*ESR?
Standard Event Status Register Query. Queries the event register for the Standard Event Register group.
An event register is a read-only register that latches events from the condition register. While an event bit is set,
subsequent events corresponding to that bit are ignored.
Parameter Typical Return
(none) +24
Read the event register (bits 3 and 4 are set).
*ESR?
l In order to be reported to the Status Byte Register, the corresponding bits in the enable register must be enabled
by *ESE.
l Any or all conditions can be reported to the Standard Event summary bit through the enable register. To set the
enable register mask, write a decimal value to the register using *ESE.
l Once a bit is set, it remains set until cleared by reading the event register or by sending *CLS (clear status).
*IDN?
Identification Query. Returns the instrument’s identification string.
Parameter Typical Return
(none) (see below)
Return the instrument's identification string:
*IDN?
l The identification string contains four comma separated fields:
Manufacturer name, Model number, Serial number, Revision code
If SYSTem:IDENtify DEFault is set, the returned string has the following format:
Agilent Technologies,34460A,<Serial Number>,ff.ff-pp.pp-mm.mm-gg.gg-bb-pp
Agilent Technologies,34461A,<Serial Number>,ff.ff-pp.pp-mm.mm-gg.gg-bb-pp
If SYSTem:IDENtify HP34401A is set, the returned string has the following format:
HEWLETT-PACKARD,34401A,<Serial Number>,ff.ff-pp.pp-mm.mm-gg.gg-bb-pp
Where:
ff.ff Main firmware revision
pp.pp Front panel firmware revision
mm.mm Measurement board firmware revision
gg.gg Measurement board FPGA revision
bb Measurement board revision
pp Front panel board revision
156 Agilent Truevolt Series DMM Operating and Service Guide
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