Keithley 2657A User Manual

Section 7: TSP command reference Model 2657A High Power System SourceMeter® Instrument Reference Manual
7-252 2657A-901-01 Rev. B/December 2012
status.measurement.buffer_available.*
This attribute contains the measurement event buffer available summary register set.
Type TSP-Link accessible Affected by Where saved Default value
Attribute - - - - - - - -
.condition (R) Yes Not applicable Not saved Not applicable
.enable (RW) Yes Status reset Not saved 0
.event (R) Yes Status reset Not saved 0
.ntr (RW) Yes Status reset Not saved 0
.ptr (RW) Yes Status reset Not saved 2 (All bits set)
Usage
measurementRegister = status.measurement.buffer_available.condition
measurementRegister = status.measurement.buffer_available.enable
measurementRegister = status.measurement.buffer_available.event
measurementRegister = status.measurement.buffer_available.ntr
measurementRegister = status.measurement.buffer_available.ptr
status.measurement.buffer_available.enable = measurementRegister
status.measurement.buffer_available.ntr = measurementRegister
status.measurement.buffer_available.ptr = measurementRegister
measurementRegister
The status of the measurement event register; a zero (0) indicates no bits set
(also send 0 to clear all bits); the only valid value other than 0 is 2
Details
These attributes are used to read or write to the measurement event buffer available 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 B0, and the most significant bit is bit B15. For
example, assume the value 2 is returned for the enable register. The binary equivalent is 0000 0000 0000 0010.
This value indicates that bit B1 (SMUA) is set.
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 Not used Not applicable.
B1
status.measurement.buffer_available.SMUA
Set bit indicates that there is at least one
reading stored in either or both of the dedicated
reading buffers.
Bit B1 decimal value: 2
Binary value: 0000 0010
B2-B15 Not used Not applicable.
As an example, to set bit B1 of the measurement event buffer available summary enable register, set
status.measurement.buffer_available.enable =
status.measurement.buffer_available.SMUA.
In addition to the above constant, measurementRegister can be set to the decimal equivalent of the bit to set.
Example
status.measurement.buffer_available.enable =
status.measurement.buffer_available.SMUA
Sets the SMUA bit of the
measurement event buffer available
summary enable register.

Keithley 2657A Specifications

General

Brand	Keithley
Model	2657A
Category	Measuring Instruments
Language	English