,.&2(
)*,.('#(.#(-,)''(
RR(R,,!#-.,.,',%-)
"#,*,.#-/-#(! ),."#,)1(*/,*)--(2).",('-#(."#-)/'(.1"#", ,.).,',%-'#!".
#( ,#(!/*)(.",#!".-) .".,',%)1(,-
Wehavecheckedthecontentsofthismanualforagreementwiththe
hardware and software described. Since deviations cannot be
precludedentirely, we cannot guarantee full agreement. However,
the data in this manual are reviewed regularly and any necessary
corrections included in subsequent editions. Suggestions for
improvementarewelcomed.
DisclaimerofLiability
CopyrightESiemens AG 1999 Allrights reserved
The reproduction, transmission or use of this document or its
contents is not permitted without express written authority.
Offenders will be liable for damages. All rights, including rights
createdbypatentgrantorregistrationofautilitymodelordesign,are
reserved.
#'(-
,#"/.)'.#-#,/(!-5/((.,#-."(#%
-" .-!#.(/-.,#5/.)'.#-#,/(!--2-.'
)-. "45/,(,!
E#'(-
/$..)"(!1#.")/.*,#),().#
#'(-%.#(
!
-&&-" . 55
Safety Guidelines
Qualified Personnel
Correct Usage
Trademarks
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iii
S7-400andM7-400ProgrammableControllers,InstallationManual
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Preface
Purpose of the Manual
The information given in this manual makes it possible for you to:
install and wire an S7-400 memory programmable controller
configure an M7-400 automation computer for mechanical and electrical
installation
A description of the functions and technical specifications of the signal modules,
power supply modules and interface modules can be found in the reference
manual
Module Specifications
.
Contents of the Manual
The manual contains the following subjects:
Installing the S7-400/M7-400
Wiring the S7-400/M7-400 and preparing it for commissioning.
Scope of the Documentation Package
This manual is part of the SIMATIC S7-400, M7-400 documentation package,
order number 6ES7 498-8AA03-8BA0, comprising the following manuals:
Manual Contents
S7-400 and M7-400 Programmable
Controllers,Installation Installing and starting up an S7-400 or an M7-400
S7-400 and M7-400 Programmable
Controllers, Module Specifications Data for modules and components of the S7-400
and M7-400
S7-400 Instruction List Complete list of instructions of the S7-400 CPUs
with all run times
Standards
The S7-400 programmable controller meets the requirements of the IEC 1131,
part 2. The S7-400 meets the requirements for CE labeling. The S7-400 has CSA,
UL and FM approval.
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Preface
iv S7-400andM7-400ProgrammableControllers,InstallationManual
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Recycling and Disposal
The SIMATIC S7-400/M7-400 is an environmentally friendly product. It is
characterized by the following points:
The plastic for the casing is coated with a halogen-free flame retardant despite
its high resistance to fire.
Labeling is done by laser (meaning no labels)
The plastics are coded according to DIN 54840
Fewer materials are used in this compact design, fewer components are
required as the result of integration in ASICs
The SIMATIC S7-400/M7-400 can be recycled as a result of its minimal use of
harmful substances.
For environmentally compatible recycling and disposal of your old SIMATIC device
in accordance with the current state of the art, please contact:
Siemens Aktiengesellschaft
Technische Dienstleistungen
ATD TD 3 Kreislaufwirtschaft
Postfach 32 40
D-91052 Erlangen
Telefon: (+49) 9131 / 7-33698
Fax: (+49) 9131 / 7-26643
This Siemens department provides a comprehensive and flexible disposal service
at a fixed cost with individual consultancy. You will be provided with papers
documenting the breaking down of your system giving details on the fractional
parts and the relevant verification papers for the materials.
Audience
This manual is intended for the following audience:
Installers
Startup specialists
Service and maintenance personnel
Where is this Package Valid?
This documentation package contains the descriptions of all the modules that are
valid at the time of publishing of the manuals. The order numbers of the modules
and other components to which these manuals apply are specified, where
appropriate, in the corresponding data sheets in the reference manual and in the
chapter entitled ”Spare Parts.”
We reserve the right to provide new modules and modules with a new product
release with a product information containing the latest information on the module.
