Siemens SIMATIC S5-90U User guide

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SIMATIC S5
S5-90U/S5-95U
Programmable Controller
System Manual
EWA 4NEB 812 6115-02b
Edition 03

STEP ® SINEC ® and SIMATIC ® are registered trademarks of Siemens AG.
LINESTRA® is a registered trademark of the OSRAM Company.
Subject to change without prior notice.
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 created by patent grant or
registration of a utility model or design, are reserved.
Copyright© Siemens AG 1994
EWA 4NEB 812 6115-02b

Introduction
System Description
Installation Guidelines
Start-Up and Program Tests
Diagnostics and Troubleshooting
Technical Description
Integral Real-Time Clock (only in the S5-95U)
Communication via SINEC L1 LAN
Module Spectrum
Addressing and Access to I/Os
Introduction to STEP 5
STEP 5 Operations
Integrated Blocks and Their Functions
Onboard Interrupt Inputs
Onboard Counter Inputs
Analog Value Processing
Function Modules
Index
1
2
3
4
5
6
7
8
9
10
11
12
14
13
15
A/B/C/
D/E/F
16
Appendices
EWA 4NEB 812 6115-02b

EWA 4NEB 812 6115-02b

S5-90U/S5-95U Contents
Contents
Page
How to Use This System Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
1 System Description
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
2 Technical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
2.1 Programmable Controller Design - without External I/Os . . . . . . . . . . . . 2 - 1
2.1.1 Design of the S5-90U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
2.1.2 Design of the S5-95U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 3
2.2 Internal Electrical Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 5
2.2.1 Internal Electrical Configuration of the S5-90U . . . . . . . . . . . . . . . . . . . 2 - 5
2.2.2 Internal Electrical Configuration of the S5-95U . . . . . . . . . . . . . . . . . . . 2 - 6
2.3 Principle of Operation of the PLCs . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 7
2.3.1 Functional Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 7
2.3.2 Peculiarities of the PLCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 10
3 A Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1
3.1 Mounting the PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1
3.2 Mounting the PLCs with External I/Os . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 5
3.2.1 Mounting the S5-90U with External I/Os . . . . . . . . . . . . . . . . . . . . . . . 3 - 5
3.2.2 Mounting the S5-95U with External I/Os . . . . . . . . . . . . . . . . . . . . . . . 3 - 7
3.2.3 How to Plug External I/O Modules into the Bus Units . . . . . . . . . . . . . . 3 - 9
3.2.4 Multi-Tier Expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 11
3.2.5 Cabinet Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 13
3.3 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 15
3.3.1 Connection Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 15
3.3.2 Connecting the Power Supply to the S5-90U . . . . . . . . . . . . . . . . . . . . 3 - 19
3.3.3 Connecting the Power Supply to the S5-95U . . . . . . . . . . . . . . . . . . . . 3 - 19
3.3.4 Connecting the Onboard I/Os of the S5-90U . . . . . . . . . . . . . . . . . . . . 3 - 20
3.3.5 Connecting the Onboard I/Os of the S5-95U . . . . . . . . . . . . . . . . . . . . 3 - 22
3.3.6 Connecting External I/Os . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 24
3.4 Electrical Configuration with External I/Os . . . . . . . . . . . . . . . . . . . . . . 3 - 25
3.4.1 Electrical Configuration of the S5-90U with External I/Os . . . . . . . . . . . . 3 - 25
3.4.2 Electrical Configuration of the S5-95U with External I/Os . . . . . . . . . . . . 3 - 27
3.4.3 Connecting Non-Floating and Floating Modules . . . . . . . . . . . . . . . . . . 3 - 30
EWA 4NEB 812 6115-02b v

