Siemens SIMATIC S5-100U User manual

SIMATIC S5
S5-100U
Programmable Controller
System Manual
CPU 100/102/103
EWA 4NEB 812 6120-02a

STEP ® SINEC ® and SIMATIC ® are registered trademarks of Siemens AG.
LINESTRA® is a registered trademark of the OSRAM Company. IBM® is a
registered trademark of the International Business Machines Corporation.
Copyright© Siemens AG 1992
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.
EWA 4NEB 812 6120-02

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Introduction
The SIMATIC S5 System Family
Installation Guidelines
Start-Up and Program Tests
Diagnostics and Troubleshooting
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Technical Description
13
Addressing
Introduction to STEP 5
STEP 5 Operations
Integrated Blocks and Their Functions
Interrupt Processing, for CPU 103 Version 8MA02 and Higher
Analog Value Processing
The Integral Real-Time Clock, for CPU 103 Version 8MA02 and Higher
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Connecting the S5-100U to SINEC L1, for CPU 102 and Higher
Module Spectrum
Function Modules
Appendices
Index
A/B/C
D/E/F
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EWA 4NEB 812 6120-02

S5-100U Contents
Contents
Page
How to Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 The SIMATIC S5 System Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1
2 Technical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
2.1 Programmable Controller Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
2.2 Principle of Operation for the Programmable Controller . . . . . . . . . . . . . . 2 - 3
2.2.1 Functional Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 3
2.2.2 Mode of Operation for the External I/O Bus . . . . . . . . . . . . . . . . . . . . . . 2 - 6
3 Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1
3.1 Installing S5-100U Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1
3.1.1 Assembling a Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1
3.1.2 Multi-Tier Expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 5
3.1.3 Cabinet Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 7
3.1.4 Vertical Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 8
3.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 9
3.2.1 Connection Methods: Screw-Type Terminals and Crimp Snap-in . . . . . . 3 - 9
3.2.2 Connecting the Power Supply to the S5-100U . . . . . . . . . . . . . . . . . . . . 3 - 12
3.2.3 Connecting Digital Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 13
3.2.4 Connecting the Digital Input/Output Module . . . . . . . . . . . . . . . . . . . . . . 3 - 18
3.3 Electrical Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 20
3.3.1 Electrical Configuration for the S5-100U . . . . . . . . . . . . . . . . . . . . . . . . 3 - 20
3.3.2 Electrical Configuration with External I/Os . . . . . . . . . . . . . . . . . . . . . . . 3 - 21
3.3.3 Non-Floating and Floating Configurations . . . . . . . . . . . . . . . . . . . . . . . . 3 - 25
3.4 Wiring Arrangement, Shielding, and Measures to
Guard against Electromagnetic Interference . . . . . . . . . . . . . . . . . . . . . . 3 - 29
3.4.1 Wiring Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 29
3.4.2 Shielding of Devices and Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 31
3.4.3 Measures to Guard against Electromagnetic Interference . . . . . . . . . . . . 3 - 32
3.5 Protective Devices and Insulation Monitoring Devices . . . . . . . . . . . . . . . 3 - 36
EWA 4NEB 812 6120-02 v

Contents S5-100U
Page
4 Start-Up and Program Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1
4.1 Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1
4.1.1 CPU Operator Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1
4.1.2 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1
4.1.3 Performing an Overall Reset on the Programmable Controller . . . . . . . . . 4 - 2
4.2 Starting Up a System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 3
4.2.1 Suggestions for Configuring and Installing the Product . . . . . . . . . . . . . . 4 - 3
4.2.2 Procedures for Starting Up the Programmable Controller . . . . . . . . . . . . 4 - 4
4.3 Loading the Program into the Programmable Controller . . . . . . . . . . . . . . 4 - 5
4.4 Backing Up the Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 7
4.4.1 Backing Up the Program on a Memory Submodule . . . . . . . . . . . . . . . . 4 - 7
4.4.2 Function of the Back-Up Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 8
4.5 Program-Dependent Signal Status Display “STATUS” . . . . . . . . . . . . . . 4 - 8
4.6 Direct Signal Status Display “STATUS VAR” . . . . . . . . . . . . . . . . . . . . . 4 - 9
4.7 Forcing Outputs, “FORCE”, for CPU 103 and Higher . . . . . . . . . . . . . . . 4 - 10
4.8 Forcing Variables, “FORCE VAR” . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 10
4.9 Search Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 11
4.10 Program Check, for CPU 103 and Higher . . . . . . . . . . . . . . . . . . . . . . . 4 - 11
5 Diagnostics and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 1
5.1 Indication of Errors by LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 1
5.2 CPU Malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 1
5.2.1 “ISTACK” Analysis Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 1
5.2.2 Interrupt Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 5
5.2.3 Errors during Program Copying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 6
5.2.4 Explanation of the Mnemonics Used in “ISTACK” . . . . . . . . . . . . . . . . . 5 - 7
5.3 Program Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 9
5.3.1 Locating the Error Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 9
5.3.2 Tracing the Program with the “BSTACK” Function . . . . . . . . . . . . . . . . . 5 - 12
5.4 I/O Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 14
5.5 System Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 14
5.6 The Last Resort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 15
vi EWA 4NEB 812 6120-02

