Keithley 3721 User Manuals

Table of Contents

• Introduction

  1
• Contact information

  1
• Overview

  1
• Measure and switching capabilities

  1
• Warranty information

  1
• Displaying the unit's serial number

  1
• Figure 1-1: DMM measurement capabilities

  1
• Contact information

  1
• Overview

  1
• Warranty information

  1
• TSP Programming Fundamentals

  2
• Introduction

  2
• Test Script Processor (TSPTM)

  2
• Run-time environment

  2
• Queries

  2
• Scripts

  2
• Named scripts

  2
• Programming overview

  2
• Chunk defined

  2
• Script defined

  2
• Run-time environment

  2
• Nonvolatile memory

  2
• TSPTM programming levels

  2
• Programming model for scripts

  2
• Installing the TSPTM software

  2
• System connections

  2
• Rear panel summary

  2
• GPIB interface connection

  2
• Standard RJ-45 (Ethernet) interface connection

  2
• USB connection

  2
• Using Test Script Builder (TSB)

  2
• Project Navigator

  2
• Script Editor

  2
• Programming interaction

  2
• Sending commands and statements

  2
• Measure voltage

  2
• Read and write to the digital I/O port

  2
• Display user-defined messages

  2
• User scripts

  2
• Script examples

  2
• Creating a user script

  2
• Saving a user script

  2
• Loading a user script

  2
• Running a user script

  2
• Loading a script from the Series 3700 front panel

  2
• Saving a script from the Series 3700 front panel

  2
• Modifying a user script

  2
• Script management

  2
• Differences: Remote versus local state

  2
• Remote state

  2
• Local state

  2
• TSP-LinkTM system

  2
• Test Script Language (TSL) Reference

  2
• Introduction

  2
• Variables and types

  2
• Operators

  2
• Functions

  2
• Tables/arrays

  2
• Precedence

  2
• Logical operators

  2
• Concatenation

  2
• Branching

  2
• Loop control

  2
• Standard libraries

  2
• Figure 2-1: TSP test script example

  2
• Figure 2-2: Programming model for scripts

  2
• Figure 2-3: Rear panel features

  2
• Figure 2-4: GPIB cable

  2
• Figure 2-5: Using Test Script Builder (TSB)

  2
• Introduction

  2
• Test Script Processor (TSPTM)

  2
• Run-time environment

  2
• Queries

  2
• Scripts

  2
• Named scripts

  2
• Programming overview

  2
• Installing the TSPTM software

  2
• System connections

  2
• Using Test Script Builder (TSB)

  2
• Sending commands and statements

  2
• Measure voltage

  2
• User scripts

  2
• Differences: Remote versus local state

  2
• Test Script Language (TSL) Reference

  2
• TSP Advanced Features

  3
• Introduction

  3
• Using groups to manage nodes on TSP-LinkTM network

  3
• Master node overview

  3
• Group leader overview

  3
• Assigning groups

  3
• Reassigning groups

  3
• Running parallel test scripts

  3
• Coordinating overlapped operations in remote groups

  3
• Using the data queue for real-time communication

  3
• Copying test scripts across the TSP-LinkTM network

  3
• Removing stale values from the reading buffer

  3
• Commands related to TSP advanced features

  3
• Figure 3-1: Multiple TSP-Link networks

  3
• Figure 3-2: Single TSP-Link network with groups

  3
• Introduction

  3
• Running parallel test scripts

  3
• Using the data queue for real-time communication

  3
• Copying test scripts across the TSP-LinkTM network

  3
• Removing stale values from the reading buffer

  3
• Commands related to TSP advanced features

  3
• Using the Front Panel

  4
• Front panel introduction

  4
• Display

  4
• Channel type indication

  4
• Using the front panel with non-switch channels

  4
• Special keys and power switch

  4
• CONFIG key

  4
• CONFIG CHAN key

  4
• DISPLAY key

  4
• POWER switch

  4
• RESET switch

  4
• Operation keys

  4
• CHAN key

  4
• DELETE key

  4
• DMM key

  4
• ENTER key

  4
• EXIT key

  4
• FILTER key

  4
• FUNCtion key

  4
• INSERT key

  4
• LIMIT key

  4
• LOAD key

  4
• MENU key

  4
• PATT key

  4
• REL key

  4
• RUN key

  4
• SCAN key

  4
• SLOT key

  4
• TRIG key

  4
• Range keys, cursor keys, and navigation wheel

  4
• AUTO key

  4
• CURSOR keys

  4
• Navigation wheel

  4
• RANGE keys

  4
• Action keys

  4
• CLOSE key

  4
• OPEN ALL key

  4
• OPEN key

  4
• RATE key

  4
• RECall key

  4
• STEP key

  4
• STORE key

  4
• Figure 4-1: Model 3706 System Switch/Multimeter

  4
• Figure 4-2: Model 3706-S System Switch (no DMM)

