Keithley 2601 Reference Manual page 340

Section 12: Instrument Control Library
status.measurement.buffer_available.*
status.measurement.buffer_available.condition
status.measurement.buffer_available.enable
status.measurement.buffer_available.event
status.measurement.buffer_available.ntr
status.measurement.buffer_available.ptr
* = condition, enable, event, ntr or ptr
Attribute Measurement buffer available event register set.
Usage
Reads condition, enable, event, NTR and PTR registers:
measreg = status.measurement.buffer_available.condition
measreg = status.measurement.buffer_available.enable
measreg = status.measurement.buffer_available.event
measreg = status.measurement.buffer_available.ntr
measreg = status.measurement.buffer_available.ptr
Writes to enable, NTR and PTR registers:
status.measurement.buffer_available.enable = measreg
status.measurement.buffer_available.ntr = measreg
status.measurement.buffer_available.ptr = measreg
Set operreg to one of the following values:
0
status.measurement.buffer_available.SMUA
status.measurement.buffer_available.SMUB
measreg
To set bit B1 (SMUA), set
To set bit B2 (SMUB), set
To set both bits, set measreg to the sum of the decimal weights of both bits.
To set bits B1 and B2, set measreg to 6 (2 + 4).
Remarks • This attribute is used to read or write to the measurement buffer available registers.
• 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 measurement buffer available registers are described as follows:
Bit B1, SMUA – Set bit indicates the enabled BAV bit for the SMU A measurement
•
register is set.
Bit B2, SMUB – Set bit indicates the enabled BAV bit for the SMU B measurement
•
register is set.
Details See "Measurement Event
Example Sets the SMUA bit of the measurement buffer available enable register:
status.measurement.buffer_available.enable =
status.measurement.buffer_available.SMUA
12-80
can also be set to the decimal weight of the bit to be set. Examples:
measreg
measreg
Registers" in
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Series 2600 System SourceMeter® Instruments Reference Manual
Clears all bits.
Sets SMUA bit (B1).
Sets SMUB (B2).
1
to 2 (2 ).
2
to 4 (2 ).
Appendix D.
2600S-901-01 Rev. C / January 2008