S5-100U Contents
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6 Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1
6.1 Slot Numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1
6.2 Digital Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 4
6.3 Analog Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 5
6.4 Combined Input Modules and Output Modules . . . . . . . . . . . . . . . . . . . . 6 - 6
6.4.1 Output Modules with Error Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 6
6.4.2 Digital Input/Output Module, 16 Inputs, 16 Outputs, 24 V DC
for All CPUs Version 8MA02 and Higher and
for CPU 102, Version 8MA01, Revision 5 and Higher . . . . . . . . . . . . . . . 6 - 7
6.4.3 Function Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 7
6.5 The Structure of Process Image Input and Output Tables . . . . . . . . . . . . 6 - 8
6.5.1 Accessing the Process Image Input Table (PII) . . . . . . . . . . . . . . . . . . . 6 - 10
6.5.2 Accessing the Process Image Output Table (PIQ) . . . . . . . . . . . . . . . . . 6 - 11
6.6 Interrupt Process Images Tables and Time-Controlled Program
Processing in OB13 for CPU 103, Version 8MA02 and Higher . . . . . . . . . 6 - 12
6.6.1 Accessing the Interrupt PII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 12
6.6.2 Accessing the Interrupt PIQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 14
6.7 RAM Address Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 15
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 - 3
7.1.3 Circuit Diagram Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 3
7.2 Program Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 4
7.2.1 Linear Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 4
7.2.2 Structured Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 5
7.3 Block Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 7
7.3.1 Organization Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 9
7.3.2 Program Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 11
7.3.3 Sequence Blocks, for CPU 103 and Higher . . . . . . . . . . . . . . . . . . . . . 7 - 11
7.3.4 Function Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 11
7.3.5 Data Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 16
7.4 Program Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 18
7.4.1 Program Processing with CPU 102 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 19
7.4.2 START-UP Program Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 24
7.4.3 Cyclic Program Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 26
7.4.4 Time-Controlled Program Processing, for CPU 103
Version 8MA02 and Higher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 28
EWA 4NEB 812 6120-02 vii

