Hi everebody,

I'm facing an issue in communicating S7-400 and ET200SP .I've managed to ping ET200SP's address with latency 2~3 ms but in Online HW Config the communication isn't established.

NB: This communication goes very well between tow S7-400 PLCS (Latency 2ms).

NB: Attached file describes the communication status.

Closed cause question posted twice.

The second thread with the subject Problem in communicating ET200M and my PLC with Ubiquiti is published within the conference Decentral Peripherie.