138 Chapter 11
Using HP Instrument BASIC
HP Instrument BASIC, Overview
HP Instrument BASIC, Overview
You can use HP Instrument BASIC in a wide variety of applications from mere automation
of a measurement procedure to external GPIB equipment control.
HP Instrument BASIC, although incorporated in the 4294A, works as independent system
control. Thus it can communicate, using GPIB commands, with external GPIB measuring
equipment, computers, peripheral devices, let alone the 4294A's main unit via the GPIB
interface.
The programming interface of HP Instrument BASIC comprises an editor and
programming utilities. These utilities are to save, recall, re-number programs, and to delete
a program in part or in whole.
The command set of HP Instrument BASIC looks similar to that of HP BASIC. Actually,
with small modifications made, HP Instrument BASIC programs can be run using HP
BASIC on an external computer. See “HP Instrument BASIC Programming Technique” in
HP Instrument BASIC User's Handbook.
Controlling the Agilent 4294A
HP Instrument BASIC can control the 4294A’s main unit via the internal GPIB bus. This
means that 4294A has a measuring device and a controller coupled together with the GPIB
bus within a case.
NOTE The select code for the internal GPIB bus is set to 8. Any internal address from 0 through
30 is valid, so the 4294A's device selector in sample programs is set to “800”.
For details of the GPIB addresses and the device selectors, see “Device Selectors” in “HP
Instrument BASIC Interfacing Techniques” in HP Instrument BASIC User's Handbook
and “Device selector” on page 28.
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