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Trouble updating PIPoints via the PI WebAPI's value stream

Question asked by Arco on May 26, 2020
Latest reply on May 26, 2020 by Arco

Hi all,

 

I am having troubles doing updates on PIPoints via the PI WebAPI's value stream. This has worked in the past so I think it is version related.

 

I am using PI WebAPI 2018 Version 1.11.0.640

 

So for example, when I try an update via following URL:

 

https://piweb.rwe.com/piwebapi/streams/F1AbEB-WoUYZbDkiKAgr3lUJyYQjgYfsqNN6hGaMQBQtmCOLAvKnGRa4Fq1M3iKOmdOBgqwUzkzMEEzNjU1XEJBU1NJU1RcQkFTU0lTVFxCQVNTSVNUXEhFUkRFQ0tFfEFQU09MTA/value

 

WIth payload:

[{"Value":111}]

 

I get the error: The remote server returned an error: (400) Bad Request.

 

When I do the same via the recorded stream, all is fine. So it is not a rights problem.

 

Does anybody have an idea where to look to solve this? Or can anybody reproduce this problem?

 

Regards,

 

Arco Stolk

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