The S7?PLCSIM software used for simulation of SIMATIC PCS 7 automation systems when debugging CFC/SFC user programs can be integrated into the engineering system, i.e. into the configuration environment of SIMATIC PCS 7. The version cycle of S7?PLCSIM is asynchronous to the version cycle of SIMATIC PCS 7.

S7-PLCSIM as of V5.4+SP5 is compatible with SIMATIC PCS 7 V8.1 and V8.2.

With the compatibility tool on the Internet you can determine which S7-PLCSIM versions are suitable for the various SIMATIC PCS 7 versions:

https://support.industry.siemens.com/cs/ww/en/view/64847781