Chapter 3 Front-Panel Operation and Features
System-Related Operations
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Firmware Revision Query
The power supply has three microprocessors for control of various internal systems.
You can query the power supply to determine which revision of firmware is installed
for each microprocessor.
• The power supply returns three revision numbers. The first number is the firmware
revision number for the main processor; the second is for the input/output
processor; and the third is for the front-panel processor.
• Front-Panel Operation:
REV X.X-Y.Y-Z.Z
Press and turn the knob until FW REVISION appears and then press
to read the system firmware revision numbers.
• Remote interface operation:
*IDN?
The above command returns a string in the form:
‘‘Agilent Technologies,E3646A,0,X.X-Y.Y-Z.Z’’ (E3646A)
Be sure to dimension a string variable with at least 40 characters.
SCPI Language Version
This power supply complies with the rules and regulations of the present version of
SCPI (Standard Commands for Programmable Instruments). You can determine the
SCPI version with which the power supply is in compliance by sending a command
from the remote interface.
You can query the SCPI version from the remote interface only.
• Remote interface operation:
‘‘SYST:VERS?’’ Query the SCPI version
Returns a string in the form “YYYY.V” where the “Y’s” represent the year of the
version, and the “V” represents a version number for that year
(for example, 1997.0).
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