An error in AF SDK

Discussion created by hsuzuki on Jun 8, 2011
Latest reply on Jun 10, 2011 by hanyong



A customer has had an error in AF SDK like below.


2011-06-06 13:55:29,920 [9] DEBUG -                     ClsAiAFLogic.GetAttributeValue:                                      Return : [OSIsoft.AF.Asset.DataReference.TagException: Cannot retrieve PI Point 'TM001.VTM' for attribute 'Meas\MeasurementValue\AnalogValue\AnalogValue|value'.
   場所 OSIsoft.AF.Asset.DataReference.PIBaseDR.CheckBaseConfig()
   場所 OSIsoft.AF.Asset.DataReference.PIPointDR.CheckConfig()
   場所 OSIsoft.AF.Asset.DataReference.PIBaseDR.GetValue(Object context, Object timeContextArg, AFAttributeList inputAttributes, AFValues inputValues)
   場所 OSIsoft.AF.Asset.AFAttribute.GetValueFromDataReference(AFCase caseContext, Object timeContext, AFAttributeList inputAttributes, AFValues inputValues, UOM desiredUOM) 場所 c:\Dev\AF\AF 2.1 Release\Sources\SDK\Asset\AFAttribute.Value.cs:行 1487]


I can see this element in the PI System Explore and the value of PI Point is also displayed properly like below, but I don't know why this error was shown.












Thanks you in advance for your help.