HP 34970A manual HEWLETT-PACKARD,34901A,0,X.X

Chapter 4 Features and Functions

System-Related Operations

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The instrument has three microprocessors for control of various internal systems. Each plug-in module also has its own on-board microprocessor. You can query the instrument and each module to determine which revision of firmware is installed for each microprocessor.

∙The instrument returns three revision numbers. The first number is the firmware revision number for the measurement processor; the second is the input/output processor; and the third is the front-panel display processor. For each plug-in module, the instrument returns one revision number for the on-board processor.

∙ Sctxt” :

REV X.X-Y.Y-Z.Z

Turn the knob to read the firmware revision number for the module installed in each of the three slots. If a slot does not contain a module, EMPTY SLOT is displayed.

∙exx Vxytvx bxt”: Use the following command to read the system firmware revision numbers (be sure to dimension a string variable with at least 40 characters).

*IDN?

The above command returns a string in the form:

HEWLETT-PACKARD,34970A,0,X.X-Y.Y-Z.Z

Use the following command to read the firmware revision number of the module in the specified slot (be sure to dimension a string variable with at least 30 characters).

SYSTem:CTYPe? {100200300}

This command returns a string in the form:

HEWLETT-PACKARD,34901A,0,X.X

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