Contents S5-90U/S5-95U
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3.5 Wiring Arrangement, Shielding and Measures against
Electromagnetic Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 33
3.5.1 Running Cables Inside and Outside a Cabinet . . . . . . . . . . . . . . . . . . . 3 - 33
3.5.2 Running Cables Outside Buildings . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 34
3.5.3 Equipotential Bonding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 35
3.5.4 Shielding Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 36
3.5.5 Special Measures for Interference-Free Operations . . . . . . . . . . . . . . . 3 - 37
4 Start-Up and Programmer Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1
4.1 Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1
4.1.1 Programmable Controller Operator Panel . . . . . . . . . . . . . . . . . . . . . . . 4 - 1
4.1.2 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 2
4.1.3 Performing an Overall Reset of the Programmable Controller . . . . . . . . 4 - 3
4.2 Starting Up a System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 4
4.2.1 Suggestions for Configuring and Installing the
Programmable Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 4
4.2.2 Steps for Starting Up the Programmable Controller . . . . . . . . . . . . . . . 4 - 5
4.3 Loading the Program into the PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 8
4.3.1 Loading the Program Automatically . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 8
4.3.2 Loading the Program Manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 9
4.4 Saving a Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 10
4.4.1 Saving a Program to a Memory Submodule . . . . . . . . . . . . . . . . . . . . . 4 - 10
4.4.2 Function of the Back-Up Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 11
4.5 Programmer Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 11
4.5.1 Overview of Programmer Functions . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 12
4.5.2 Peculiarities of the Programmer Functions for the
S5-90U and S5-95U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 13
4.5.3 Performance Characteristics When Using the
Programmer Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 13
5 Diagnostics and Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 1
5.1 Diagnostic Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 1
5.2 LED Error Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 3
5.3 Interrupt Analysis Using the Programmer . . . . . . . . . . . . . . . . . . . . . . . 5 - 4
5.3.1 ”ISTACK” Analysis Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 4
5.3.2 Meanings of the ISTACK Displays for Errors Occurring
During Restart and Program Execution . . . . . . . . . . . . . . . . . . . . . . . . 5 - 7
5.3.3 Meanings of the ISTACK Displays in the Case of Errors
During Copying the Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 8
vi EWA 4NEB 812 6115-02b

S5-90U/S5-95U Contents
Page
5.4 Program Errors 5 - 9
5.4.1 Determining an Error Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 9
5.4.2 Program Tracing with the ”BSTACK” Function . . . . . . . . . . . . . . . . . . 5 - 10
5.5 Faults in the External I/Os . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 12
5.6 System Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 13
5.7 The PLC does not Enter the ”RUN” Mode . . . . . . . . . . . . . . . . . . . . . 5 - 13
6 Addressing and Access to I/Os . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1
6.1 Addressing the Onboard I/Os . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1
6.2 Addressing the External I/Os . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 2
6.2.1 Slot Numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 2
6.2.2 Digital Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 5
6.2.3 Analog Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 7
6.2.4 Function Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 8
6.3 Process Image and Access to I/Os . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 9
6.3.1 Access to I/Os During Cyclic Program Execution . . . . . . . . . . . . . . . . . 6 - 11
6.3.2 Access to I/Os During Time-Controlled Program Execution
(for S5-95U only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 13
6.4 Calculating the Scan Time and Response Time . . . . . . . . . . . . . . . . . . 6 - 15
6.5 Start-Up with/without External I/Os and Parameterization
of Internal Timers (S5-95U only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 23
7 Introduction to STEP 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1
7.1 Writing a Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1
7.1.1 Methods of Representation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1
7.1.2 Operand Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 2
7.2 Program Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 3
7.2.1 Linear Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 3
7.2.2 Structured Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 4
EWA 4NEB 812 6115-02b vii

