Tutorial plcsim

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User Manual

Edition: 08/2007

Copyright and Safety Guidelines
This manual contains notices which you should observe to ensure your own personal safety, as well as to protect the product and connected equipment. These notices are highlighted in the manual by a warning triangle and are marked as follows according to the level of danger:
Danger Indicates animminently hazardous situation that, if not avoided, will result in death or serious injury.

Warning Indicates a potentially hazardous situation that, if not avoided, could result in death or severe injury.

Caution Used with the safety alert symbol indicates a potentially hazardous situation that, if not avoided, may result in minor or moderate injury. Caution Used without the safety alert symbolindicates a potentially hazardous situation that, if not avoided, may result in property damage. Notice Used without the safety alert symbol indicates a potential situation that, if not avoided, may result in an undesirable result or state.

Qualified Personnel
The device/system may only be set up and operated in conjunction with this manual. Only qualified personnel should be allowed toinstall and work on this equipment. Qualified persons are defined as persons who are authorized to commission, to ground, and to tag circuits, equipment, and systems in accordance with established safety practices and standards.

Correct Usage
Note the following: Caution This device and its components may only be used for the applications described in the catalog or the technical descriptions andonly in connection with devices or components from other manufacturers that have been approved or recommended by Siemens. This product can only function correctly and safely if it is transported, stored, set up, and installed correctly, and operated and maintained as recommended.

Siemens® and SIMATIC® are registered trademarks of SIEMENS AG. STEP 7™ and S7™are trademarks of SIEMENS AG.
CopyrightSiemens AG, 2007 All rights 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 created by patent grant or registration of a utility model or design, are reserved. Disclaimer of Liability We have checked the contents of this manual for agreement withthe hardware and software described. Because deviations cannot be precluded entirely, we cannot guarantee full agreement. However, the data in this manual are reviewed regularly and any necessary corrections included in subsequent editions. Suggestions for improvement are welcomed.


Siemens AG Automation and Drives Postfach 4848, D-90327 Nuernberg

© Siemens AG 2007
Technicaldata subject to change.

S7-PLCSIM allows you to simulate the operation of an S7 programmable logic controller. You can test control programs with S7-PLCSIM without connecting to S7 hardware. S7-PLCSIM provides a graphical user interface for viewing and modifying control program variables, running the simulated PLC in single or continuous scan mode, and changing the operating mode of thesimulated controller. S7-PLCSIM also includes a COM object called S7ProSim that provides programmatic access to a simulated PLC. With S7ProSim, you can write software to perform such tasks as changing the keyswitch position of the simulated PLC, stepping through the control program a scan at a time, reading or writing controller values, and many other tasks. S7ProSim is not documented within thescope of this S7-PLCSIM online help system and manual. The S7ProSim online help system and PDF document the usage of S7ProSim. Audience This manual is intended for engineers, programmers, and maintenance personnel who have knowledge and experience with S7 programmable logic controllers and STEP 7 programming. Scope This document describes the features and the operation of S7-PLCSIM V5.4. Other...
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