NOP (FB)¶

FUNCTION_BLOCK NOP EXTENDS BaseService

This function block is used for calling the NOP service of a specific instance of a CIP object. This service is normally used for checking whether the adapter is still available in the network.

InOut:

Scope	Name	Type	Comment	Inherited from
Input	xExecute	BOOL	Rising edge: Action starts Falling edge: Resets outputs If a falling edge occurs before the function block has completed its action, the outputs operate in the usual manner and are only reset if either the action is completed or in the event of an error. In this case, the corresponding output values (xDone, xError) are present at the outputs for exactly one cycle.	ETrig
Output	xDone	BOOL	TRUE: Action successfully completed	ETrig
	xBusy	BOOL	TRUE: Function block active	ETrig
	xError	BOOL	TRUE: Error occurred, function block aborts action FALSE: No error	ETrig
Input	itfEtherNetIPDevice	IEtherNetIPService		BaseService
	eClass	CIPClass		BaseService
	dwInstance	DWORD		BaseService
Output	eError	ERROR		BaseService