Contents S5-90U/S5-95U
Page
7.3 Block Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 6
7.3.1 Organization Blocks (OBs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 8
7.3.2 Program Blocks (PBs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 10
7.3.3 Sequence Blocks (SBs; only for S5-95U) . . . . . . . . . . . . . . . . . . . . . . 7 - 10
7.3.4 Function Blocks (FBs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 10
7.3.5 Data Blocks (DBs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 15
7.4 Processing Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 17
7.4.1 Changing Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 17
7.4.2 Changing Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 17
7.4.3 Compressing the Program Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 17
7.5 Number Representation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 18
8 STEP 5 Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 1
8.1 Basic Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 1
8.1.1 Boolean Logic Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 2
8.1.2 Set/Reset Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 7
8.1.3 Load and Transfer Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 10
8.1.4 Timer Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 15
8.1.5 Counter Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 25
8.1.6 Comparison Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 30
8.1.7 Arithmetic Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 31
8.1.8 Block Call Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 33
8.1.9 Other Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 38
8.2 Supplementary Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 39
8.2.1 Load Operation (only for the S5-95U) . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 40
8.2.2 Enable Operation (only for the S5-95U) . . . . . . . . . . . . . . . . . . . . . . . . 8 - 41
8.2.3 Bit Test Operations (only for the S5-95U) . . . . . . . . . . . . . . . . . . . . . . 8 - 42
8.2.4 Digital Logic Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 44
8.2.5 Shift Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 48
8.2.6 Conversion Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 50
8.2.7 Decrement/Increment (only for the S5-95U) . . . . . . . . . . . . . . . . . . . . 8 - 52
8.2.8 Disable/Enable Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 53
8.2.9 DO Operation ( only for the S5-95U) . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 54
8.2.10 Jump Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 56
8.2.11 Substitution Operations (only for the S5-95U) . . . . . . . . . . . . . . . . . . . 8 - 58
8.3 System Operations (only for the S5-95U) . . . . . . . . . . . . . . . . . . . . . . 8 - 64
8.3.1 Set Operations (only for the S5-95U) . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 64
8.3.2 Load and Transfer Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 64
8.3.3 Arithmetic Operation (only for the S5-95U) . . . . . . . . . . . . . . . . . . . . . 8 - 67
8.3.4 Other Operations (only for the S5-95U) . . . . . . . . . . . . . . . . . . . . . . . 8 - 68
viii EWA 4NEB 812 6115-02b

S5-90U/S5-95U Contents
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8.4 Condition Code Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 69
8.5 Sample Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 71
8.5.1 Momentary-Contact Relay (Edge Evaluation) . . . . . . . . . . . . . . . . . . . . 8 - 71
8.5.2 Binary Scaler (Binary Divider) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 71
8.5.3 Clock (Clock-Pulse Generator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 73
9 Integrated Blocks and Their Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 1
9.1 Integrated Organization Blocks (OBs) . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 1
9.1.1 Cyclic Program Execution (OB1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 2
9.1.2 Interrupt-Driven Program Execution (OB3) . . . . . . . . . . . . . . . . . . . . . . 9 - 3
9.1.3 Time-Controlled Program Execution (OB13; for S5-95U only) . . . . . . . . 9 - 3
9.1.4 Restart Processing (OB21, OB22) . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 5
9.1.5 Retriggering the Scan Time (OB31; for S5-95U only) . . . . . . . . . . . . . . 9 - 6
9.1.6 Procedure after Battery Failure (OB34; for S5-95U only) . . . . . . . . . . . . 9 - 7
9.1.7 OB251 PID Algorithm (for S5-95U only) . . . . . . . . . . . . . . . . . . . . . . . 9 - 8
9.2 Integrated Function Blocks (FBs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 20
9.2.1 Code Converter : B4 - FB240 - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 20
9.2.2 Code Converter : 16 - FB 241- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 21
9.2.3 Multiplier : 16 - FB242 - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 22
9.2.4 Divider : 16 - FB243 - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 23
9.2.5 Reading of Analog Values (FB250) . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 24
9.2.6 Output of Analog Values (FB251) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 24
9.3 Integrated Sequence Block 2 (SB2) . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 24
9.4 Integrated Data Block 1 (DB1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 25
9.4.1 Parameter Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 26
9.4.2 Rules to Observe When Generating DB1 . . . . . . . . . . . . . . . . . . . . . . 9 - 27
9.4.3 Transferring DB1 Parameters to the Programmable Controller . . . . . . . 9 - 30
9.4.4 Procedure for Parameterizing the PLC . . . . . . . . . . . . . . . . . . . . . . . . 9 - 30
9.4.5 How to Recognize and Correct Parameter Errors . . . . . . . . . . . . . . . . . 9 - 31
10 Onboard Interrupt Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 1
10.1 Setting Parameters for Interrupt Inputs in DB1 . . . . . . . . . . . . . . . . . . . 10 - 1
10.2 Interrogating the Cause for an Interrupt in the Diagnostic Byte . . . . . . . . 10 - 2
10.3 Interrupt Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 4
10.4 Calculating Interrupt Reaction Times . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 7
EWA 4NEB 812 6115-02b ix

