dio_array_device_on_c

	status.i4.v = dio_array_device_on_c(device_index.i4.v,
					    num_elements.i4.v,
					    start_element.i4.v)

	This routine sends an "on" command to an array device.

	device_index	device to control
	num_elements	number of array elements to control
	start_element	first element to control (starts at 0)

	This function returns ACNET status values as follows:

	OK			success
	DIO_NOATT		on command does not exist for this device
	DIO_SETDIS		DIO settings are disabled
	DIO_INVDEV		not a valid array device
	DIO_BADARG		invalid number of elements or starting element
	DBM_xxx			database access error
	DPM_xxx			datapool access error

	This function requires the following include files:

	diolib_h, acnet_errors_h

	Related functions:

	dio_array_device_off_c, dio_array_device_reset_c,
	dio_array_device_positive_c, dio_array_device_negative_c, dio_on,
	dio_on_lst, dio_cntrl_dev(_c), dio_off, dio_reset

	C/C++ usage:

	int	status;
	int	device_index = 14430;
	int	num_elements = 1;
	int	start_element = 0;

	status = dio_array_device_on_c(device_index,num_elements,
				       start_element);