Contents S5-100U
Page
7.4.5 Interrupt-Driven Program Processing, for CPU 103
Version 8MA02 and Higher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 29
7.5 Processing Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 30
7.5.1 Changing Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 30
7.5.2 Changing Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 30
7.5.3 Compressing the Program Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 30
7.6 Number Representation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 31
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, for CPU 103 and Higher . . . . . . . . . . . . . . . . . . . . . . . 8 - 40
8.2.2 Enable Operation, for CPU 103 and Higher . . . . . . . . . . . . . . . . . . . . . . 8 - 41
8.2.3 Bit Test Operations, for CPU 103 and Higher . . . . . . . . . . . . . . . . . . . . . 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, for CPU 103 and Higher . . . . . . . . . . . . . . . . . . . 8 - 52
8.2.8 Disable/Enable Interrupt, for CPU 103 Version 8MA02 and Higher . . . . . . 8 - 53
8.2.9 “DO” Operation, for CPU 103 and Higher . . . . . . . . . . . . . . . . . . . . . . . 8 - 54
8.2.10 Jump Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 56
8.2.11 Substitution Operations, for CPU 103 and Higher . . . . . . . . . . . . . . . . . . 8 - 58
8.3 System Operations, for CPU 103 and Higher . . . . . . . . . . . . . . . . . . . . . 8 - 64
8.3.1 Set Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 64
8.3.2 Load and Transfer Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 64
8.3.3 Arithmetic Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 67
8.3.4 Other Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 68
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
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S5-100U Contents
Page
9 Integrated Blocks and Their Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 1
9.1 Assigning Internal Functions to DB1,
for CPU 103 Version 8MA03 and Higher . . . . . . . . . . . . . . . . . . . . . . . . 9 - 1
9.1.1 Configuration and Default Settings for DB1 . . . . . . . . . . . . . . . . . . . . . . 9 - 1
9.1.2 Setting the Address for the Parameter Error Code in DB1 . . . . . . . . . . . . 9 - 2
9.1.3 Assigning Parameters in DB1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 4
9.1.4 Rules for Setting Parameters in DB1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 4
9.1.5 How to Recognize and Correct Parameter Errors . . . . . . . . . . . . . . . . . . 9 - 6
9.1.6 Transferring DB1 Parameters to the Programmable Controller . . . . . . . . . 9 - 9
9.1.7 Reference Guide for Setting Parameters in DB1 . . . . . . . . . . . . . . . . . . 9 - 10
9.1.8 Defining System Characteristics in DB1 . . . . . . . . . . . . . . . . . . . . . . . . 9 - 11
9.2 Integrated Function Blocks,
for CPU 102 Version 8MA02 and Higher . . . . . . . . . . . . . . . . . . . . . . . . 9 - 11
9.2.1 Code Converter : B4 - FB240 - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 12
9.2.2 Code Converter : 16 - FB241 - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 12
9.2.3 Multiplier : 16 - FB242 - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 13
9.2.4 Divider : 16 - FB243 - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 13
9.2.5 Analog Value Conditioning Modules FB250 and FB251 . . . . . . . . . . . . . . 9 - 14
9.3 Integrated Organization Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 14
9.3.1 Scan Time Triggering OB31, for CPU 103 and Higher . . . . . . . . . . . . . . 9 - 14
9.3.2 Battery Failure OB34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 14
9.3.3 OB251 PID Algorithm,
for CPU 103 Version 8MA02 and Higher . . . . . . . . . . . . . . . . . . . . . . . . 9 - 15
10 Interrupt Processing, for CPU 103 Version 8MA02 and Higher . . . . . . . . . . 10 - 1
10.1 Interrupt Processing with OB2, for CPU 103
Version 8MA02 and Higher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 1
10.2 Calculating Interrupt Reaction Times . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 5
11 Analog Value Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 1
11.1 Analog Input Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 1
11.2 Connecting Current and Voltage Sensors to Analog
Input Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 1
11.2.1 Voltage Measurement with Isolated or
Non-Isolated Thermocouples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 2
11.2.2 Two-Wire Connection of Voltage Sensors . . . . . . . . . . . . . . . . . . . . . . 11 - 3
11.2.3 Two-Wire Connection of Current Sensors . . . . . . . . . . . . . . . . . . . . . . 11 - 4
11.2.4 Connection of Two-Wire and Four-Wire Transducers . . . . . . . . . . . . . . 11 - 4
11.2.5 Connection of Resistance Thermometers . . . . . . . . . . . . . . . . . . . . . . 11 - 6
11.3 Start-Up of Analog Input Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 7
11.4 Analog Value Representation of Analog Input Modules . . . . . . . . . . . . . 11 - 11
EWA 4NEB 812 6120-02 ix