Contents S5-90U/S5-95U
Page
11 Onboard Counter Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 1
11.1 Setting Parameters for Counter Inputs in DB1 . . . . . . . . . . . . . . . . . . . 11 - 3
11.2 Programming the Reaction to Interrupts in OB3 . . . . . . . . . . . . . . . . . . 11 - 4
11.3 Scanning the Actual Counter Status . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 5
11.4 Entering the Comparison Value and Resetting the Counter . . . . . . . . . . 11 - 5
11.5 Cascading Counters (with the S5-95U only) . . . . . . . . . . . . . . . . . . . . . 11 - 7
11.6 Calculating the Counter Frequency Limit . . . . . . . . . . . . . . . . . . . . . . . 11 - 9
12 Analog Value Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 1
12.1 Reading in Analog Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 2
12.1.1 General Representation of Analog Input Values . . . . . . . . . . . . . . . . . . 12 - 3
12.1.2 Reading in and Scaling an Analog Value -FB250- . . . . . . . . . . . . . . . . 12 - 5
12.1.3 Time Required for Reading and Accuracy of the Analog Value
Read in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 7
12.1.4 Using Analog Inputs of the S5-95U as Additional Digital Inputs . . . . . . . 12 - 8
12.2 Output of Analog Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 9
12.2.1 General Representation of Analog Output Values . . . . . . . . . . . . . . . . . 12 - 9
12.2.2 Outputting Analog Values -FB251- . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 10
12.2.3 Time Required for Output and Accuracy of the Analog Value
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 12
12.3 Example: Analog Value Processing with FB250 and FB251 . . . . . . . . . . 12 - 14
13 Integral Real-Time Clock (only in the S5-95U) . . . . . . . . . . . . . . . . . . . . . 13 - 1
13.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 1
13.2 Structure of the Clock Data Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 2
13.3 Structure of the Status Word and How to Scan it . . . . . . . . . . . . . . . . . 13 - 5
13.4 Backup of the Hardware Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 7
x EWA 4NEB 812 6115-02b

S5-90U/S5-95U Contents
Page
13.5 Setting Parameters in DB1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 8
13.5.1 Setting the Clock in DB1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 10
13.5.2 Setting the Prompt Time in DB1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 10
13.5.3 Setting the Operating Hours Counter in DB1 . . . . . . . . . . . . . . . . . . . . 13 - 11
13.5.4 Entering the Clock Time Correction Factor in DB1 . . . . . . . . . . . . . . . . 13 - 11
13.6 Programming the Integral Real-Time Clock in the User Program . . . . . . 13 - 12
13.6.1 Reading and Setting the Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 12
13.6.2 Programming the Prompt Function . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 16
13.6.3 Programming the Operating Hours Counter . . . . . . . . . . . . . . . . . . . . . 13 - 21
13.6.4 Entering the Clock Time Correction Factor . . . . . . . . . . . . . . . . . . . . . 13-26
14 Communication via SINEC L1 LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 1
14.1 Connection of the Programmable Controllers to the L1 Bus Cable . . . . . 14 - 1
14.2 Basic Principle of Data Interchange . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 2
14.3 Parameterization of the PLC for Data Interchange in DB1 . . . . . . . . . . . 14 - 3
14.4 Sending Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 5
14.5 Receiving Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 7
14.6 Program Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 9
15 Module Spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 1
15.1 General Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 3
15.2 Power Supply Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 4
15.3 Bus Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 6
15.4 Interface Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 8
15.5 Digital Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 11
15.5.1 Digital Input Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 13
15.5.2 Digital Output Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 23
15.5.3 Digital Input/Output Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 34
15.6 Analog Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 36
15.6.1 Analog Input Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 37
15.6.2 Analog Output Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 92
EWA 4NEB 812 6115-02b xi