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Preface
v
S7-400andM7-400ProgrammableControllers,InstallationManual
C79000-G7076-C424-01
Additional Manuals Required for S7-400
This documentation package describes the hardware of the S7-400. You will need
the following additional documentation for programming and starting up an S7-400:
Manual/
Manual Package Contents
Standard Software
for S7 and M7
STEP 7 Basic
Information
Installing and starting up STEP 7 on a programming device / PC
Working with STEP 7 with the following contents:
Managing projects and files
Configuring and assigning parameters to the S7-400 configuration
Assigning symbolic names for user programs
Creating and testing a user program in STL/LAD
Creating data blocks
Configuring the communication between two or more CPUs
Loading, storing and deleting user programs in the CPU / programming device
Monitoring and controlling user programs
Monitoring and controlling the CPU
Guide for efficiently implementing the programming task with the programming
device / PC and STEP 7
How the CPUs work (for example, memory concept, access to inputs and
outputs, addressing, blocks, data management)
Description of STEP 7 data management
Using data types of STEP 7
Using linear and structured programming
Using block call instructions
Using the debug and diagnostic functions of the CPUs in the user program (for
example, error OBs, status word)
STEP 7 Reference
Information
Statement List (STL)
for S7-300 and
S7-400
Ladder Logic (LAD)
for S7-300 and
Basic procedure for working with STL, LAD, or FBD (for example, structure of
STL, LAD, or FBD, number formats, syntax)
Description of all instructions in STEP 7 (with program examples)
Description of the various addressing methods in STEP 7 (with examples)
Description of all functions integrated in the CPUs
Description of the internal registers in the CPU
f
or
S7
-
300
an
d
S7-400
Function Block
Diagram (FBD) for
S7-300 and S7-400
System and
Standard Functions
Descri tion
of
the
internal
registers
in
the
CPU
Description of all system functions integrated in the CPUs
Description of all organization blocks integrated in the CPUs
Manual
PG 7xx
Description of the programming device hardware
Connecting a programming device to various devices
Starting up a programming device
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Preface
vi S7-400andM7-400ProgrammableControllers,InstallationManual
C79000-G7076-C424-01
Additional Manuals Required for M7-400
This documentation package describes the hardware of the M7-400. You will need
the following additional documentation for programming and starting up an M7-400:
Documentation Contents Order No.
SIMATIC M7 Technical
Overview Describes the available components,
possible structures and principles of
communication
6ES7 498-0AA00-8AA0
System Software for
M7-300/400 Program Design
Programming Manual
Designing, writing and testing a C program
for M7 CPU/FM modules with the M7 SYS
programming package, using the M7 SYS
functions
6ES7 802-0FA01-0AA0
System Software for
M7-300/400 System and
Standard Functions Reference
Manual
Detailed description of the M7 SYS functions
and data structures, listing of messages
types
System Software for
M7-300/400 Installation and
Operation User Manual
Installing and configuring the operating
system and system software
Further Information
For further information on S7-400 and memory programmable controllers, see the
list in the Appendix.
CD-ROM
Additionally, complete SIMATIC S7 documentation is available on CD-ROM.
Structure of this Manual
To facilitate rapid access to special information, the manual contains the following
aids:
At the start of the manual, you will find a complete list of contents.
The appendix is followed by a glossary which defines the important technical
terms used in the manual.
At the end of the manual there is a detailed index to enable you to find the
desired information quickly.
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Preface
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S7-400andM7-400ProgrammableControllers,InstallationManual
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Additional Assistance
If you have any questions regarding the products described in these manuals and
cannot find an answer in the paper documentation or in the online help, please
contact the Siemens representative in your area. You will find a list of addresses in
the Appendix entitled “Siemens Worldwide” at the end of this manual.
If you have any questions or comments on this manual, please fill out the remarks
form at the end of the manual and return it to the address shown on the form. We
would be grateful if you could also take the time to give us your personal opinion of
the manual.
Siemens also offers a number of training courses to introduce you to the
SIMATIC S7 automation system. Please contact your regional training center or
the central training center in Nuremberg, Germany for details: D-90327
Nuremberg, Tel. (+49) 911 / 895 3154.
