status.i4.v = td_cancel(list_id.i4.r)

	This routine cancels a device list previously built with
	td_build(_c).  This removes the associated data from the
	DPM and TD datapools.  

	list_id		ID returned from call to td_build(_c)

	This function returns ACNET status values as follows:

	OK			success
	DIO_CANFAIL		list does not exist

	This function requires the following include files:

	diolib_h, acnet_errors_h

	Related functions:

	td_build(_c), td_read, td_set(_c), td_query, td_extract_list_status_c

	C/C++ usage:

	int	status;
	int	list_id;

	status = td_cancel(&list_id);