Keithley SourceMeter 2600 Series Reference Manual page 393

Series 2600 System SourceMeters Reference Manual
status.questionable.instrument.*
status.questionable.instrument.condition
status.questionable.instrument.enable
status.questionable.instrument.event
status.questionable.instrument.ntr
status.questionable.instrument.ptr
* = condition, enable, event, ntr or ptr
Attribute Questionable instrument event register set.
Usage Reads condition, enable, event, NTR and PTR registers:
quesreg = status.questionable.instrument.condition
quesreg = status.questionable.instrument.enable
quesreg = status.questionable.instrument.event
quesreg = status.questionable.instrument.ntr
quesreg = status.questionable.instrument.ptr
Writes to enable, NTR and PTR registers:
status.questionable.instrument.enable = quesreg
status.questionable.instrument.ntr = quesreg
status.questionable.instrument.ptr = quesreg
Set
operreg
0
status.questionable.instrument.SMUA
status.questionable.instrument.SMUB
quesreg
To set bit B1 (SMUA), set
To set bit B2 (SMUB), set
To set both bits, set
bits B1 and B2, set
• This attribute is used to read or write to the questionable instrument 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 6 is returned for the enable register. The binary
equivalent is 0000000000000110. This value indicates that bit B1 (SMUA) and bit B2
(SMUB) are set.
• The used bits of the questionable instrument registers are described as follows:
• Bit B1, SMUA – Set bit indicates one or more enabled bits for the SMU A
questionable register is set.
• Bit B2, SMUB – Set bit indicates one or more enabled bits for the SMU B
questionable register is set.
Details See "Questionable Event
Example Sets the SMUA bit of the questionable instrument enable register:
status.questionable.instrument.enable =
status.questionable.instrument.SMUA
to one of the following values:
can also be set to the decimal weight of the bit to be set. Examples:
quesreg
quesreg
to the sum of the decimal weights of both bits. To set
quesreg
to 6 (2 + 4).
quesreg
Registers" in
Return to
Instrument Control Library 12-119
Clears all bits.
Sets SMUA bit (B1).
Sets SMUB (B2).
1
to 2 (2 ).
2
to 4 (2 ).
Appendix D.
Section 12 topics 2600S-901-01 Rev. A / May 2006