Input Description

EN   BOOL \    (enable)

Block processing is activated with a FALSE -> TRUE edge at input EN. The Function Block is processed, if the value at input CLASS is valid. Otherwise, if the input value is not valid, processing is aborted and a corresponding error is displayed at output ERR/ERNO. Block processing is completed, if output DONE changes to TRUE. During job processing, state changes at input EN are recognized but not evaluated.

CLASS   BYTE \    (class)

At input “CLASS”, the error class to be read is specified.

Valid range: 1…4