Specify callback function to execute when error event occurs
You configure ErrorFcn to execute a callback function when an error event occurs.
An error event is generated when a timeout occurs. A timeout occurs if a read or write operation does not successfully complete within the time specified by the Timeout property. An error event is not generated for configuration errors such as setting an invalid property value.
If the RecordStatus property value is on, and an error event occurs, the record file records this information:
The event type as Error
The error message
The time the event occurred using the format day-month-year hour:minute:second:millisecond
To learn how to create a callback function, refer to Creating and Executing Callback Functions.