status.i4.v = gpib_write_c(string.i1a.r, num_chars.i4.v,

	This routine writes a data string to a GPIB device.  Before
	writing the string, a new line character is appended to the
	end of it.  A call to this routine must be preceded by a call
	to gpib_select_c.

	string		data string to send to GPIB device
	num_chars	number of bytes being sent
	gpib_address	device's GPIB address (0-255)
			(This argument is not used for connections made
			 by IP name.)

	This function returns ACNET status values as follows:

	OK			success
	CBS_INVARG		invalid device address
	CBS_NODAT		VME interface device could not be retrieved
				for this GPIB address
	otherwise		GAS error

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	gpib_read_c, gpib_read_binary_c, gpib_select_node_c,
	gpib_select_ip_name_c, gpib_close,gpib_select_c,
	gpib_serial_poll_c, gpib_local_c, gpib_reboot, gpib_clear_c,
	gpib_trigger_c, gpib_get_device_c, gpib_device_info_c,

	C/C++ usage:

	static const char	string[NUM_CHARS+1] = "ID?";
	int	status;
	int	num_chars = NUM_CHARS;
	int	gpib_address = 0;

	status = gpib_write_c(string,num_chars,gpib_address);