Keithley 2657A, Справочное руководство, Страница: 594 / 805

Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 7: TSP command reference
2657A-901-01 Rev. B/December 2012 7-281
Bit Value Description
B0 Not used Not applicable.
B1 status.operation.instrument.smu
X
.trigger_overrun.ARM Set bit indicates that the
arm event detector of the
SMU was already in the
detected state when a
trigger was received.
Bit B1 decimal value: 2
B2 status.operation.instrument.smu
X
.trigger_overrun.SRC Set bit indicates that the
source event detector of
the SMU was already in
the detected state when a
trigger was received.
Bit B2 decimal value: 4
B3 status.operation.instrument.smu
X
.trigger_overrun.MEAS Set bit indicates that the
measurement event
detector of the SMU was
already in the detected
state when a trigger was
received.
Bit B3 decimal value: 8
B4 status.operation.instrument.smu
X
.trigger_overrun.ENDP Set bit indicates that the
end pulse event detector of
the SMU was already in
the detected state when a
trigger was received.
Bit B4 decimal value: 16
B5-B15 Not used Not applicable.
As an example, to set bit B1 of the operation status SMU A trigger overrun enable register, set
status.operation.instrument.smua.trigger_overrun.enable =
status.operation.instrument.smua.trigger_overrun.ARM
.
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 B1 and B4, set
operationRegister
to 18 (which is the sum of 2 + 16).
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.trigger_overrun.enable =
status.operation.instrument.smua.trigger_overrun.ARM Uses a constant to sets
the ARM bit of the
operation status SMU A
trigger overrun enable
register.
Also see
Operation Status Registers (on page E-9)
status.operation.instrument.smuX.* (on page 7-278)