jwilcoxson
Member
I'm sure there isn't any official documentation, but is there any resources out there on how to write in OB/FC/FB blocks in to a S7-300 PLC without using programming software? Or rather, is there any official or unofficial documentation on the S7 Ethernet protocol that defines how to read and write to more than just I/Q/M/DB memory? I'm mainly just curious, and since there are a few third party S7 programming tools, I figured there may be something out there.