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Today I had another go at it, and I have a little more information. I'm not certain that it is a pyvisa- py problem, but more a problem of termination characters or similar.

KKK' note the starting "u", not included in the inverted commas, similar to before subsequent commands all fail, with statusCode. It seems to me the Keithley is sending the first letter of its identity string "K" without pause. Changing the terminating character. So after another bout of fiddling, I was able to resolve most of it. When using the "SCPI" mode everything seems to work fine so far. The u' You only care about what's between the quotes normally.

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Sign up. New issue. Jump to bottom. Copy link Quote reply. I installed pyvisa and pyvisa-py via sudo pip install. This comment has been minimized. Sign in to view.

keithley 2400 scpi example

Changing the terminating character inst.The following sections will help you learn to use SCPI commands in your programs. Branches on the Command Tree. Command Abbreviation. Bracketed Optional Keywords. Vertical Bars Pipes. All major functions on the analyzer are assigned keywords which are called ROOT commands. Under these root commands are branches that contain one or more keywords. The branching continues until each analyzer function is assigned to a branch.

A root command and the branches below it is sometimes known as a subsystem. To keep track of the current branch, the analyzer's command parser uses the following rules:. Many programming language output statements send message terminators automatically. Message terminators are described in Sending Messages to the Analyzer. Colon : - When a colon is between two command keywords, it moves the current path down one level in the command tree.

When the colon is the first character of a command, it specifies that the following keyword is a root level command. Note : You can omit the leading colon if the command is the first of a new program line. There are two important exceptions:. Most commands end with a parameter.

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You must use whitespace to separate these ending parameters from commands. Always refer to the command documentation. Comma- If a command requires more than one parameter, you must separate adjacent parameters using a comma.

Commas do not affect the current path. Semicolon ; - A semicolon separates two commands in the same message without changing the current path. See Multiple Commands later in this topic.

IEEE An instrument interprets them in the same way, regardless of the current path setting. The following are descriptions and examples of each form of command.

Event commands - cause an action to occur inside the analyzer. Query commands - query only; there is no associated analyzer state to set. Command and query - set or query an analyzer setting. The query form appends a question mark?Keithley Instruments manufactures electronic instruments for high-performance production testing, process monitoring, product development, and research.

Once data is in MATLAB, you can analyze and visualize that data for tasks such as signal processing, statistical analysis, digital filtering, and curve fitting. You can also create graphical interfaces for collecting and analyzing your data and automating tests. Instrument drivers let you communicate with an instrument using higher-level commands. Search by model name or number.

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If an instrument driver is not available for your instrument, you can communicate directly with the instrument using SCPI commands over these communication protocols:. Tell us about your Keithley instrument, its model number, and the type of application you want to develop, or request additional information about Keithley instruments.

To request support for a specific instrument, include the instrument's name and model number. We will not sell or rent your personal contact information. See our privacy policy for details. Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select:. Select the China site in Chinese or English for best site performance. Other MathWorks country sites are not optimized for visits from your location.

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Keithley Instruments Model 2400 SourceMeter: How-To Source 10V with 10mA Compliance

Trial software Contact sales. Instrument Type. Keithley Instrument Drivers. Find Keithley Instrument Drivers. Communication Protocols. Keithley Data Acquisition Devices. Learn more about Test and Measurement. Provide Feedback. Enter your email address. Submit We will not sell or rent your personal contact information.

Select a Web Site Choose a web site to get translated content where available and see local events and offers.Page of 46 Go. Quick Links. Series SourceMeter. Table of Contents. Keithley Service Manual pages. All rights reserved. Cleveland, Ohio, U. Page 4 To maintain protection from electric shock and fire, replacement components in mains circuits - including the power transformer, test leads, and input jacks - must be purchased from Keithley Instruments. Standard fuses with applicable national safety approvals may be used if the rating and type are the same.

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Page 7: Source-measure Capabilities Introduction This guide is designed to familiarize users with fundamental operation front panel and remote of the Keithley Series SourceMeters. Operation information in this guide is divided into four parts; 1 Fundamental source-measure operations, 2 Settings to optimize performance, 3 Features to enhance DUT testing and 4 More testing techniques.

A blinking cursor will appear in the field to be edited. If no key is pressed within a few seconds, the edit mode will be cancelled automatically. If it does, guard voltage will become less than the output voltage and corrupt the measurement. Select source function. Set source level. To functions. Table SCPI commands; Integration time affects the usable digits, reading noise, and the ultimate reading rate of the instrument.

Therefore, the first filtered reading is the same as the first reading conversion. The stack type is first-in, first-out. The baseline reading will be subtracted from present and future readings.The power source characteristics include low noise, precision, and readback. The multimeter capabilities include high repeatability and low noise. The result is a compact, single-channel, DC parametric tester. In operation, this instrument can act as a voltage source, a current source, a voltage meter, a current meter, and an ohmmeter.

Manufacturers of components and modules for the communications, semiconductor, computer, automotive, and medical industries will find the invaluable for a wide range of characterization and production test applications. By linking source and measurement circuitry in a single unit, the offers a variety of advantages over systems configured with separate source and measurement instruments.

For example, it minimizes the time required for test station development, setup, and maintenance, while lowering the overall cost of system ownership.