Up-To-Date Information
You can find up-to-date information on SIMATIC products from the following
sources:
On the Internet under http://www.ad.siemens.de/
In addition, the SIMATIC Customer Support provides up-to-date information and
download facilities for users of SIMATIC products:
On Internet under http://www.ad.siemens.de/simatic.cs
Via SIMATIC Customer Support Mailbox under the following number
+49 (911) 895-7100
For dialing into the mailbox use a modem of up to V.34 (28.8 Kbps) and set the
following parameters: 8, N, 1, ANSI, or alternatively use ISDN (x. 75, 64 Kbps).
You can reach the SIMATIC Customer Support by phone using the number
(+49) (911) 895-7000 and by fax using (+49) (911) 895-7002. You can also send
enquiries by e-mail on the Internet or by mail to the above mailbox.
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Preface
viii S7-400andM7-400ProgrammableControllers,InstallationManual
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Contents
1 Product Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Installing the S7-400 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Assembling an S7-400 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Assembling the Central Rack (CR) and Expansion Rack (ER) 2-6. . . . . . . . .
2.3 Segmented CR 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Mounting and Grounding the Racks 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 Chassis Terminal Connection in the Non-Isolated Configuration 2-14. . . . . . . .
2.6 Methods of Ventilation 2-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7 Changing the Ventilation with the Cable Duct and Fan Subassembly 2-18. . .
2.8 Installing the Fan Subassembly 2-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.9 Installing the Cable Duct 2-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.10 Choosing and Setting up Cabinets with the S7-400 2-23. . . . . . . . . . . . . . . . . .
2.11 Rules for the Arrangement of Modules 2-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.12 Installing Modules in a Rack 2-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.13 Marking the Modules with Slot Labels 2-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.14 Methods of Expansion and Networking 2-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.15 Accessories 2-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Addressing the S7-400 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Geographical and Logical Addresses 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 How to Determine the Default Address of a Module 3-4. . . . . . . . . . . . . . . . . .
3.3 How to Determine the Default Address of a Channel 3-6. . . . . . . . . . . . . . . . .
4 Wiring the S7-400 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 General Rules and Regulations for Operating the S7-400 4-2. . . . . . . . . . . . .
4.2 Supplying Power to Modules 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Choosing the Power Supply Module 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4 Choosing the Load Current Power Supply 4-7. . . . . . . . . . . . . . . . . . . . . . . . . .
4.5 Assembling an S7-400 with Process I/Os 4-8. . . . . . . . . . . . . . . . . . . . . . . . . . .
4.6 Assembling an S7-400 with Grounded Reference Potential (0 V) 4-10. . . . . . .
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xS7-400andM7-400ProgrammableControllers,InstallationManual
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4.7 Assembling an S7-400 with Ungrounded Reference Potential
(Ungrounded Configuration) 4-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8 Assembling an S7-400 with Isolated Modules 4-13. . . . . . . . . . . . . . . . . . . . . . .
4.9 Shielding Cables 4-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.10 Equipotential Bonding 4-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.11 Protection Against Inductive Surge Voltages 4-19. . . . . . . . . . . . . . . . . . . . . . . .
4.12 Grounding 4-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.13 Interference-Free Configuration for Local and Remote Connections 4-23. . . .
4.14 Wiring Rules 4-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.15 Setting the VAC Power Supply Module to the Line Voltage 4-27. . . . . . . . . . . .
4.16 Wiring the Power Supply Module 4-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.17 Wiring the Signal Modules 4-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.18 Wiring the Front Connector, Crimp Snap-On Terminals 4-34. . . . . . . . . . . . . . .
4.19 Wiring the Front Connector, Screw-Type Terminals 4-35. . . . . . . . . . . . . . . . . .
4.20 Wiring the Front Connector, Spring-Type Terminals 4-36. . . . . . . . . . . . . . . . . .
4.21 Fitting the Strain Relief 4-38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.22 Labeling a Front Connector 4-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.23 Fitting the Front Connector 4-41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.24 Interconnecting the CR and ER(s) 4-44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.25 Setting the Fan Subassembly to the Line Voltage and Wiring It 4-46. . . . . . . .
