Error code if xError [...] or in the event of an error [...] xDone , xError )
or in the event of an error [...] (xDone, xError [...] : Function block active xError
) MQTT_ERROR (Enum [...] _VERSION (Enum) V5 MQTT_REASON_CODE
_IEC_RESULT Error code ERR
_IEC_RESULT Pointer to the error code. ERR
_CERT_ … error codes