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Here is everything you need to know about the S7-200 Simulator v4.0. Developed by S7Tools (often credited to I. G. Ivannikov ), this third-party simulator allowed users to run Siemens STEP 7 Micro/WIN programs on a standard PC. Unlike the official Siemens PLCSIM (which did not support the S7-200 series), this tool filled a massive gap for engineers. s7-200 simulator version 4.0 free download
S7-200 Simulator Version 4.0: Is the Free Download Still Available? Disclaimer: This post is for educational and legacy
PLC Tools / Legacy Software