crg_dfg_di (ul_crg)

	status.i4.v = crg_dfg_di(group_id, *num_di, *di_array)

       group_id = C49 group id
       num_di   = number of returned device indices
       di_array = returned array of device indices

	This function returns ACNET status values as follows:

	DBM_OK			access
	DBM_xxx			error in reading database
	CBS_INVARG		file number out of range or null structure
				pointer passed

	This function requires the following include files:

	ul_crg_h:crg_h, acnet_errors_h

	Related functions:

	crg_tecar_c_to_ftn, cnv_time_energy, crg_param_read, crg_read_tuner,
	crg_read_b2min_slope, crg_active_file, crg_tecar_ramp