Keithley 2600a series User Manual

2600AS-901-01 Rev. B / September 2008 Return to Section Topics 19-155
Series 2600A System SourceMeter® Instruments Reference Manual Section 19: Remote Commands
Remarks • These attributes are used to read or write to the measurement event current limit summary
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 event current limit summary registers are described as
follows:
• Bit B1, SMUA: Set bit indicates the enabled ILMT bit for the SMU A measurement register is
set.
• Bit B2, SMUB: Set bit indicates the enabled ILMT bit for the SMU B measurement register is
set.
Details See Status model (measurement event registers) in Appendix C.
Example Sets the SMUA bit of the measurement event current limit summary enable register:
status.measurement.current_limit.enable =
status.measurement.current_limit.SMUA
status.measurement.instrument.condition
status.measurement.instrument.enable
status.measurement.instrument.event
status.measurement.instrument.ntr
status.measurement.instrument.ptr
Attribute Measurement event instrument summary register set.
Default 0
TSP-Link
accessibility
This attribute can be accessed from a remote TSP-Link node.
Usage Reads condition, enable, event, NTR, and PTR registers:
measreg = status.measurement.instrument.condition
measreg = status.measurement.instrument.enable
measreg = status.measurement.instrument.event
measreg = status.measurement.instrument.ntr
measreg = status.measurement.instrument.ptr
Writes to enable, NTR, and PTR registers:
status.measurement.instrument.enable = measreg
status.measurement.instrument.ntr = measreg
status.measurement.instrument.ptr = measreg
Set measreg to one of the following values:
0 Clears all bits.
status.measurement.instrument.SMUA Sets SMUA bit (B1).
status.measurement.instrument.SMUB Sets SMUB bit (B2).
measreg can also be set to the decimal weight of the bit to be set. Examples:
To set bit B1 (SMUA), set measreg to 2 (2
1
).
To set bit B2 (SMUB), set measreg to 4 (2
2
).
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).

Keithley 2600a series Specifications

General

Brand	Keithley
Model	2600a series
Category	Measuring Instruments
Language	English