Xantrex Technology XHR, XFR, XFR3 manual Example

Operation

GPIB Operation

Table 3.1 IEEE-488.1 Interface Functions Implemented

	Mnemonic	Capability	Description
	SH1	Source Handshake	Device must properly transfer a multiline message.
Multiline	AH1	Acceptor Handshake	Device must properly receive remote multiline
Control			messages.
Functions	T6	Talker	Device must be able to transmit.
	L4	Listener	Device must receive commands and data.
	DC1	Device Clear	Device can be initialized to a previously determined
Interface			state.
Functions	DT1	Device Trigger	A device function can be initiated by a talker on the
			bus.
	E1	Open Collector Drivers	Describes the type of electrical drivers in a device.
	PP1	Parallel Poll	Upon controller request, device must uniquely
			identify itself if it requires service.
	RL1	Remote/Local	Device must be able to operate from front panel and
			via remote information from bus.
	SR1	Service Request	Device can asynchronously request service from
			controller.
	SP1	Serial Poll	All talkers on the bus assume a serial poll mode.
			Each device when addressed will provide an 8-bit
			word of status information.

Multiline The GPIB interface and the computer controller implement the Acceptor Handshake, Control Source Handshake, Listener, and Talker functions. No user action is required. The Functions unit's ADR (Addressed) LED turns on when the power supply is addressed to listen

or talk.

Device Clear The power supply will implement Device Clear regardless of whether it is in local or remote control. Device Clear is typically used to send all or selected devices to a known state with a single command. The power supply will be set to Initial (Power On) Conditions after Device Clear.

Example:

ibfind "devname"	Address the unit (devname or device name as
	configured originally with ibconf)
ibclr	Low level command directed to entire bus, or
ibwrt"clr"	Device-dependent command directed to a
	specific device.

34 Operating Manual for GPIB for XHR/XFR Series Power Supply