Comma Separators; Firmware Revision Query - HP 34401A User Manual

Chapter 3 Features and Functions
System-Related Operations

Comma Separators

The multimeter can display readings on the front panel with or without
a comma separator. This feature is available only from the front panel.
08.241,53 VDC
With comma separator
The display format is stored in non-volatile memory, and does not
change when power has been off or after a remote interface reset.
The comma separator is enabled when the multimeter is shipped
from the factory.
Front-Panel Operation:
7: COMMA (SYS MENU)
See also "To Turn Off the Comma Separator," on page 37.

Firmware Revision Query

The multimeter has three microprocessors for control of various internal
systems. You can query the multimeter to determine which revision of
firmware is installed for each microprocessor.
The multimeter returns three numbers. The first number is the
firmware revision number for the measurement processor; the second
is for the input/output processor; and the third is for the front-panel
processor.
Front-Panel Operation:
8: REVISION (SYS MENU)
Remote Interface Operation:
returns "HEWLETT-PACKARD,34401A,0,XX-XX-XX"
*IDN?
Be sure to dimension a string variable with at least 35 characters.
08.24153
Without comma separator
(factory setting)
REV
VDC
3
XX-XX-XX
89