  4
• Figure 4-3: Model 3706-NFP System Switch/Multimeter

  4
• Figure 4-4: Model 3706-SNFP System Switch (no DMM)

  4
• Figure 4-5: Active channel display example

  4
• Figure 4-6: MAIN MENU display

  4
• Front panel introduction

  4
• Display

  4
• Special keys and power switch

  4
• Operation keys

  4
• Range keys, cursor keys, and navigation wheel

  4
• Action keys

  4
• Range, Digits, Rate, Bandwidth, and Filter

  5
• Range

  5
• Measurement ranges and maximum readings

  5
• Manual range keys

  5
• Auto ranging over the front panel

  5
• Scanning

  5
• Range remote programming (ICL)

  5
• Digits ICL programming

  5
• Scanning

  5
• Setting digits

  5
• Rate

  5
• Setting Rate from the front panel

  5
• Setting measurement speed from a remote interface

  5
• Bandwidth

  5
• Filter

  5
• Filter characteristics

  5
• Digital filter window

  5
• Figure 5-1: Speed versus noise characteristics

  5
• Figure 5-2: Moving average filter

  5
• Figure 5-3: Repeating average filter

  5
• Figure 5-4: Filter window

  5
• Range

  5
• Digits ICL programming

  5
• Rate

  5
• Bandwidth

  5
• Filter

  5
• Relative, Math, and dB

  6
• Relative

  6
• Basic front panel REL procedure

  6
• REL remote operation

  6
• Scanning

  6
• Math calculations

  6
• mX+b

  6
• Percent

  6
• Reciprocal (1/X)

  6
• dB commands

  6
• dB configuration

  6
• dB scanning

  6
• Relative

  6
• Math calculations

  6
• dB commands

  6
• Buffer: Data Storage and Retrieval

  7
• Buffer overview

  7
• Front panel operation

  7
• Creating and selecting a reading buffer

  7
• Selecting a reading buffer

  7
• Storing readings

  7
• Saving readings

  7
• Clearing readings

  7
• Deleting a reading buffer

  7
• Recalling readings

  7
• Buffer configuration (front panel)

  7
• Appending readings

  7
• Remote buffer operation

  7
• Data store (buffer) commands

  7
• Reading buffers

  7
• Time and date values

  7
• Buffer status

  7
• Dynamically-allocated buffers

  7
• Dynamic buffer programming example

  7
• Exceeding reading buffer capacity

  7
• Buffer overview

  7
• Front panel operation

  7
• Remote buffer operation

  7
• Scanning

  8
• Scanning fundamentals

  8
• Channel assignments

  8
• Events

  8
• Foreground and background scan execution

  8
• Trigger model

  8
• Trigger model components

  8
• Scan and step counts

  8
• Basic scan procedure

  8
• Buffer

  8
• Changing channel and DMM attributes of an existing scan

  8
• Front panel scanning

  8
• Scan configuration

  8
• Bus operation scanning

  8
• ICL commands

  8
• Scanning examples

  8
• Hardware trigger modes

  8
• Falling edge trigger mode

  8
• Rising edge master trigger mode (version 1.4.0 or higher)

  8
• Rising edge acceptor trigger mode (version 1.4.0 or higher)

