Corrected from:
PLC Designer V3.21
Response of the new version:
When logging onto a Lenze controller or i950 servo inverter, the error message described below does not appear.
When logging on to a Lenze controller or Servo Inverter i950, the error message appears:
The object reference was not an instance of an object.
Under what conditions does the behaviour occur?
This behaviour occurs in rare cases after an existing connection with a Lenze controller or i950 Servo Inverter has been interrupted due to a device restart and the connection is then re-established.
Affected products:
PLC Designer V3.0 and higher
Short-term measures:
Confirm the error message with <OK>. You can then reestablish the connection.
Evaluation/Recommendations:
The functional restriction only leads to minor impairments, since it occurs only rarely (probability of occurrence approx. 1%) and can be remedied by confirming the message.
Automartic Translation
