Error messages

User-specific compensation errors

Besides the standard transformation errors, the user can issue user-defined errors for some methods (e.g. error ID 123) by using the function return value (0 = OK).

HRESULT CToolRadiusComp::CalculationTrcPath(PTcCncToolRadiusCompParam trc){

  if (…)

    return 123; // raise error

…

  return S_OK;

}

Error messages in TcCncUsersEvents.xml

In the event of an error, the user-defined return value of the method can be transferred to the error message evaluation via the PLC or the TwinCAT Event Logger, see also FCT-M7: TwinCAT3 error output.
Error messages must be supplemented in the corresponding language in the XML error message file. (C:\TwinCAT\3.1\Target\Resource):

<Event>

  <Id>123</Id>

  <Message LcId="1033">Online tool radius compensation: error 123</Message>

  <Message LcId="1031">Online tool radius compensation: Error 123</Message>

</Event>

The error is output by the Event Logger.