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Model 2651A High Power System SourceMeter® Instrument Reference Manual
Bit
Value
B0-B7
Not used
B8
status.questionable.CALIBRATION
status.questionable.CAL
B9
status.questionable.UNSTABLE_OUTPUT
status.questionable.UO
B10-B11
Not used
B12
status.questionable.OVER_TEMPERATURE
status.questionable.OTEMP
B13
status.questionable.INSTRUMENT_SUMMARY
status.questionable.INST
B14-B15
Not used
As an example, to set bit B9 of the questionable status enable register, set status.questionable.enable =
status.questionable.UO.
In addition to the above constants, quesRegister can be set to the numeric equivalent of the bit to set. To set
more than one bit of the register, set quesRegister to the sum of their decimal weights. For example, to set
bits B12 and B13, set quesRegister to 12,288 (which is the sum of 4096 + 8192).
Bit
Binary value
Decimal
Weights
Bit
Binary value
Decimal
Weights
Also see
Questionable Status Registers
status.questionable.calibration.*
This attribute contains the questionable status calibration summary register set.
Type
TSP-Link accessible
Attribute
- -
.condition (R)
Yes
.enable (RW)
Yes
.event (R)
Yes
.ntr (RW)
Yes
.ptr (RW)
Yes
2651A-901-01 Rev. A / March 2011
B7
B6
B5
0/1
0/1
0/1
128
64
32
7
6
5
(2
)
(2
)
(2
)
B15
B14
B13
0/1
0/1
0/1
32,768
16,384
8,192
15
14
13
(2
)
(2
)
(2
)
(on page E-21)
Affected by
Where saved
- -
- -
Not applicable
Not saved
Status reset
Not saved
Status reset
Not saved
Status reset
Not saved
Status reset
Not saved
Section 7: Command reference
Description
Not available
An enabled bit in the questionable status calibration
summary event register is set.
Bit B6 decimal value:256
An enabled bit in the questionable status unstable
output summary event register is set.
Bit B9 decimal value: 512
Not available
An enabled bit in the questionable status over
temperature summary event register is set.
Bit B12 decimal value: 4,096
An enabled bit in the questionable status
instrument summary event register is set.
Bit B13 decimal value: 8,192
Not available
B4
B3
B2
0/1
0/1
0/1
16
8
4
4
3
2
(2
)
(2
)
(2
)
B12
B11
B10
0/1
0/1
0/1
4,096
2,048
1024
12
11
10
(2
)
(2
)
(2
)
Default value
- -
Not applicable
0
0
0
2 (All bits set)
B1
B0
0/1
0/1
2
1
1
0
(2
)
(2
)
B9
B8
0/1
0/1
512
256
9
8
(2
)
(2
)
7-301
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Troubleshooting