Contents S5-90U/S5-95U
Page
16 Function Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 - 1
16.1 Comparator Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -1
16.2 Timer Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -4
16.3 Simulator and Simulator Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -7
16.3.1 Simulator only for the S5-90U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -7
16.3.2 Simulator Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -8
16.4 Diagnostic Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -10
16.5 Counter Module 2×0 to 500 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -13
16.6 Counter Module 25/500 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -18
16.6.1 Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -21
16.6.2 Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -26
16.6.3 Functional Description of the Counter Mode . . . . . . . . . . . . . . . . . . . . 16 -28
16.6.4 Functional Description of the Position Decoder . . . . . . . . . . . . . . . . . . 16 -30
16.6.5 Entering New Setpoints for the Counter and
Position Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -39
16.6.6 Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -40
16.7 IP 262 Closed-Loop Control Module . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -42
16.8 IP 263 Positioning Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -46
16.9 IP 264 Electronic Cam Controller Module . . . . . . . . . . . . . . . . . . . . . . 16 -50
16.10 IP 265 High Speed Sub Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -53
16.11 IP 266 Positioning Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 -53
16.12 IP 267 Stepper Motor Control Module . . . . . . . . . . . . . . . . . . . . . . . . . 16 -56
16.13 CP 521 SI Communications Processor . . . . . . . . . . . . . . . . . . . . . . . . 16-63
16.14 CP 521 BASIC Communications Module . . . . . . . . . . . . . . . . . . . . . . 16-66
xii EWA 4NEB 812 6115-02b

S5-90U/S5-95U Contents
Page
Appendices
A Operations List, Machine Code and List of Abbreviations . . . . . . . . . . . . . A - 1
A.1 Operations List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A - 1
A.1.1 Basic Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A - 1
A.1.2 Supplementary Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A - 8
A.1.3 System Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A - 13
A.1.4 Evaluation of CC 1 and CC 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A - 14
A.2 Machine Code Listing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A - 15
A.3 List of Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A - 18
B Technical Specifications, DB1 Parameters, RAM Address Assignment . . . B - 1
B.1 Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B - 1
B.1.1 General Technical Specifications S5-90U and S5-95U . . . . . . . . . . . . . B - 1
B.1.2 Technical Specifications S5-90U . . . . . . . . . . . . . . . . . . . . . . . . . . . . B - 2
B.1.3 Technical Specifications S5-95U . . . . . . . . . . . . . . . . . . . . . . . . . . . . B - 3
B.2 DB1 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B - 5
B.2.1 DB1 Parameters of S5-90U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B - 5
B.2.2 DB1 Parameters of S5-95U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B - 6
B.3 RAM Address Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B - 8
B.3.1 RAM Address Assignment in the S5-90U . . . . . . . . . . . . . . . . . . . . . . B - 8
B.3.2 RAM Address Assignment in the S5-95U . . . . . . . . . . . . . . . . . . . . . . B - 10
C Dimension Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C - 1
D Active and Passive Faults in Automation Equipment/
Guidelines for Handling Electrocstatic Sensitive Devices (ESD) . . . . . . . . . D - 1
E Information for Ordering Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E - 1
F Reference Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F - 1
Index
EWA 4NEB 812 6115-02b xiii

