Remote Interface Reference 3
System-Related Commands
E364xA User’s and Service Guide 97
SYSTem:ERRor?
Query the power supply’s error queue. A record of up to 20
errors are stored in the power supply’s error queue. Errors
are retrieved in the first- in- first- out (FIFO) order. The first
error returned is the first error that was stored. When you
have read all errors from the queue, the ERROR annunciator
turns off and the errors are cleared. See
Chapter 4, “Error
Messages” for more details.
SYSTem:VERSion?
Query the power supply to determine the present SCPI
version. The returned value is a string in the form of
YYYY.V where the Y represents the year of the version, and
the V represents a version number for that year (for
example, 1997.0).
*IDN?
Read the power supply’s identification string. The power
supply returns four fields separated by commas. The first
field is the manufacturer’s name, the second field is the
model number, the third field is not used (always 0), and
the fourth field is a revision code which contains three
numbers. The first number is the firmware revision number
for the main power supply processor; the second is for the
input/output processor; and the third is for the front panel
processor.
The command returns a string with the following format (be
sure to dimension a string variable with at least 40
characters):
Keysight Technologies,E3646A,0,X.X-Y.Y-Z.Z
(E3646A model)
*TST?
Perform a complete self- test of the power supply. Returns 0
if the self- test passes or 1 or any non- zero value if it fails.
If the self- test fails, an error message is also generated with
additional information on why the test has failed.
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