Keithley 6430 User Manual

17-100 SCPI Command Reference
:POINts <n>
:TRACe:POINts <n> Specify buffer size
Parameters <n> = 1 to 2500 Specify buffer size
MINimum 1
MAXimum 2500
DEFault 100
Query :POINts? Query buffer size
:POINts? MINimum Query smallest allowable buffer size
:POINts? MAXimum Query largest allowable buffer size
:POINts? DEFault Query *RST default buffer size
Description This command is used to specify the size of the buffer.
:ACTual?
:TRACe:POINts:ACTual? Query number of stored readings
Description This query command is used to determine how many stored readings are in
the buffer. After sending this command and addressing the unit to talk, the
number of readings stored in the buffer will be sent to the computer.
:FEED <name>
:TRACe:FEED <name> Specify readings source
Parameters <name> = SENSe[1] Put raw readings in buffer
CALCulate[1] Put Calc1 readings in buffer
CALCulate2 Put Calc2 readings in buffer
Query :FEED? Query buffer feed
Description This command is used to select the source of readings to be placed in the
buffer. With SENSe[1] selected, raw readings are placed in the buffer when
storage is performed.
With CALCulate[1] selected, math expression results (Calc1) are placed in
the buffer. With CALCulate2 selected, Calc2 readings are placed in the
buffer.
TRACe:FEED cannot be changed while buffer storage is active. See
Section 8 for more information.

Keithley 6430 Specifications

General

Type	Sub-Femtoamp Remote SourceMeter
Compliance Voltage	200 V
Maximum Output Voltage	200 V
Maximum Output Current	100 mA
Compliance Limit	Programmable
Interface	GPIB, RS-232
Input Impedance	>10^14 Ω

Summary

Safety Precautions

3 Basic Source-Measure Operation

Basic Source-Measure Procedure

Details setup for source-measure operations: function, values, limits, and output control.

5 Source-Measure Concepts

Compliance limit

Discusses compliance limits, values, and determination.

Operating boundaries

Covers voltage/current boundaries for source, sink, I-source, V-source, and source-measure modes.

6 Range, Digits, Speed, and Filters

Range and digits

Discusses available ranges, limits, manual/autoranging, and display resolution.

Speed

Filters

Provides information on 3-stage filtering to reduce reading noise.

7 Relative and Math

Math Operations

Details math (FCTN) operations: power, offset ohms, varistor, etc.

9 Sweep Operation

Configuring and Running a Sweep

Discusses setup, configuration, delay setting, and performing sweeps.

10 Triggering

Trigger Model

Discusses trigger model, layers, event detection, delay, and device action.

Configuring Triggering

Details how to configure various triggering aspects.

Remote Triggering

Details remote trigger model, commands, and basic triggering example.

11 Limit Testing

Types of Limits

Discusses three limit types: compliance, coarse, fine; summarizes grading and sorting modes.

Configuring and Performing Limit Tests

Describes configuration for limit tests and typical test procedure.

Remote Limit Testing

12 Digital I/O Port, Interlock, and Output Configuration

Digital I/O Port

Safety Interlock

Describes using Digital I/O Port as a safety interlock.

Front Panel Output Configuration

14 Status Structure

Programming and Reading Registers

Status Byte and Service Request (SRQ)

Explains programming Status Byte for SRQs and using serial poll to detect SRQs.

15 Common Commands

Command Summary

Lists IEEE-488.2 common commands used by the SourceMeter.

Command Reference

Provides detailed reference for common commands, excluding status structure.

16 SCPI Signal-Oriented Measurement Commands

Command Summary

Configuring Measurement Function

Provides detailed info on commands to configure measurement function.

Acquiring Readings

Describes commands to acquire post-processed readings, trigger, acquire, and single measurement.

17 SCPI Command Reference

18 Performance Verification

Verification Test Requirements

Recommended Test Equipment

Performing the Verification Test Procedures

Details restoring factory defaults, setting ranges, and output values.

Mainframe Verification

Covers procedures to verify mainframe accuracy alone.

19 Calibration

Recommended Calibration Equipment

Unlocking Calibration

Mainframe Calibration

Includes procedures to calibrate the mainframe without the Remote PreAmp.

20 Routine Maintenance

Line Fuse Replacement

Covers procedure and part numbers for replacing the line fuse.

Front Panel Tests

F Measurement Considerations

Floating measurement safety concerns

Discusses safety concerns for measurements up to 42V above chassis ground.

Low current measurements

Leakage currents and guarding

Explains reducing leakage currents using insulators, humidity control, and guarding.