EWA 4NEB 812 6115-02b

S5-90U/S5-95U How to Use This System Manual
How to Use This System Manual
The S5-90U and S5-95U are programmable controllers for lower and medium performance ranges.
They meet all the requirements for a modern programmable controller. To use these controllers
optimally, you need detailed information.
In this system manual we have attempted to present this information as completely and as well
organized as possible.
This How to Use This System Manual section gives you information that will make it easier for you
to find what you need. This section explains how the manual is organized.
Contents of This System Manual
• Hardware Description (Chapters 1, 2, and 3)
These chapters describe the controllers: how they fit into the SIMATIC® S5 family of
programmable controllers, how they function, and how you install them.
• Start-Up Information (Chapters 4, 5, and 6)
These chapters summarize the information you need to start up your programmable controller.
• The Programming Language of the Programmable Controllers (Chapters 7, 8, and 9)
These chapters describe the structure, operations, and structuring aids of the STEP® 5 pro-
gramming language.
• Functions of the Programmable Controllers (Chapters 10, 11, 12, 13, and 14)
Each of these chapters contains a complete description of a particular function, from wiring to
programming. Subjects include analog value processing, counter and interrupt inputs, integral
clock, and the programmable controller as a SINEC® L1 slave.
• Module Spectrum (Chapters 15 and 16)
These chapters contain information about all the currently available S5-100U modules that you
can use to expand your controller. Chapter 16, Function Modules, includes the modules that
require an extensive description (i.e., more than just technical specifications).
• Overviews (Appendices)
In these chapters you will find not only a complete list of operations but also the technical
specifications of the PLCs, RAM address assignments, system data assignments, dimension
drawings, a description of errors that may occur during operation of the programmable controller,
maintenance and repair procedures, guidelines for handling electrostatic sensitive devices, a list
of accessories, and reference literature about programmable controllers.
You will find correction pages at the end of the system manual. Use them to indicate any
corrections, additions, or suggestions for improvement you might have. Send these suggestions to
us. They will help us to improve the next edition of this system manual.
EWA 4NEB 812 6115-02b xv

How to Use This System Manual S5-90U/S5-95U
Conventions
This system manual is organized in menu form to make it easier for you to find information. This
means the following:
• Each chapter is marked with printed tabs.
• At the front of the system manual is an overview page that lists the title of each chapter.
Following this page, you will find a table of contents.
• At the beginning of each chapter is a table of contents for that chapter.
Each chapter has three level headings that are numbered. The fourth level heading is not
numbered but appears in boldface type.
• Pages, figures, and tables are numbered separately for each chapter. On the back of the table
of contents for each chapter you will find a list of the figures and tables that appear in that
chapter.
This system manual employs the following specific structuring devices:
• Specific terms have characteristic abbreviations (e.g., OP for operator panel).
Appendix A contains a list of abbreviations.
• Footnotes are marked with a raised number (e.g., ”1”) or a raised asterisk (”*”). You will find
the corresponding explanations in the lower margin of the page or under a figure or table if the
footnote appears in one of these.
Lists are designated with bullets (• as in this particular listing) or with hyphens (-).
Procedures are marked with black triangles ( ) and must be performed in the sequence
presented.
• Cross references are indicated as follows: ”(see Section 7.3.2)”. There are no references to
specific page numbers.
• Dimensions in drawings are indicated in millimeters and inches.
• Value ranges are indicated as follows: 17 to 21.
• Especially important information appears in framed boxes such as the following:
!
Warning
You will find definitions for the terms ”Warning,” ”Danger,” ”Caution,” and ”Note” in the Safety-
Related Guidelines for the User at the end of the introduction.
xvi EWA 4NEB 812 6115-02b