Contents S5-100U
Page
11.5 Analog Output Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 19
11.5.1 Connection of Loads to Analog Output Modules . . . . . . . . . . . . . . . . . . 11 - 19
11.5.2 Analog Value Representation of Analog Output Modules . . . . . . . . . . . . 11 - 20
11.6 Analog Value Conversion: Function Blocks FB250 and FB251 . . . . . . . . 11 - 22
11.6.1 Reading in and Scaling an Analog Value - FB250 - . . . . . . . . . . . . . . . . 11 - 22
11.6.2 Outputting of Analog Values - FB251 - . . . . . . . . . . . . . . . . . . . . . . . . 11 - 25
12 The Integral Real-Time Clock, for CPU 103 Version 8MA02 and Higher . . . 12 - 1
12.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 1
12.2 Setting Parameters in DB1, for CPU 103 Version 8MA03
and Higher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 2
12.2.1 Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 2
12.2.2 Reading the Current Clock Time and the Current Date . . . . . . . . . . . . . 12 - 3
12.2.3 DB1 Parameters Used for the Integral Real-Time Clock . . . . . . . . . . . . 12 - 4
12.3 Programming the Integral Real-Time Clock in DB1,
for CPU 103 Version 8MA03 and Higher . . . . . . . . . . . . . . . . . . . . . . . 12 - 5
12.3.1 Setting the Clock in DB1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 5
12.3.2 Setting the Prompt Time in DB1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 6
12.3.3 Setting the Operating Hours Counter in DB1 . . . . . . . . . . . . . . . . . . . . 12 - 7
12.3.4 Entering the Clock Time Correction Factor in DB1 . . . . . . . . . . . . . . . . 12 - 7
12.4 Structure of the Clock Data Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 8
12.5 Structure of the Status Word and How to Scan It . . . . . . . . . . . . . . . . . 12 - 12
12.6 Setting Parameters for the Clock Data Area and the Status Word
in the System Data Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 15
12.7 Programming the Integral Real-Time Clock in the
User Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 21
12.7.1 Reading and Setting the Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 21
12.7.2 Programming the Prompt Function . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 25
12.7.3 Programming the Operating Hours Counter . . . . . . . . . . . . . . . . . . . . . 12 - 30
12.7.4 Entering the Clock Time Correction Factor . . . . . . . . . . . . . . . . . . . . . 12 - 35
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S5-100U Contents
Page
13 Connecting the S5-100U to SINEC L1, for CPU 102 and Higher . . . . . . . . . 13 - 1
13.1 Connecting the Programmable Controllers to the
L1 Bus Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 1
13.2 Setting Parameters in the Programmable Controller
for Exchanging Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 1
13.2.1 How to Program in a Function Block, for CPU 102 and Higher . . . . . . . 13 - 2
13.2.2 Setting Parameters in DB1, for CPU 103 and Higher . . . . . . . . . . . . . . 13 - 5
13.3 Coordinating Data Exchange in the Control Program . . . . . . . . . . . . . . . 13 - 7
13.3.1 Sending Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 8
13.3.2 Receiving Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 9
13.3.3 Programming the Messages in a Function Block . . . . . . . . . . . . . . . . . 13 - 11
14 Module Spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 1
14.1 General Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 1
14.2 Power Supply Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 2
14.3 Central Processing Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 4
14.4 Bus Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 7
14.5 Interface Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 11
14.6 Digital Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 13
14.6.1 Digital Input Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 13
14.6.2 Digital Output Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 22
14.6.3 Digital Input/Output Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 32
14.7 Analog Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 34
14.7.1 Analog Input Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 34
14.7.2 Analog Output Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 52
15 Function Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 1
15.1 Comparator Module 2×1 to 20 mA/0.5 to 10 V . . . . . . . . . . . . . . . . . . 15 - 1
15.2 Timer Module 2×0.3 to 300 s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 4
15.3 Simulator Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 7
15.4 Diagnostic Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 9
EWA 4NEB 812 6120-02 xi

Contents S5-100U
Page
15.5 Counter Module 2×0 to 500 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 12
15.6 Counter Module 25/500 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 17
15.6.1 Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 20
15.6.2 Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 25
15.6.3 Functional Description of the Counter Mode . . . . . . . . . . . . . . . . . . . . 15 - 27
15.6.4 Functional Description of the Position Decoder . . . . . . . . . . . . . . . . . . 15 - 29
15.6.5 Entering New Setpoints for the Counter and
Position Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 38
15.6.6 Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 39
15.7 Closed-Loop Control Module IP 262 . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 41
15.8 Positioning Module IP 266 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 45
15.9 Stepper Motor Control Module IP 267 . . . . . . . . . . . . . . . . . . . . . . . . 15 - 49
15.10 Communications Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 52
15.10.1 Printer Communications Module CP 521 . . . . . . . . . . . . . . . . . . . . . . 15 - 52
15.10.2 Communications Module CP 521 BASIC . . . . . . . . . . . . . . . . . . . . . . 15 - 55
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, for CPU 102 and Higher . . . . . . . . . . . . . . . . . . . . . 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 Dimension Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B - 1
C Active and Passive Faults in Automation Equipment . . . . . . . . . . . . . . . . . . C - 1
D Information for Ordering Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D - 1
E Reference Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E - 1
F Siemens Addresses Worldwide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F - 1
Index
xii EWA 4NEB 812 6120-02

