Keithley 6430 User Manual

SCPI Command Reference 17-55
Query [:ON]? Query functions that are enabled
:OFF? Query functions that are disabled
Description When concurrent measurements are enabled, these commands are used to
enable or disable functions to be measured. The [:ON] command is used to
include (enable) one or more measurement functions in the list, and the
:OFF command is used to remove (disable) one or more functions from the
list.
Note that each function specified in the list must be enclosed in single or
double quotes, and functions must be separated by commas (,). Examples:
:FUNCtion “VOLTage”, “CURRent” Enable volts and amps functions
:FUNCtion:OFF ‘VOLTage’, ‘CURRent’ Disable volts and amps functions
Note that there is a stand-alone command that can be used to enable or dis-
able all three measurement functions. See :ALL.
If concurrent measurements (:CONCurrent) are disabled, the :ON command
can only turn on one function at a time.
:ALL
[:SENSe[1]]:FUNCtion[:ON]:ALL Enable all measurement functions
[:SENSe[1]]:FUNCtion:OFF:ALL Disable all measurement functions
Description This command is used to enable or disable all measurement functions.
When enabled (:ON:ALL), amps, volts, and ohms measurements will be
performed simultaneously if concurrent measurements are enabled. See
:CONCurrent. If concurrent measurements are disabled, only the ohms
function will be enabled.
The :OFF:ALL command disables all measurements.
:COUNt?
[:SENSe[1]]:FUNCtion[:ON]:COUNt? Query number of functions enabled
[:SENSe[1]]:FUNCtion:OFF:COUNt? Query number of functions disabled
Description This query command is used to determine the number of functions that are
enabled or disabled.
When :ON:COUNt? is sent, the response message will indicate the number
of functions that are enabled.
When :OFF:COUNt? is sent, the response message will indicate the number
of functions that are disabled.
:STATe? <name>
[:SENSe[1]]:FUNCtion:STATe <name> Query state of specified function
Parameters <name> = “CURRent[:DC]” Amps measurement function
“VOLTage[:DC]” Volts measurement function
“RESistance” Ohms measurement function

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.