5 Replies Latest reply on Jul 23, 2018 5:19 PM by Rick Davin

How can I use PIPoint. SetAttribute for timestemp?

Noya Jul 22, 2018 3:55 PM

I am trying to set a new value to a point's attribute of Timestemp type, but I seem to set the value uncorrectly since the value is set to 0. More specifically, I am trying to set "creationdate" attribute value by using PIPoint.SetAttribute("creationdate", new AFTime(new DateTime( 2018,7,19,2,4,0)), but the attribute value is not set. It is set to zero instead. What Am I doing wrong?

Re: How can I use PIPoint. SetAttribute for timestemp?

Dan Fishman Jul 22, 2018 4:29 PM (in response to Noya)

You cannot set the creation date attribute because that point attribute is set by the PI Data Historian at the time the point is initially created.
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- Re: How can I use PIPoint. SetAttribute for timestemp?
  
  Noya Jul 22, 2018 4:36 PM (in response to Dan Fishman)
  
  Hi Dan,
  I set the "creationdate" attribute as an example, what about other
  timestemp type attributes? How can I set them?
  
  בתאריך 22 ביולי 2018 7:30 אחה״צ, "Dan Fishman" <pisquare@osisoft.com> כתב:
  
  PI Square <https://pisquare.osisoft.com/?et=watches.email.thread>
  Re: How can I use PIPoint. SetAttribute for timestemp?
  
  reply from Dan Fishman
  <https://pisquare.osisoft.com/people/DanFishman?et=watches.email.thread>
  in PI .NET Framework (PI AF SDK) - View the full discussion
  <https://pisquare.osisoft.com/message/118407-re-how-can-i-use-pipoint-setattribute-for-timestemp?et=watches.email.thread#comment-118407>
  
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- Re: How can I use PIPoint. SetAttribute for timestemp?
  
  Noya Jul 22, 2018 4:41 PM (in response to Dan Fishman)
  
  Or is it true for all timestemp attributes, and non of them are
  modifiable?
  
  בתאריך 22 ביולי 2018 7:35 אחה״צ, <noga001@gmail.com> כתב:
  
  Hi Dan,
  I set the "creationdate" attribute as an example, what about other
  timestemp type attributes? How can I set them?
  
  בתאריך 22 ביולי 2018 7:30 אחה״צ, "Dan Fishman" <pisquare@osisoft.com>
  כתב:
  
  >> PI Square <https://pisquare.osisoft.com/?et=watches.email.thread>
  >> Re: How can I use PIPoint. SetAttribute for timestemp?
  >>
  >> reply from Dan Fishman
  >> <https://pisquare.osisoft.com/people/DanFishman?et=watches.email.thread>
  >> in PI .NET Framework (PI AF SDK) - View the full discussion
  >> <https://pisquare.osisoft.com/message/118407-re-how-can-i-use-pipoint-setattribute-for-timestemp?et=watches.email.thread#comment-118407>
  >>
  
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  - Re: How can I use PIPoint. SetAttribute for timestemp?
    
    Dan Fishman Jul 23, 2018 4:58 AM (in response to Noya)
    
    You can't set them since they are set by the server.
    
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  - Re: How can I use PIPoint. SetAttribute for timestemp?
    
    Rick Davin Jul 23, 2018 5:19 PM (in response to Noya)
    
    As Dan Fishman stated, these particular point attributes are system-assigned and cannot be changed. See this link for more.
    
    For the larger topic of any and all point attributes, see this link.
    
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