What error did you have in the module diagnostics buffer? I used S7-1200 CPU firmware V4.3 and when I tried to add communication or signal module to CPU, I got this error: "error in lower level component". I'm working on a university project (Università della Svizzera Italiana in Lugano). Can't attach a screenshot here.
Schneider Electric FAQ | Attachments unavailable https://www.se.com/us/en/faqs/home https://proessays.org
... View more