Agilent Technologies S GSM, 8922M manual Configuration and Instrument Control

Controlling

HP 8922M/S

Functions

Controlling

Connected

Instruments

NOTE

NOTE

Instrument BASIC

Configuration and Instrument Control

Configuration and Instrument Control

The Agilent 8922M/S’s IBASIC computer acts much like a system controller connected by a GPIB cable to the Agilent 8922M/S; but instead of a cable, the Agilent 8922M/S has its own internal control bus connected to the IBASIC controller.

The internal bus address is 8xx. (xx is any valid GPIB address.) When you write programs to run on the Agilent 8922M/S’s IBASIC computer to address Agilent 8922M/S functions, you must use the “8xx” address to output commands.

For example, if you want a program in the IBASIC computer to reset the Agilent 8922M/S at the start of a test procedure, the program code to do this would be written OUTPUT 814;”*RST”

When the Agilent 8922M/S’s GPIB Mode field, on the I/O Configure screen is set to Control, it takes on the role of system controller. This allows it to control other test instruments connected by GPIB cables.

Instruments controlled by the Agilent 8922M/S use the normal 7xx GPIB address prefix.

For example, if two Agilent 8922M/S’s are used in a test system, and the second instrument’s GPIB address is 715, a program running in the controlling

Agilent 8922M/S would output the command OUTPUT 715;”*RST” to reset the controlled Agilent 8922M/S.

Multiple Controllers Only one system controller can be connected to the bus at any time. If the Agilent 8922M/S is used in a test system that has its own controller, the Agilent 8922M/S can not be used as a controller unless the system controller is turned off or disconnected from the bus.

If an Agilent 8922M/S is used as a controller in a system with another Agilent 8922M/S, the GPIB Mode of the non-controller Agilent 8922M/S must be set to Talk&Listen.

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