103
Remote Commands
The Common Commands
*TST?
Syntax *TST?
Definition The self-test query commands the instrument
to perform a self-test and place the results of
the test in the output queue.
Returned value: 0
≤ value ≤ 65535. This value
is the sum of the results for the individual tests
Table 8-9 The Self Test Results
So 16 would mean that the DSP (Digital Signal
Processor) Communications had failed, 18
would mean that the DSP Communications had
failed, and so had the Battery RAM. A value of
zero indicates no errors.
No further commands are allowed while the
test is running.
The instrument is returned to the setting that
was active at the time the self-test query was
processed.
BITS MNEMONICS BIT VALUE
8Counter 256
7 Analog to Digital Converter 128
6 General DSP Hardware 64
5DSP Timeout 32
4 DSP Communications 16
3 Calibration Data Corrupt 8
2Keypad 4
1 Battery RAM 2
0 Calibration Data
Not Present/ Checksum Fail 1
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