It simplifies the test process itself by eliminating many of the complex synchronization and connection issues associated with using multiple instruments. And its compact half-rack size conserves precious "real estate" in the test rack or bench. The tightly coupled nature of a SourceMeter SMU instrument provides many advantages over solutions configured from separate instruments, such as a precision power supply and a digital multimeter.

keithley 2400 scpi example

For example, it provides faster test times by reducing GPIB traffic and simplifies the remote programming interface. It also protects the device under test from damage due to accidental overloads, thermal runaway, etc. Both the current and voltage source are programmable with readback to help maximize device measurement integrity.

If the readback reaches a programmed compliance limit, then the source is clamped at the limit, providing fault protection.

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In the first and third quadrants they operate as a source, delivering power to a load. In the second and fourth quadrants they operate as a sync, dissipating power internally.

Voltage, current, and resistance can be measured during source or sync operation. It sources voltage or current while making measurements without needing to change connections. It is designed for reliable operation in non-stop production environments.

Providing the finest test equipment solutions since 1992

To provide the throughput demanded by production applications, the SourceMeter SMU instrument offers many built-in features that allow it to run complex test sequences without computer control or GPIB communications slowing things down. Sweep solutions greatly accelerate testing with automation hooks. Three basic sweep waveforms are provided that can be programmed for single event or continuous operation. Other capabilities of the interface include:. All SourceMeter SMU instruments include Keithley's unique Trigger Link interface which provides high-speed, seamless communications with many of Keithley's other instruments.

SourceMeter SMU instruments can make standard 4-wire, split Kelvin, and 6-wire, guarded ohms measurements and can be configured for either the constant current or constant voltage method.

The 6-wire ohms technique:. View Cart My Account Request for Quote. Advantages of a Tightly Integrated Instrument By linking source and measurement circuitry in a single unit, the offers a variety of advantages over systems configured with separate source and measurement instruments. Standard and Custom Sweeps Sweep solutions greatly accelerate testing with automation hooks.

keithley 2400 scpi example

Other capabilities of the interface include: - Tight systems integration for applications such as binning and sorting - Built-in component handler interface - Start of test and end of test signals - 5V, mA power supply Trigger Link Interface All SourceMeter SMU instruments include Keithley's unique Trigger Link interface which provides high-speed, seamless communications with many of Keithley's other instruments.

Unique 6-Wire Ohms Technique SourceMeter SMU instruments can make standard 4-wire, split Kelvin, and 6-wire, guarded ohms measurements and can be configured for either the constant current or constant voltage method. The 6-wire ohms technique: - Uses guard and guard sense leads in addition to the 4-wire sense and source leads - Locks out parallel current paths when measuring resistor networks or hybrid circuits to isolate the component under test - Allows users to configure and plot data easily from themaking characterization of two, three, and four terminal devices a snap.Create a Balanced Measurement.

Channels, Windows, and Measurements. Triggering the Analyzer. Setup Phase Control. Configure an External Source. Guided 2-Port Comprehensive Cal.

Perform a CalAllChannels Calibration. Perform Unguided Cal on Multiple Channels. Perform an ECal User Characterization. Perform a Source and Receiver Power Cal. Create and Cal a Noise Figure Measurement. Create a Pulse Profile Measurement.

Create a Wideband Pulse Measurement. Upload and Download a Segment List. Perform Linear Interpolation. Setup Measurements. Catalog Measurements.

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Create an S-parameter Measurement. Create an FOM Measurement. Setup Sweep Parameters. Setup the Display. Setup a Measurement. Setup RxLeveling. Setup Markers. Calibrate All Channels. Guided 2-Port or 4-Port Cal. Guided ECal. Guided Mechanical. Guided 1-port Mechanical Cal on Port 2. Guided TRL. Global Delta Match Cal.

The Rules and Syntax of SCPI

Unguided ECal.All rights reserved. Cleveland, Ohio, U. Document Number: S Rev. Although some instruments and accessories would normally be used with non-hazardous voltages, there are situations where hazardous conditions may be present.

This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury.

If the circuit is capable of operating at or above V, no conductive part of the circuit may be exposed.

Instrument Control (GPIB, Serial, VISA, IVI)

Do not connect switching cards directly to unlimited power circuits. They are intended to be used with impedancelimited sources. When connecting sources to switching cards, install protective devices to limit fault current and voltage to the card. Always read the associated information very carefully before performing the indicated procedure. Such damage may invalidate the warranty. Instrumentation and accessories shall not be connected to humans.

keithley 2400 scpi example

Before performing any maintenance, disconnect the line cord and all test cables. Rules to navigate menus Editing source and compliance values Toggling the source and measure display fields Disabling front panel display Configuration menus Front panel data store Storing readings Recalling readings Buffer statistics Command reference D-5 Data lines D-5 Bus management lines D-5 Handshake lines D-5 Bus commands G-5 Message available G-5 General operation notes If you have any questions, please contact your local Keithley representative or call one of our Application Engineers at U.

Manual addenda Any improvements or changes concerning the instrument or manual will be explained in an addendum included with the manual. After unpacking all items from the shipping carton, check for any obvious signs of physical damage that may have occurred during transit.

There may be a protective film over the display lens, which can be removed. Report any damage to the shipping agent immediately. Save the original packing carton for possible future shipment. The Model is 1m long. Model trigger link cable — The Model is a male to dual-female trigger link cable.

Rack mount kits Model single fixed rack mount kit — Mounts a single SourceMeter in a standard inch rack. It has 0. See Appendix A for specifications.


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