GPIB Commands

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This page provides a look at some of JFW’s existing remote commands for GPIB test systems. The interface card JFW uses for GPIB systems is different than the interface card we use in our Ethernet and RS-232 test systems. Therefore, there are differences in what JFW can offer for remote commands depending on the control type of the test system. In addition to these standard commands, JFW can provide you with custom remote commands if requested. These commands are only typical remote commands. For the remote commands for a specific model, please refer to the system manual.

GPIB Commands
(listed below on this page
in the following order)
Identification
Set Attenuator
Read Attenuator
Set Switch
Read Switch
Set Output
Read Output
Set Input
Read Input

JFW Test Systems Catalog

GPIB Commands in PDF

Identification
This command echoes back information about the test system.
Syntax:	IDN?
Example:	IDN? - Returns “JFW Industries, Inc., Model 50PA-374, Firmware Rev A”
Notes:	Command is not case sensitive.
	Command does not have to be terminated by a carriage return.

Set Attenuator
The set attenuator command is used to set the attenuation level of a specific attenuator.
Syntax:	SAx y
	x = attenuator number
	y = attenuation level
Example:	SA1 127 Sets attenuation of attenuator #1 to 127dB
	SA12 98 Sets attenuation of attenuator #12 to 98dB
Notes:	Command is not case sensitive.
	Command does not have to be terminated by a carriage return.

Read Attenuator
The read attenuator command returns the attenuation setting for a specific attenuator.
Syntax:	RAx?
	x = attenuator number
Example:	SA2 85 - Sets the attenuation of attenuator #2 to 85dB
	RA2? - Reads attenuator #2 setting and returns “85dB”
Notes:	Command is not case sensitive.
	Command does not have to be terminated by a carriage return.

Set Switch
The set switch command is used to set a switch to a specific port number.
Syntax:	SSx y
	x = switch number
	y = port number
Example:	SS1 8 - Sets switch #1 to port #8
	SS2 5 - Sets switch #2 to port #5
Notes:	Command is not case sensitive.
	Command does not have to be terminated by a carriage return.

Read Switch
The read switch command returns the port setting for a specific switch.
Syntax:	RSx?
	x = switch number
Example:	SS1 8 - Sets switch #1 to port #8
	RS1? - Reads switch #1 setting and returns “J8”
Notes:	Command is not case sensitive.
	Command does not have to be terminated by a carriage return.

Set Output
The set output command is used to set the output port of a matrix switch to a specific input port.
Syntax:	SOx y
	x = output port number
	y = input port number
Example:	SO3 1 - Connects output port #3 to input port #1
	SO8 4 - Connects output port #8 to input port #4
Notes:	Command is not case sensitive.
	Command does not have to be terminated by a carriage return.

Read Output
The set output command is used to set the output port of a matrix switch to a specific input port.
Syntax:	SOx y
	x = output port number
	y = input port number
Example:	SO3 1 - Connects output port #3 to input port #1
	RO3? - Reads output port #3 setting and returns “J1”
	SO3 0 - Sets output port #3 to unused state
	RO3? - Reads output port #3 setting and returns “J0”
Notes:	Command is not case sensitive.
	Command does not have to be terminated by a carriage return.

Set Input
The set input command is used to set the input port of a matrix switch to a specific output port.
Syntax:	SIx y
	x = input port number
	y = output port number
Example:	SI1 3 - Connects input port #1 to output port #3
	SI4 8 - Connects input port #4 to output port #8
Notes:	Command is not case sensitive.
	Command does not have to be terminated by a carriage return.

Read Input
The read input command is used to see if the input port is connected to any input port.
Syntax:	RIx?
	x = input port number
Example:	SI3 12 - Connects input port #3 to output port #12
	RI3? - Reads input port #3 setting and returns “J12”
	SI3 0 - Sets input port #3 to unused state
	RI3? - Reads output port #3 setting and returns “J0”
Notes:	Command is not case sensitive.
	Command does not have to be terminated by a carriage return.

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