4.26 Routing Cables Using Cable Ducts or Fan Subassemblies 4-47. . . . . . . . . . . .
4.27 Routing Cables Using Fiber-Optic Cables 4-48. . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Networking 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Configuring a Network 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 Fundamentals 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 Rules for Configuring a Network 5-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4 Cable Lengths 5-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5 PROFIBUS-DP Bus Cables 5-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.6 Bus Connectors 5-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.7 RS 485 Repeater 5-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.8 PROFIBUS-DP network with fiber-optic cables 5-25. . . . . . . . . . . . . . . . . . . . . .
5.8.1 Fiber-optic cables 5-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.8.2 Simplex connectors and connector adapter 5-29. . . . . . . . . . . . . . . . . . . . . . . . .
5.8.3 Connecting a fiber-optic cable to the PROFIBUS device 5-31. . . . . . . . . . . . . .
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6 Starting Up 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1 Recommended Procedure for First Startup 6-2. . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Checks Prior to Switching On for the First Time 6-3. . . . . . . . . . . . . . . . . . . . .
6.3 Connecting a Programming Device (PG) to an S7-400 6-5. . . . . . . . . . . . . . .
6.4 Switching On an S7-400 for the First Time 6-6. . . . . . . . . . . . . . . . . . . . . . . . . .
6.5 Resetting the CPU with the Mode Selector Switch 6-7. . . . . . . . . . . . . . . . . . .
6.6 Cold, Warm, and Hot Restarts with the Mode Selector Switch 6-10. . . . . . . . .
6.7 Inserting a Memory Card 6-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.8 Inserting a Backup Battery (Option) 6-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.9 Starting Up a PROFIBUS-DP Subnet 6-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.10 Fitting Memory Cards in the CPU 6-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.11 Installing Interface Submodules (CPU 417 and 417 H) 6-21. . . . . . . . . . . . . . . .
7 Maintenance 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1 Replacing the Backup Battery 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 Replacing a Power Supply Module 7-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3 Replacing CPUs 7-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.4 Replacing Digital or Analog Modules 7-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.5 Changing the Fuses in the Digital Modules 7-9. . . . . . . . . . . . . . . . . . . . . . . . . .
7.6 Replacing Interface Modules 7-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.7 Replacing the Fuse of the Fan Subassembly 7-13. . . . . . . . . . . . . . . . . . . . . . . .
7.8 Replacing Fans in the Fan Subassembly During Operation 7-14. . . . . . . . . . . .
7.9 Replacing the Filter Frame of the Fan Subassembly During Operation 7-16. .
7.10 Replacing the Power Supply PCB and Monitoring PCB of the
Fan Subassembly 7-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 Assembling the M7-400 8-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1 Mechanical Configuration 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2 Addressing the M7-400 Modules 8-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.3 Electrical Configuration 8-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.4 Installing the M7-400 8-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.4.1 Checklist for Installation 8-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.4.2 Module Accessories 8-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.4.3 Fitting Memory Cards in the CPU 8-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.4.4 Installing Interface Submodules 8-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.4.5 Fitting the Short AT Card 8-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.4.6 Assembling Expansion Modules on a Central Rack 8-16. . . . . . . . . . . . . . . . . .
8.4.7 Installing a Module Assembly in the Rack 8-23. . . . . . . . . . . . . . . . . . . . . . . . . . .
8.4.8 Inserting/Removing a Memory Card 8-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.5 Connecting a Module Assembly 8-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents
xii S7-400andM7-400ProgrammableControllers,InstallationManual
C79000-G7076-C424-01
8.6 Assembling an MPI Subnet or PROFIBUS-DP Subnet 8-30. . . . . . . . . . . . . . . .
8.7 Preparing for Operation 8-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.7.1 Connecting the Operator Panels and I/O Devices 8-33. . . . . . . . . . . . . . . . . . . .
8.7.2 Connecting a Programming Device (PG) to the COM Interface 8-36. . . . . . . .
8.7.3 Connecting a Programming Device (PG) to the M7-400 8-39. . . . . . . . . . . . . . .
8.7.4 Connecting a Programming Device (PG) to Two or More Nodes 8-40. . . . . . .
8.7.5 Connecting a Programming Device (PG) to Ungrounded Nodes of an MPI
Subnet 8-43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.7.6 Starting Up a PROFIBUS-DP Subnet 8-44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.7.7 Checking the Status and Error Indicators 8-45. . . . . . . . . . . . . . . . . . . . . . . . . . .
