Hi,

On various S7 system we are getting intermittent Profibus DP communication errors, that last for only a second or so. Of course the best solution is to resolve the root cause of the problem, but we also want to put in a timer of a few seconds to effectively bridge over these short communication errors. How can this be done? We need a solution that is works for both inputs and outputs.

Thanks

Ross Umbers

Hi,

I'm considering increasing the Bus Parameters Watchdog time to 2-3 seconds. Will this achieve what I'm after?

Thanks

Ross Umbers

Hi,

The Step 7 help says that the slaves use the watchdog time to reset outputs after a bus failure.

Does the master also use the watchdog time to reset the inputs after a bus failure? If not, how can the master timeout be set?

Thanks

Ross Umbers

Closed cause question posted twice.

The second thread with the subject Coms Error Timer is published within the conference Decentral Peripherie.

Best regards
Min_Moderator