Hello all,

I am trying to establish a connection between my WinCC V7.5 SP1 and CPU 1515F-2PN but no luck.

I had the same problem before with another plc , when I put a lower version it works. But for CPU 1515F-2PN I can't change the version, as I am using 6ES7515-2FN03-0AB0.

Does WinCC V7.5 SP1 Only works with versions less than 3?

Thanks in advance

Hello,

Perhaps this link might help:

Connecting older HMI to S7-1500/1200 with newer firmware

Best regards,

Wizard