2 Replies Latest reply on May 29, 2018 5:52 AM by Tomas Stark

    Error reading system digital state

    Tomas Stark

      Hi,

       

      we have two PI points for which the values are manually entered. Both points currently have only tree values each entered at about the same time period (see screenshots below).

       

      The first one of them will have Digital State "No Data" when referenced to an attribute in PI AF, whereas for the second one the last entered value will be shown.

       

      In Point Builder, the snapshot value will be "Error reading system digital state" for the first point.

       

      Screen shots from Point Builder and Archive Editor for the first point:

       

      180528 Skärmklipp 1.JPG   180528 Skärmklipp 1a.JPG

      Screen shots for the second point:

       

      180528 Skärmklipp 2.JPG  180528 Skärmklipp 2a.JPG

      What could be the trouble?

       

      Regards,

      Tomas