  8
• Either edge trigger mode

  8
• Understanding synchronous triggering modes

  8
• Figure 8-1: Event detector

  8
• Figure 8-2: Trigger model

  8
• Figure 8-3: Falling edge input trigger

  8
• Figure 8-4: Falling edge output trigger

  8
• Figure 8-5: RisingM output trigger

  8
• Figure 8-6: RisingA input trigger

  8
• Figure 8-7: RisingA output trigger

  8
• Figure 8-8: Either edge input trigger

  8
• Figure 8-9: Either edge output trigger

  8
• Figure 8-10: SynchronousM input trigger

  8
• Figure 8-11: SynchronousM output trigger

  8
• Figure 8-12: SynchronousA input trigger

  8
• Figure 8-13: SynchronousA output trigger

  8
• Figure 8-14: Synchronous input trigger

  8
• Figure 8-15: Synchronous output trigger

  8
• Scanning fundamentals

  8
• Scan and step counts

  8
• Basic scan procedure

  8
• Front panel scanning

  8
• Bus operation scanning

  8
• Hardware trigger modes

  8
• Files

  9
• File formats

  9
• Default file extensions

  9
• File system navigation

  9
• File I/O

  9
• Script examples

  9
• Command table entries

  9
• File formats

  9
• Default file extensions

  9
• File system navigation

  9
• File I/O

  9
• Script examples

  9
• Command table entries

  9
• TSP-Net

  10
• Overview

  10
• TSP-NetTM Capabilities

  10
• Using TSP-NetTM with any Ethernet-enabled device

  10
• Example script

  10
• Using TSP-NetTM vs. TSP-LinkTM for communication with TSP-enabled devices

  10
• Instrument Control Library (ICL) - General device control

  10
• Instrument Control Library - TSP-specific device control

  10
• Overview

  10
• TSP-NetTM Capabilities

  10
• Using TSP-NetTM with any Ethernet-enabled device

  10
• TSP-enabled devices

  10
• LXI Class B Triggering (IEEE-1588)

  11
• Introduction to IEEE-1588 based triggering

  11
• IEEE-1588 implementation in the Series 3700

  11
• Correlating PTP to Coordinated Universal Time (UTC)

  11
• Configuring and enabling IEEE-1588

  11
• Scheduling alarms

  11
• Monitoring alarms with LAN triggers and LXI event log

  11
• LXI event log

  11
• Example applications of IEEE-1588 in Series 3700-based systems

  11
• Synchronizing multiple Series 3700 instruments

  11
• Introduction to IEEE-1588 based triggering

  11
• IEEE-1588 implementation in the Series 3700

  11
• Configuring and enabling IEEE-1588

  11
• Status Model

  12
• Status register sets

  12
• Negative and positive transition registers

  12
• Status byte and SRQ

  12
• Queues

  12
• System summary and status byte

  12
• System summary registers

  12
• Standard event status register and enable

  12
• Operation events registers

  12
• Questionable event register

  12
• Measurement event register (measurement)

  12
• Status function summary

  12
• Clearing registers and queues

  12
• Programming enable and transition registers

  12
• Reading registers

  12
• Status byte and service request (SRQ)

  12
• Status byte register

  12
• Serial polling and SRQ

  12
• Service request enable register

  12
• SPE, SPD (serial polling)

  12
• Status byte and service request commands

  12
• Enable and transition registers

  12
• Controlling node and SRQ enable registers

  12
• Status register set specifics

  12
• System summary event registers

  12
• Standard event register

  12
• Operation event registers

  12
• Questionable event registers

  12
• Measurement event registers

  12
• Queues

  12
• Output queue

  12
• Error queue

  12
• Figure 12-1: Status byte and queues

  12
• Figure 12-2: Status byte and system summary register

  12
• Figure 12-3: System summary registers

  12
• Figure 12-4: Standard event registers and event status enable

  12
• Figure 12-5: Operation event registers

  12
• Figure 12-6: Questionable event register

  12
• Figure 12-7: Measurement event register

  12
• Figure 12-8: 16-bit status register

  12
• Figure 12-9: Status byte and service request (SRQ)

  12
• Figure 12-10: Standard event register

  12
• Status register sets

  12
• Status byte and SRQ

  12
• System summary and status byte

  12
• System summary registers

  12
• Standard event status register and enable

  12
• Operation events registers

  12
• Questionable event register

  12
• Measurement event register (measurement)

  12
• Status function summary

  12
• Clearing registers and queues

  12
• Programming enable and transition registers

  12
• Reading registers

  12
• Status byte and service request (SRQ)

  12
• Status register set specifics

  12
• Queues

  12
• Instrument Control Library (ICL)