8.8 Replacing Modules and Submodules/Cards 8-46. . . . . . . . . . . . . . . . . . . . . . . . .
8.8.1 Replacing an Interface Module 8-47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.8.2 Replacing the CPU or Expansion Modules of a Module Assembly 8-49. . . . . .
8.8.3 Replacing Memory Cards in a CPU 8-54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.8.4 Replacing a Short AT Card 8-56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A Assembling and Installing Systems A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.1 Principles of System Installation for EMC A-2. . . . . . . . . . . . . . . . . . . . . . . . . . .
A.2 Installation of Programmable Controllers for EMC A-6. . . . . . . . . . . . . . . . . . . .
A.3 Cabling Inside Buildings A-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.4 Cabling Outside Buildings A-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.5 Lightning Protection and Overvoltage Protection A-14. . . . . . . . . . . . . . . . . . . . .
A.5.1 Lightning Protection Zone Concept A-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.5.2 Rules for the Transition between Lightning Protection Zones 0 and 1 A-17. . .
A.5.3 Rules for the Transitions between Lightning Protection Zones
greater than 0 <->1 A-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.5.4 Example Circuit for Surge Protection of Networked S7-400s A-21. . . . . . . . . . .
A.6 Interference-Free Connection of Monitors A-23. . . . . . . . . . . . . . . . . . . . . . . . . . .
B Guidelines for Handling Electrostatically-Sensitive Devices (ESD) B-1. . . . . . . . .
B.1 What is ESD? B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B.2 Electrostatic Charging of Persons B-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B.3 General Protective Measures Against Electrostatic Discharge Damage B-4.
C Siemens Worldwide C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glossary Glossary-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index Index-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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1-1
S7-400andM7-400ProgrammableControllers,InstallationManual
C79000-G7076-C424-01
Product Overview
Overview of the S7-400
The S7-400 is a programmable controller. Almost any automation task can be
implemented with a suitable choice of S7-400 components.
S7-400 modules have a block design for swing-mounting in a rack. Expansion
racks are available to extend the system.
In this chapter, we show you the most important components with which you can
assemble an S7-400.
Features of the S7-400
The S7-400 programmable controller combines all the advantages of the previous
system with those of a new system and new software. These are:
A graded CPU platform
Upwardly-compatible CPUs
Enclosed modules of rugged design
Convenient terminal system for the signal modules
Compact modules with a high component density
Optimum communication and networking facilities
Convenient incorporation of operator interface systems
Software parameter assignment for all modules
Extensive choice of slots
Operation without fans
Multicomputing in the non-segmented rack
1
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Product Overview
1-2 S7-400andM7-400ProgrammableControllers,InstallationManual
C79000-G7076-C424-01
Overview of the M7-400
The SIMATIC S7 programmable controller is extended by the SIMATIC M7
automation computer with its AT-compatible computer functionality. This enables
the SIMATIC user to make use of the open software world, either as an extension
to an S7 programmable controller or as a stand-alone M7 computer system. The
entire SIMATIC S7 range of I/O devices is available to the M7 user.
Features of the M7-400
The M7-400 automation computer is suitable for the following typical tasks:
Process data acquisition
Storage of large volumes of data
Control of local process I/Os
Communication
Closed-loop control, positioning, counting
Operator interface systems.
It offers the following features:
Running of DOS/Windows software available on the market
Free programming (high-level language)
RMOS real-time multitasking operating system
– running of real time-capable software
– event-driven program processing
– multitasking
A standard, short AT card can be plugged in
Multicomputing in the non-segmented rack
Full incorporation in S7-400 systems.
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Product Overview
1-3
S7-400andM7-400ProgrammableControllers,InstallationManual
C79000-G7076-C424-01
Components of an S7-400
The most important components of the S7-400 and their functions are given in the
following tables:
Components Function Illustration
Racks
(UR: Universal Rack)
(CR: Central Rack)
(ER: Expansion Rack)
... provide the mechanical and
electrical connections between
the S7-400 modules.
Power Supply Modules
(PS = Power Supply)
Accessories:
Backup battery
... convert the line voltage
(120/230 VAC or 24 VDC) to the
5 VDC and 24 VDC operating
voltages required to power the
S7-400.
