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Thread: Time Stamp Issue in Alarms and Events List

  1. #1
    Join Date
    04.09.2009
    Posts
    84

    Default Time Stamp Issue in Alarms and Events List

    Hi Support,

    I have defined Events and Alarms on the 61850 Boolean Variables in Zenon Energy Edition 6.51. The time that is shown in 'time received' column of AML and CEL is advanced by 3 hours for some devices and 10 hours for some other 61850 devices (as compared to the time shown in the devices, which is same for all of them). For example, in one of the device, the time is 3 p.m but in the time received column of CEL, it is appearing 6 p.m.

    Can you kindly help how to troubleshoot this issue? I believe that the issue is on the device end, not in Zenon. But just to confirm, is there anything I need to care in Zenon for these erroneous results?

    Thanks and Regards

  2. #2
    Join Date
    01.07.2008
    Location
    Salzburg, AT
    Posts
    1,031

    Default Re: Time Stamp Issue in Alarms and Events List

    it is for sure an issue on the devices. In the IEC61850 protocoll all time stamps - t-attributs - are sent as UNIX time - seconds since 1.1.1970. Therefore there is no time zome information in */t. Thus what you see in zenon project - in CEL/AML/Historian - it is exactly what the IED is sending.

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