Xantrex Technology RS232-XPD manual Status, and Fault Registers” on page, Operation, Command

	Operation
	Command Reference
Command	Description
STS?	Asks for the supply’s present status register. Status conditions are stored in
	the status register. Each bit represents a separate condition. When the
	condition is true, the corresponding bit is 1 (true). Bits remain set in the
	status register as long as the condition is true. See “Accumulated Status,
	Status, and Fault Registers” on page 47.
	Response: STS <status mask> where status mask is the decimal equivalent
	of the total bit weights for the operating conditions as listed in the status
	register.
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 47.
	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 47.
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.

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