S7Plus subscription stops responding after no connection with PLS

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etmKnut
Posts: 7
Joined: Tue Dec 11, 2018 8:14 am

S7Plus subscription stops responding after no connection with PLS

Post by etmKnut »

Hi!

We encountered an issue where multiple subscriptions stopped working after a power outage. The server was connected to an UPS so it was not affected by this.

Restarting the project and/or managers did not help in this manner. We had to manully disable and enable subscriptions to make them retrieve data from the PLC correctly again.

Do you know what might cause this?

Are we limited by a max. number of datapoints in a subscription?
As per day we have dedicated one subscription per "objecttype" (motor, valve, etc).
Everything works fine when it's up and running. Haven't had the issue before after an ordinary server or driver restart.

Best regards

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