ReceiveWatchdog (FB)

FUNCTION_BLOCK ReceiveWatchdog EXTENDS CBM.LTrig

This function block monitors the reception of a specific parameter group (itfParameterGroup). xError becomes TRUE if there is no reception after tTimeout else function block stays in busy state.

InOut:

Scope	Name	Type	Comment	Inherited from
Input	xEnable	BOOL	TRUE: Action starts FALSE: Action stops, outputs xDone, xBusy, xError are resetted	LTrig
Output	xDone	BOOL	TRUE: Action successfully completed	LTrig
	xBusy	BOOL	TRUE: Function block active	LTrig
	xError	BOOL	TRUE: Error occurred, function block aborts action FALSE: No error	LTrig
Input	itfParameterGroup	IReceiveParameterGroup	parameter group to be monitored
Input	tTimeout	TIME	monitoring time: t#0ms = infinite timeout (no timeout monitoring)
Output	eError	ERROR	detailed error information if xError is TRUE.
Output	xReceived	BOOL	TRUE: parameter group was received in previous cycle.