CPUs
Central Processing Units (CPUs) ... execute the user program;
communicate via the multipoint
interface (MPI) with other CPUs
or with a programming device
(PG).
Memory cards ... store the user program and
parameters.
Signal Modules
(SM = Signal Module)
(digital input modules, digital
output modules, analog input
modules, analog output modules)
Accessories:
Front connector with three
different terminal systems
... match the different process
signal levels to the S7-400.
... form the interface between
PLC and process.
Interface modules
(IM = Interface Module)
Accessories:
Connecting cable
Terminator
... interconnect the individual
racks of an S7-400.
Cable ducts ...are used for routing cables and
as ventilation.
PROFIBUS-DP bus cables ...connect CPUs to programming
devices.
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Product Overview
1-4 S7-400andM7-400ProgrammableControllers,InstallationManual
C79000-G7076-C424-01
Components Function Illustration
PG cables ...connect a CPU to a
programming device.
PROFIBUS components
for example, PROFIBUS bus
terminal
... connect the S7-400 to other
S7-400 devices or programming
devices.
RS 485 repeaters ...amplify data signals on bus
lines and links bus segments.
Programming device (PG) or PC
with the STEP 7 software
package
...configures, programs, debugs,
and assigns parameters to the
S7-400.
Fan subassemblies
(for special areas of application) ...ventilates modules in special
cases; can be operated with or
without a filter.
Additional components of the S7-400 such as communications processors,
function modules, etc., are described in separate manuals.
Components of an M7-400
The most important components of the M7-400 and their functions are given in the
following tables:
Components Function Illustration
Central Processing Units (CPUs)
Accessories:
Memory Card
DRAM Cards
... function as AT-compatible
processing units; execute the
user program; communicate via
the MPI with other CPUs or with
a programming device / PC;
serve to accommodate two
interface submodules (IFs).
Application Modules (FMs)
Accessories:
Memory Card
DRAM Cards
On-Board Silicon Disk
... are ISA-compatible processing
units to support the CPU.
(They are described in a
separate manual.)
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Product Overview
1-5
S7-400andM7-400ProgrammableControllers,InstallationManual
C79000-G7076-C424-01
Components IllustrationFunction
Expansion Modules (EXMs) ... serve to accommodate three
interface submodules (IFs).
AT Adapter Modules (ATMs) ... provide a slot for a 16-bit AT
module (up to 164 mm long).
Mass Storage Modules (MSMs) ... serve to store programs and
data on a hard disk (2.5”) or
floppy disk (3.5”).
Interface Submodules (IFs) ... for connecting I/O devices
such as VGA monitor, mouse,
keyboard, printer.
Applicable Modules in the S7-400 Range
The following modules from the S7-400 range can be used with the M7-400:
Power supply modules (PSs)
Function modules (FMs)
Signal modules (SMs)
Interface modules (IMs)
Fan subassemblies
Suitable I/O Devices
The following I/O devices can be connected via the appropriate interface
submodules:
VGA monitor
Keyboard
Mouse
Printer
Sensors and actuators
Distributed I/Os
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Product Overview
1-6 S7-400andM7-400ProgrammableControllers,InstallationManual
C79000-G7076-C424-01
Connecting the M7-400 to a Programming Device / PC
For the remote setup of the M7-400, you can connect a programming device or PC
to the CPU of the M7-400 via a V.24 cable.
A PC/PG cable is used to connect a programming device or PC and CPU of the
M7-400 via the multipoint interface (MPI).
Location of Order Number and Product Version
The order number and product version are printed on every module of the
SIMATIC S7-400/M7-400. The following figure shows their locations on a module.
For the product version, an X is entered instead of the valid number. The following
figure shows a module with Product Version 1.
Product version
Abbreviated order
no.
(6ES7 ...)
Rating plate
Module designation
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Product Overview
1-7
S7-400andM7-400ProgrammableControllers,InstallationManual
C79000-G7076-C424-01
Example of a Rating Plate
SIMATIC M7
Order no.
Module designation
X234567
Product version
APPROVED
CLASS 1 BE4 2
MAX. 1BC
T4
8
Approvals and marks
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Product Overview
1-8 S7-400andM7-400ProgrammableControllers,InstallationManual
C79000-G7076-C424-01
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