Xantrex Technology GPIB-XPD “Accumulated Status, Status, and Fault Registers” on page, Operation

Operation

Command Reference

Command	Description
TRG	Implements programmed voltage and current settings which had been in
	hold mode. The supply operates with previous values until the TRG (trigger)
	command is sent.
UNMASK <mnemonics>	Enables you to select the supply operating conditions that you are most
	interested in monitoring for fault occurrence. Mnemonics describing the
	conditions are separated from each other by commas, and may be sent in
	any order.
	Specifying one or more mnemonics which describe the conditions (or the
	decimal equivalent of their total bit weight) enables the selected conditions
	to set bits in the supply’s fault and status registers during operation. A bit is
	set in the fault register when the corresponding bit in the status register
	changes from 0 to 1 and the corresponding bit in the mask register is 1. See
	“Accumulated Status, Status, and Fault Registers” on page 46.
	Mnemonics: CV, CC, OV, OT, SD, FOLD, ERR, PON, REM, ACF, OPF,
	SNSP, ALL, NONE
	Initial value: UNMASK NONE
UNMASK?	Asks for the supply's fault conditions which are currently enabled
	(unmasked).
	Response: UNMASK <fault mask> where fault mask is the decimal
	equivalent of the total bit weights for the operating conditions as listed in the
	status and fault registers See “Accumulated Status, Status, and Fault
	Registers” on page 46.
VDATA <Vlo>,<Vhi>	Calculates and records the slope and offset for programmed voltage using
	VLO and VHI data. Set CMODE ON before using this command. See also
	the calibration procedures in Section 4.
	<Vlo> and <Vhi> are in <voltage> format.
VHI	In response to this command, the power supply sends a programmed
	voltage value to the output terminal. This value is at the high end of the
	power supply’s voltage range and is read by an external device connected
	as part of the calibration procedure. Refer to this value as VHI and record it
	to use as input with the VDATA command. Set CMODE ON before using
	this command. See also the calibration procedures in Section 4.
VLO	In response to this command, the power supply sends a programmed
	voltage value to the output terminal. This value is at the low end of the
	power supply’s voltage range and is read by an external voltmeter
	connected as part of the calibration procedure. Refer to this value as VLO
	and record it to use as input with the VDATA command. Set CMODE ON
	before using this command. See also the calibration procedures in
	Section 4.

44 Operating Manual for GPIB for XPD Series Power Supply