S5-100U How to Use This System Manual
How to Use This System Manual
The S5-100U is a programmable controller for lower and intermediate performance ranges. It meets
all the requirements for a modern programmable controller. To use this controller optimally, you
need detailed information.
In this system manual we have attempted to present this information as completely and as well
organized as possible. Certain information is repeated in various chapters so that you do not have
to leaf through the manual to find what you need.
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.
These chapters describe how the hardware and software influence each other.
• 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)
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 14 and 15)
These chapters contain information about all the currently available S5-100U modules that you
can use to expand your controller. Chapter 15, 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 dimension
drawings, a description of errors that may occur during operation of the programmable controller,
maintenance and repair procedures, 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 6120-02 xiii

How to Use This System Manual S5-100U
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., programmer is PG).
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 (-).
• 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 or 17-21.
• 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.
xiv EWA 4NEB 812 6120-02

S5-100U How to Use This System Manual
Changes Made to the Second Edition of the S5-100U System Manual
(Order Number: 6ES5 998-0UB22)
S5-100U System Manual (Order Number 6ES5 998-0UB23) has been completely revised:
• The format was adapted to the other system manuals in the SIMATIC S5 family.
• The contents were updated and reorganized.
Some of the functions of CPU 103 have been expanded:
• The default settings (default parameters) for DB1 have been integrated into CPU 103
version 8MA03. This feature makes it easier for you to use the internal CPU functions.
The following chapters were included or completely revised in the system manual:
- Chapter 9 “Integrated Blocks and Their Functions”
- Chapter 12 “Integral Real-Time Clock, for CPU 103 Version 8MA02 and Higher”
- Chapter 13 “Connecting the S5-100U to SINEC L1, for CPU 102 and Higher”
The S5-100U system has been expanded to include an additional module:
• The “Communications Module CP 521 BASIC” is described in section 15.10.2.
Training
Siemens offers a wide range of training courses for SIMATIC S5 users. Contact your Siemens
representative for more information.
EWA 4NEB 812 6120-02 xv

How to Use This System Manual S5-100U
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.
xvi EWA 4NEB 812 6120-02

1 The SIMATIC S5 System Family
EWA 4NEB 812 6120-02

Figures
1-1 Members of the SIMATIC S5 System Family . . . . . . . . . . . . . . . . . . . . . . 1 - 1
EWA 4NEB 812 6120-02

S5-1OOU
The S/MATIC S5 System Family
1 The SIMATIC S5 System Family
The programmable controllers (PLCS) in the SIMATIC S5 family offer economical solutions to simple
control tasks and to complex computer functions.
Figure 1-1. Members of the SIMATIC S5 System Family
The
S5-1 OOU programmable controller is one of the smallest and most economical of the program-
mable controllers in the SIMATIC S5 family. The
S5-1 OOU is especially suited for small automation
tasks. It is economical to use these programmable controllers if you want to replace more than five
control relays.
EWA 4NEB 8126120-02
—
1-1

The SIMATIC S5 System Family S5-100U
The S5-100U has the following features:
• Modular Design
Depending on the CPU you use, the S5-100U allows you to have a maximum of 256 digital
inputs and outputs. It is suitable for machine control and for process automation and monitoring
on a medium scale. The S5-100U allows a broad expansion capability with various types of
modules to adapt optimally to a control task.
• Rugged, Lightweight Design
All of the modules you can use with the S5-100U are block-type modules that are small, rugged,
and easy to use. The modules operate without fans. None of these modules has electro-
magnetically sensitive electronics. The modules are plugged into bus units and screwed tightly
so that they are vibration-proof.
The bus units snap onto a standard mounting rail. You can configure the S5-100U in one or
more tiers and configure it vertically or horizontally. The S5-100U offers such a wide range of
configuration possibilities that you can use it in rough and difficult operating conditions.
• Simple Programming
The programming language is STEP 5 and its comprehensive operations set. It provides three
different methods of representation, - four, if you have a CPU 103 or higher.
You can use any of the U series programmers to program your S5-100U, or you can load
programs from memory submodules.
1-2 EWA 4NEB 812 6120-02

2 Technical Description
2.1 Programmable Controller Design . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
2.2 Principle of Operation for the Programmable Controller . . . . . . . . . 2 - 3
2.2.1 Functional Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 3
2.2.2 Mode of Operation for the External I/O Bus . . . . . . . . . . . . . . . . . 2 - 6
EWA 4NEB 812 6120-02