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Is it possible for a PI tag to be associated with two timestamps?

AaronSlattery

In essence, a client was interested in seeing the disparity in the DCS timestamp (from a computer that is not connected to the internet and is prone to drift) and the timestamp from the PI interface computer. Is this something that's possible, or would this just need to be two different pi tags pulling from the same place on two different interfaces, one with the DCS timestamp and one off the interface's computer?

 

Thanks!

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  • 0 in reply to tflee

    This is probably the best option.

    Alternatively, if you can only “trust” the PI server timestamp assuming it is synched to a time server/DC you could set up your interfaces to rely on the PI server timestamps to ‘stamp’ the data.

    I would create 2 interfaces with 2 separate tags and set the interfaces such that they will reflect the different timestamps (source vs. Interface server) and then simply compare between the two tags.

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