• For functional testing of the generated SIMATIC S7 user blocks on a programming device or PC, independent of the availability of the target hardware
• Shifts the detection and correction of programming errors to an early stage of development
• Enables an accelerated and cost-effective initial commissioning and enhances the program quality
• Can be used for LAD, FBD, STL, S7-GRAPH, S7-HiGraph, S7-SCL, CFC, S7-PDIAG, WinCC (local installation)

Licensing

• S7-PLCSIM is an integral part of the STEP 7 Professional software package or is available as a stand-alone software product
• S7-PLCSIM V5.4 is delivered with a floating license. The floating license allows installation of the software on any number of computers. This means one user per license can use the software independently of the computer used or from a specific workstation. The number of existing licenses determines the number of computers on which the software can be used simultaneously.
• An upgrade to version 5.4 is offered for users of the previous versions.
• A separate update service can be purchased for S7-PLCSIM.
• A trial license valid for 14 days is available for download from Industry Online Support: https://support.industry.siemens.com/cs/document/109750064

You can find more information on the Software Update Service, license types, online software delivery and handling your SW licenses with the Automation License Manager:

http://www.siemens.com/simatic-licenses