1
8990B Remote Operation
42
Keysight 8990B Programming Guide
Table 1-3
Bit definitions – Questionable Status register
Refer to
“Questionable Status Register Sets”
on page 445 for the
STATus:QUEStionable
commands.
The condition bits are set and cleared under the following conditions:
Table 1-4
Bit change conditions for the Questionable Status register set
Bit
Weight/Decimal value
Definition
0
1
VOLTage summary
1 to 7
–
Not used
8
256
CALibration summary
9
512
Self-test failure
10 to 15
–
Not used (bit 15 is always 0)
Bit
Definition
EVENts causing bit changes
0
VOLTage summary
This is the summary bit for the Questionable VOLTage register
SET:
When there is voltage overload on channel 2 or 3
(error –231,“Data questionable;Voltage overloaded”)
CLEARED:
When there is no voltage overload on channel 2 or 3
8
CALibration summary
This is the summary bit for the Questionable CALibration register
SET:
This may be caused by any CALibration command
Error –231,“Data questionable;Calibration error in channel 1”
Error –231,“Data questionable;Calibration error in channel 4”
CLEARED:
When any of the events listed above succeed and no errors are placed on the
error queue
9
Self-test failure
SET:
When the power-on self-test fails
CLEARED:
When the power-on self-test passes
Summary of Contents for 8990B
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