Chapter 3 Front-Panel Operation and Features
System-Related Operations
57
3
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
twice to read the system firmware revision numbers.
• Remote interface operation:
*IDN?
The above command returns a string in the form:
‘‘
Agilent Technologies,E3640A,0,X.X-Y.Y-Z.Z
’’
(E3640A)
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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