Hello! I am sharing a working apllication where X20 PLC data shared between S7-300 PLC. Thank you all for help!
X201584toS7300.zip (285.6 KB)
PS:The only thing missing is to make it work also to S7-1200, which is currently not working, although connection is established. So, if there is someone who would make an idea why not, I would appreciate the hints.