Keithley SourceMeter 2600 Series Reference Manual page 394

12-120 Instrument Control Library
status.questionable.instrument.smuX.*
status.questionable.instrument.smuX.condition
status.questionable.instrument.smuX.enable
status.questionable.instrument.smuX.event
status.questionable.instrument.smuX.ntr
status.questionable.instrument.smuX.ptr
* = condition, enable, event, ntr or ptr
Attribute Questionable SMU event register sets.
Usage Reads condition, enable, event, NTR and PTR registers:
quesreg = status.questionable.instrument.smuX.condition
quesreg = status.questionable.instrument.smuX.enable
quesreg = status.questionable.instrument.smuX.event
quesreg = status.questionable.instrument.smuX.ntr
quesreg = status.questionable.instrument.smuX.ptr
Writes to enable, NTR and PTR registers:
status.questionable.instrument.smuX.enable = quesreg
status.questionable.instrument.smuX.ntr = quesreg
status.questionable.instrument.smuX.ptr = quesreg
Set
0
status.questionable.CALIBRATING
status.questionable.CAL
status.questionable.OVER_TEMPERATURE
status.questionable.OTEMP
quesreg
To set bit B8 (CAL), set
To set bit B12 (OTEMP), set
To set both bits of the register, set
bits B8 and B12, set
(256 + 4096).
• This attribute is used to read or write to the questionable SMU event registers.
Remarks
• Reading a status register returns a value. The binary equivalent of the returned value
indicates which register bits are set. The least significant bit of the binary number is
bit 0, and the most significant bit is bit 15.
For example, assume value 4362 is returned for the enable register. The binary
equivalent is 0001000100000000. This value indicates that bit B8 (Cal bit) and bit B4
(Meas bit) are set.
• The used bits of the questionable SMU event registers are described as follows:
• Bit B8, CAL – Set bit indicates that calibration is questionable.
• Bit B12, OTEMP – Set bit indicates that an over temperature condition was
detected.
Details See "Questionable Event
2600S-901-01 Rev. A / May 2006
to one of the following values:
quesreg
can also be set to the decimal weight of the bit to be set. Examples:
quesreg
quesreg
Registers" in
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Series 2600 System SourceMeters Reference Manual
8
to 256 (2 ).
12
to 4096 (2
quesreg
to the sum of the decimal weights. To set
quesreg
to 4362
Appendix D.
Section 12 topics
smuX = smua or smub
Clears all bits.
Sets CAL bit (B8).
Sets CAL bit (B8).
Sets OTEMP bit (B12).
Sets OTEMP bit (B12).
).