#PLC_Sim
PLC_Sim is a Siemens S7-300 PLC simulator, emulator software cooperating with TIA Portal. This program support only basic Ladder Logic Symbols and can be used with TCP/IP interface. It was tested with Tia Portal v.13.
This application allow you create your own simulation user interface with digital IO. Additionally this program have virtual system which allows run virtual process. This can be used to check the correct of the program for PLC. PLC_Sim contain only one virtual process but it can be expanded by adding new ones.
Link to video: https://www.youtube.com/watch?v=7CdFdmGZoxg