S5-90U/S5-95U How to Use This System Manual
Scope of the S5-90U/S5-95U System Manual
The S5-90U/S5-95U System Manual is valid for the following programmable controllers:
• S5-90U from Order No. 6ES5 090-8MA01, Edition 02
• S5-95U from Order No. 6ES5 095-8MA04, Edition 01
• S5-95U from Order No. 6ES5 095-8MB03, Edition 01
• S5-95U from Order No. 6ES5 095-8MC02, Edition 01
• S5-95U from Order No. 6ES5 095-8MD02, Edition 01
The Manuals listed below are required for starting up the S5-90U and the various versions of the
S5-95U programmable controller.
Programmable Controller Manuals Required for Start-Up
S5-90U
Order No. 6ES5 090-8MA01
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a
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a
a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a
a
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a
a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a
a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
• S5-90U/S5-95U System Manual,
Order No. 6ES5 998-8MA22
S5-95U (basic unit),
Order No. 6ES5 095-8MA04 • S5-90U/S5-95U System Manual, Order No. 6ES5 998-8MA22
S5-95U, SINEC L2 Interface,
Order No. 6ES5 095-8MB03 • S5-90U/S5-95U System Manual, Order No. 6ES6 998-8MA22
• SINEC L2 Interface of the S5-95U Manual,
Order No. 6ES5 998-8MB22
S5-95U, Second Serial Interface,
Order No. 6ES5 095-8MC02 • S5-90U/S5-95U System Manual, Order No. 6ES5 998-8MA22
• Second Serial Interface of the S5-95U Manual
Order No. 6ES5 998-8MC21
S5-95U, SINEC L2-DP Interface,
Order No. 6ES5 095-8MD02 • S5-90U/S5-95U System Manual, Order No. 6ES5 998-8MA22
• SINEC L2-DP Interface of the S5-95U Manual,
Order No. 6ES5 998-8MD21
Training
Siemens offers a wide range of training courses for SIMATIC S5 users.
Contact your Siemens representative for more information.
EWA 4NEB 812 6115-02b xvii

How to Use This System Manual S5-90U/S5-95U
Safety-Related Guidelines for the User
This document provides the information required for the intended use of the particular product. The
documentation is written for technically qualified personnel.
Qualified personnel as referred to in the safety guidelines in this document as well as on the product
itself are defined as follows.
• System planning and design engineers who are familiar with the safety concepts of automation
equipment.
• Operating personnel who have been trained to work with automation equipment and are
conversant with the contents of the document in as far as it is connected with the actual
operation of the plant.
• Commissioning and service personnel who are trained to repair such automation equipment and
who are authorized to energize, de-energize, clear, ground, and tag circuits, equipment, and
systems in accordance with established safety practice.
Danger Notices
The notices and guidelines that follow are intended to ensure personal safety, as well as protect the
products and connected equipment against damage.
The safety notices and warnings for protection against loss of life (the users or service personnel) or
for protection against damage to property are highlighted in this document by the terms and
pictograms defined here. The terms used in this document and marked on the equipment itself have
the following significance.
Warning
indicates that death, severe personal injury or
substantial property damage can result if
proper precautions are not taken.
Caution
indicates that minor personal injury or
property damage can result if proper
precautions are not taken.
Note
contains important information about the
product, its operation or a part of the doc-
ument to which special attention is drawn.
Danger
indicates that death, severe personal injury
or substantial property damage will result if
proper precautions are not taken.
Proper Usage
Warning
• The equipment/system or the system components may only be used for the
applications described in the catalog or the technical description, and only in
combination with the equipment, components, and devices of other manu-
facturers as far as this is recommended or permitted by Siemens.
• The product will function correctly and safely only if it is transported, stored, set
up, and installed as intended, and operated and maintained with care.
xviii EWA 4NEB 812 6115-02b