S7-PLCSIM - Testing Your S7-CPU Programs - manual.pdf - English - Buziol_1969

S7-

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PLCSIM V5.4

Introduction

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Product overview

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Getting Started

SIMATIC

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Simulation Tasks

Engineering Tools

S7-PLCSIM V5.4

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View objects

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Error and Interrupt OBs

Operating Manual

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Reference information

07/2011

A5E00992424-03

Legal information

Warning notice system

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

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

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

graded according to the degree of danger.

Legal information

DANGER

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

WARNING

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

CAUTION

with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.

CAUTION

without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.

NOTICE

indicates that an unintended result or situation can occur if the relevant information is not taken into account.

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

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

property damage.

Qualified Personnel

The product/system described in this documentation may be operated only by personnel qualified for the specific

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

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

avoiding potential hazards when working with these products/systems.

Proper use of Siemens products

Note the following:

WARNING

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

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

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

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

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

Trademarks

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

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

Disclaimer of Liability

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

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

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

editions.

Siemens AG

Industry Sector

Postfach 48 48

90026 NÜRNBERG

GERMANY

A5E00992424-03

Ⓟ 05/2011

Technical data subject to change

Table of contents

Introduction................................................................................................................................................ 7

Product overview....................................................................................................................................... 9

2.1

Functional scope............................................................................................................................ 9

2.2

Differences from a "real" PLC...................................................................................................... 10

2.3

Simulation view window............................................................................................................... 13

2.4

Memory areas.............................................................................................................................. 14

2.5

Blocks........................................................................................................................................... 15

2.5.1

Organization blocks (OBs)........................................................................................................... 15

2.5.2

System function blocks (SFBs).................................................................................................... 16

2.5.3

System Functions (SFCs)............................................................................................................ 17

Getting Started ........................................................................................................................................ 19

3.1

Start simulation ............................................................................................................................ 19

3.2

Setting the PG/PC interface......................................................................................................... 21

3.3

Multi-instance with S7-PLCSIM ................................................................................................... 23

3.3.1

Selecting the type of connection.................................................................................................. 24

3.3.2

Supported communication blocks................................................................................................ 24

3.4

Downloading a STEP 7 project.................................................................................................... 25

3.5

Simulation and monitoring ........................................................................................................... 26

3.6

Monitoring program simulation in STEP 7................................................................................... 27

3.7

Using Help.................................................................................................................................... 28

Simulation Tasks ..................................................................................................................................... 29

4.1

Attach Symbols............................................................................................................................ 29

4.2

What Is the Difference between a .PLC File and a .LAY File?.................................................... 30

4.3

Save a simulated PLC ................................................................................................................. 31

4.4

Save Layout Command ............................................................................................................... 32

4.5

Open the simulated PLC.............................................................................................................. 33

4.6

Open Layout Command............................................................................................................... 34

4.7

Select scan mode ........................................................................................................................ 35

4.8

Changing the CPU operating mode............................................................................................. 36

4.9

Simulating a STEP 7 user program ............................................................................................. 37

4.10

Slider Control ............................................................................................................................... 38

4.11

Debugging a program.................................................................................................................. 39

4.12

Using error OBs in your program................................................................................................. 40

S7-PLCSIM V5.4

Operating Manual, 07/2011, A5E00992424-03

Table of contents

4.13

Resetting the CPU memory ........................................................................................................ 41

4.14

Reset Timers............................................................................................................................... 42

4.15

Turning power on/off for a simulated CPU.................................................................................. 42

4.16

Using Symbolic Addressing ........................................................................................................ 43

4.17

Record/Playback......................................................................................................................... 44

4.18

Monitor cycle time ....................................................................................................................... 47

4.19

Close simulated PLC................................................................................................................... 48

4.20

Close Layout ............................................................................................................................... 48

4.21

End a simulation.......................................................................................................................... 49

4.22

Simulating T-CPU ....................................................................................................................... 50

View objects ............................................................................................................................................ 51

5.1

CPU View Object ........................................................................................................................ 52

5.1.1

CPU Operating Mode Switch Positions ...................................................................................... 52

5.1.2

CPU Indicators............................................................................................................................ 53

5.2

ACCUs & Status Word View Object............................................................................................ 53

5.3

Block Regs View Object.............................................................................................................. 54

5.4

Nesting Stacks View Object........................................................................................................ 54

5.5

Input Variable View Object.......................................................................................................... 55

5.6

Output Variable View Object....................................................................................................... 56

5.7

Bit Memory View Object.............................................................................................................. 57

5.8

Timer View Object....................................................................................................................... 57

5.9

Counter View Object................................................................................................................... 58

5.10

Generic View Object ................................................................................................................... 58

5.11

Vertical Bits Variable View Object............................................................................................... 59

Error and Interrupt OBs ........................................................................................................................... 61

6.1

Logical base addresses .............................................................................................................. 62

6.2

Hardware Interrupt (OB40-OB47)............................................................................................... 63

6.3

I/O Redundancy Error (OB70) .................................................................................................... 64

6.4

CPU redundancy error (OB72) ................................................................................................... 65

6.5

Communication Redundancy Error (OB73)................................................................................ 67

6.6

Time Error (OB80)....................................................................................................................... 67

6.7

Diagnostic interrupt (OB82)......................................................................................................... 68

6.8

Insert/Remove Module Interrupt (OB83)..................................................................................... 69

6.9

Priority Class Error (OB85) ......................................................................................................... 70

6.10

Rack Failure (OB86) ................................................................................................................... 71

S7-PLCSIM V5.4

Operating Manual, 07/2011, A5E00992424-03

Table of contents

Reference information ............................................................................................................................. 73

7.1

Icons and menu commands......................................................................................................... 73

7.2

S7-PLCSIM Numeric Data Formats............................................................................................. 76

7.3

Troubleshooting Tips ................................................................................................................... 77

Index........................................................................................................................................................ 79

S7-PLCSIM V5.4

Operating Manual, 07/2011, A5E00992424-03

S7-PLCSIM - Testing Your S7-CPU Programs - manual.pdf

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