We have two profibus loop connected to S7-400 plc. Sometimes communication of the loop disconnects for a second and comes back. Because of this all the motors stoppes. On the hardware diagnose it always shows several DP slave station failure. That' why we don't know exactly where is the problem. An example of the failure is as below:
DP master system ID:3
DP slave input address:16291
Base address of DP master:16372
OB number:86
DP slave station number:100
External error, incoming event
Anybody advice anything how can we find where the problem is wellcome.
Thanks ...
apesky
DP master system ID:3
DP slave input address:16291
Base address of DP master:16372
OB number:86
DP slave station number:100
External error, incoming event
Anybody advice anything how can we find where the problem is wellcome.
Thanks ...
apesky