1 Reply Latest reply on Jun 4, 2012 12:49 AM by hanyong

    System.__ComObject is coming as value of digital tag

    sandeep.narang

      Hi Team

       

       

       

      We are using following piece of code to fetch the values of PI tags.

       
      Array EVP = this.eventPipe.TakeAll();
                          if (EVP.Length > 0)
                          {
                              foreach (Object _obj in EVP)
                              {
                                  EO = _obj as PIEventObject;
                                  _ptValue = (PointValue)EO.EventData;
                                  _value = _ptValue.PIValue;
                                  if (_value.Value is DigitalState)
                                  {
      
                                       log.Debug("Received at " + _ptValue.PIValue.TimeStamp.LocalDate.ToString("MM/dd/yyyy hh:mm:ss.fff") + ", Group Name : " + this._groupName + ", Event: " + _ptValue.PIPoint.Name + ", " + ((DigitalState)_value.Value).Name + ", Filter Passed : " + filterPassed.ToString() +", ServerName="+this.serverPath );
                                                                     
                                  }
                                  else
                                  {
                                         log.Debug("Received at " + _ptValue.PIValue.TimeStamp.LocalDate.ToString("MM/dd/yyyy hh:mm:ss.fff") + ", Group Name : " + this._groupName + ", Event: " + _ptValue.PIPoint.Name + ", " + Convert.ToString(_value.Value) + ", Filter Passed : " + filterPassed.ToString() + ", ServerName=" + this.serverPath);
                                      
                                  }
                              }
      }
      

       The issue is that we are getting the value as "System.__ComObject" when we try to get the value of a digital tag using '((DigitalState)_value.Value).Name'

       

       

       

      Please correct me if I am doing anything wrong.

       

       

       

      Thanks and Regards

       

      Sachin