  13
• Command programming notes

  13
• Wild characters

  13
• Functions and attributes

  13
• TSP-LinkTM nodes

  13
• Logical instruments

  13
• Query commands

  13
• DMM configuration

  13
• ICL command list

  13
• beeper functions and attributes

  13
• bit functions

  13
• channel functions and attributes

  13
• dataqueue functions and attributes

  13
• delay functions

  13
• digio functions and attributes

  13
• display functions and attributes

  13
• dmm functions and attributes

  13
• errorqueue functions and attributes

  13
• eventlog functions and attributes

  13
• exit functions

  13
• file functions

  13
• format attributes

  13
• fs functions

  13
• gpib attributes

  13
• io functions

  13
• LAN functions and attributes

  13
• localnode functions and attributes

  13
• makegetter functions

  13
• memory functions

  13
• opc functions

  13
• print functions

  13
• ptp functions and attributes

  13
• reset functions

  13
• scan functions and attributes

  13
• schedule functions and attributes

  13
• setup functions and attributes

  13
• slot[X] attributes

  13
• status functions and attributes

  13
• timer functions

  13
• trigger functions and attributes

  13
• trigger.timer functions and attributes

  13
• tsplink functions and attributes

  13
• tsplink.trigger functions and attributes

  13
• tspnet functions and attributes

  13
• upgrade functions

  13
• userstring functions

  13
• waitcomplete functions

  13
• Figure 13-1: ch_list legend

  13
• Figure 13-2: Multiplexer card display

  13
• Figure 13-3: Matrix card display

  13
• Figure 13-4: Status byte and queues

  13
• Command programming notes

  13
• ICL command list

  13
• Verification

  14
• Introduction

  14
• Verification test requirements

  14
• Environmental conditions

  14
• Warmup period

  14
• Line power

  14
• Recommended test equipment

  14
• Verification limits

  14
• Restoring factory defaults

  14
• Performing the verification test procedures

  14
• Test summary

  14
• Test considerations

  14
• Series 3700 verification tests

  14
• Verifying DC voltage

  14
• Verifying AC voltage

  14
• Verifying DC current 10µA to 100µA ranges

  14
• Verifying DC current 1mA to 3A ranges

  14
• Verifying AC current 1mA to 3A ranges

  14
• Verifying frequency

  14
• Verifying 4-wire resistance

  14
• Verifying 2-wire resistance

  14
• Verifying dry circuit resistance

  14
• Verifying 1-OHM and 10-OHM resistance ranges

  14
• Verifying zeros using a 4-wire short

  14
• Figure 14-1: DC voltage verification

  14
• Figure 14-2: AC voltage verification

  14
• Figure 14-3: DC current verification 10µA to 100µA ranges

  14
• Figure 14-4: DC current verification 1mA to 3A ranges

  14
• Figure 14-5: DC current verification 3A range diagram

  14
• Figure 14-6: AC current verification 1mA to 1A range

  14
• Figure 14-7: AC current verification 3A range

  14
• Figure 14-8: Frequency verification

  14
• Figure 14-9: Resistance verification

  14
• Figure 14-10: 2-wire resistance verification

  14
• Figure 14-11: Resistance verification

  14
• Figure 14-12: Verifying discrete resistance

  14
• Figure 14-13: 4-wire short diagram

  14
• Introduction

  14
• Verification test requirements

  14
• Performing the verification test procedures

  14
• Series 3700 verification tests

  14
• Calibration

  15
• Overview

  15
• Environmental conditions

  15
• Warmup period

  15
• Line power

  15
• Calibration considerations

  15
• Calibration cycle

  15
• Recommended equipment

  15
• Calibration

  15
• Remote calibration procedure

  15
• DC volts calibration

  15
• Resistance calibration

  15
• DC current calibration

  15
• AC volts calibration

  15
• AC current calibration

  15
• Frequency calibration

  15
• Save calibration

  15
• Figure 15-1: 4-wire short diagram

  15
• Figure 15-2: DC voltage calibration

  15
• Figure 15-3: Resistance calibration

  15
• Figure 15-4: DC current calibration

  15
• Figure 15-5: AC voltage calibration

  15
• Figure 15-6: AC current calibration 1mA to 1A range

  15
• Figure 15-7: Low frequency calibration

  15
• Figure 15-8: Frequency verification

  15
• Overview

  15
• Environmental conditions

  15
• Calibration considerations

  15
• Calibration

  15
• Remote calibration procedure

  15
• Maintenance

  16
• Introduction

  16
• Fuse replacement

  16
• Front panel tests

  16
• Test procedure

  16
• Figure 16-1: Fuse location

  16
• Introduction

  16
• Fuse replacement

  16
• Front panel tests

  16
• Error and status messages

  17
• Introduction

  17
• Error summary

  17
• Error effects on scripts

  17
• Reading errors

  17
• Error and status message list

  17
• Introduction

  17
• Error summary

  17
• Error effects on scripts

  17
• Reading errors

  17
• Error and status message list

  17