Keithley 2600B

Series 2600B
System SourceMeter® Instrument Reference Manual Section 7: TSP command ref
erence
2600BS-901-01 Rev. C / August 2016 7-285
For information about .condition, .enable, .event, .ntr, and .ptr registers, refer to Status register set
contents (on page E-1) and Enable and transition registers (on page E-19). The individual bits of this
register are defined in the following table.
Bit Value Description
B0*
status.measurement.instrument.smuX.VOLTAGE_LIMIT
status.measurement.instrument.smuX.VLMT
Set bit indicates that the
voltage limit was
exceeded.
Bit B0 decimal value: 1
B1*
status.measurement.instrument.smuX.CURRENT_LIMIT
status.measurement.instrument.smuX.ILMT
Set bit indicates that the
current limit was exceeded.
Bit B1 decimal value: 2
B2-B6
Not used
Not applicable.
B7
status.measurement.instrument.smuX.READING_OVERFLOW
status.measurement.instrument.smuX.ROF
Set bit indicates that an
overflow reading has been
detected.
Bit B7 decimal value: 128
B8
status.measurement.instrument.smuX.BUFFER_AVAILABLE
status.measurement.instrument.smuX.BAV
Set bit indicates that there
is at least one reading
stored in either or both of
the dedicated reading
buffers.
Bit B8 decimal value: 256
B9-B15
Not used
Not applicable.
* This bit will be updated only when a measurement is taken or smu
X
.source.compliance is invoked.
As an example, to set bit B0 of the measurement event SMU X summary enable register, set
status.measurement.instrument.smua.enable =
status.measurement.instrument.smua.VLMT.
In addition to the above constants, measurementRegister can be set to the decimal equivalent of
the bit to set. To set more than one bit of the register, set measurementRegister to the sum of
their decimal weights. For example, to set bits B1 and B8, set measurementRegister to 258
(which is the sum of 2 + 256).
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.measurement.instrument.smua.enable =
status.measurement.instrument.smua.VLMT
Sets the VLMT bit of the
measurement event SMU A
summary enable register
using a constant.
Also see
Measurement event registers (on page E-8)