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  9. Getting all Zero Values after Kepware Server restarted after demo period

Getting all Zero Values after Kepware Server restarted after demo period

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31 Jul 2015 12:59 #3474 by support
Replied by support on topic Getting all Zero Values after Kepware Server restarted after demo period
Are you sure you were truly getting zero values, and not an error (in which case there is *no* valid value, timestamp or quality, not even a zero). With ReadMultipleItems method, an error would be indicated by a non-null .Exception property in any/all of the result objects returned by the method.

Maybe you can post the piece of code that call the read and interprets the outcome?

Thank you

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31 Jul 2015 11:09 #3472 by pankaj
Getting all Zero Values after Kepware Server restarted after demo period was created by pankaj
We have a Window Service, which connects to "Kepware Server" and perform various operations (subscribe/read/ Write tags).

In our testing we have noticed that the if the kepware server we are using is on a 2 hour demo time period. once the demo period expired, we started getting bad quality values, which is understood.

However when we restarted Kepware, we started getting all 0 values from "ReadMultipleItems" functions for all tags. All good quality data but 0 values. When we re-started our service, only then we started getting proper values. It is desired behavior or do we need to subscribe again to get valid values ?

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  9. Getting all Zero Values after Kepware Server restarted after demo period
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