Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 7: TSP command reference
2657A-901-01 Rev. B/December 2012 7-279
Bit Value Description
B0
status.operation.instrument.smuX.CALIBRATING
status.operation.instrument.smuX.CAL
Set bit indicates that
smuX is unlocked for
calibration.
Bit B0 decimal value: 1
B1-B2 Not used Not applicable.
B3
status.operation.instrument.smuX.SWEEPING
status.operation.instrument.smuX.SWE
Set bit indicates that
smuX is sweeping.
Bit B3 decimal value: 8
B4
status.operation.instrument.smuX.MEASURING
status.operation.instrument.smuX.MEAS
Bit will be set when taking
an overlapped
measurement, but it will
not set when taking a
normal synchronous
measurement.
Bit B4 decimal value: 16
B5-B9 Not used Not applicable.
B10
status.operation.instrument.smuX.TRIGGER_OVERRUN
status.operation.instrument.smuX.TRGOVR
Set bit indicates an
enabled bit has been set
in the operation status
smu X trigger overrun
event register.
Bit B10 decimal value:
1,024
B11-B15 Not used Not applicable.
As an example, to set bit B0 of the operation status SMU A summary enable register, set
status.operation.instrument.smua.enable = status.operation.instrument.smua.CAL.
In addition to the above constants, operationRegister can be set to the numeric equivalent of the bit to set.
To set more than one bit of the register, set operationRegister to the sum of their decimal weights. For
example, to set bits B0 and B10, set operationRegister to 1,025 (which is the sum of 1 + 1,024).
Bit B7 B6 B5 B4 B3 B2 B1 B0
Binary value 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1
Decimal 128 64 32 16 8 4 2 1
Weights
(2
7
) (2
6
) (2
5
) (2
4
) (2
3
) (2
2
) (2
1
) (2
0
)
Bit B15 B14 B13 B12 B11 B10 B9 B8
Binary value 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1
Decimal 32,768 16,384 8,192 4,096 2,048 1,024 512 256
Weights
(2
15
) (2
14
) (2
13
) (2
12
) (2
11
) (2
10
) (2
9
) (2
8
)
Example
status.operation.instrument.smua.enable =
status.operation.instrument.smua.MEAS
Use a constant to set the MEAS bit
of the operation status SMU A
summary enable register.
Also see
Operation Status Registers (on page E-9)
status.operation.instrument.smuX.trigger_overrrun.*
(on page 7-280)
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