Gpib Commands Python


August 14, at Browse Main page Recent changes Random page Help. The Linux GPIB Package is a support package for GPIB (IEEE 488) hardware. HP4155A Python GPIB Control Software Projects This is a bit of an ongoing project, so documentation for now is rather sparse, and I apologize for that, but hopefully I’ll finish and be allowed to open-source this. BOARD) or GPIO. You used to need to purchase a National Instruments setup to do all that, limiting it to larger companies that could afford it. Chapter 5 - Programming via GPIB and VXI gives guidelines to use VISA to communicate over the GPIB, GPIB-VXI, and VXI interfaces to instruments. For instrument interfacing, Python package PyVISA is used to control all kinds of measurement devices independent of the interface (e. IEEE 488 was created as HP-IB (Hewlett-Packard Interface Bus) and is commonly called GPIB (General Purpose Interface Bus). visa Sign in or create your account; Project List "Matlab-like" plotting library. The command eig has the same functionality in Octave and FreeMat as in Matlab for computing eigenvalues and eigenvectors, whereas Scilab uses the. As a programming environment we take the one that is free to use – Python in PyCharm. For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit under test. Use the PXI keyword for PXI and PCI resources. The following examples are currently available: Getting Started - this simple example shows the "basics" of getting connected to and communicating with an instrument. Traditionally, this was an ISA or PCI card, but nowadays it is more often a USB-GPIB bridge. The code can define global variables or statements that are outside of function definitions. The chapter also includes information on creating sessions, using formatted I/O, events, etc. GPIB USB Adapter Driver Library 1 SCPIMultimeter - Generic multimeter using standard SCPI commands¶ class instruments. On MacOSX, you should install the NI-488 library from National instrument. send and gpib. For remote long-time (days and weeks) it's useful to setup automatic script to perform add the monkey job. To convert a binary block of data to 32 bit integers in Python/Numpy, read this. See thePyVISA manualfor more information. Supports Firmware Revision: A. The free python language, a low cost USB to GPIB interface and a basic driver written in python allows live instrument control from a command shell. 0とPythonバージョン2. It brings these files to a web platform where they can be searched, googled, and easily accessed. The USB test and measurement specifications provide the information necessary to communicate with compliant instruments. As an example, reading self-identification from a Keithley Multimeter with GPIB number 12 is as easy as three lines of Python code:. Adheres to the. 5 and above. This helps ease communications to test instruments. This package contains the C source for a MEX-file that provides an interface to Nation Gettemp Reads temperature from Agilent 34970A through GPIB. I succeeded in establishing communication between my computer and the Keithely using Python. Unlike Linux GPIB, PyVXI-11 makes no effort to support GPIB hardware. For instrument interfacing, Python package PyVISA is used to control all kinds of measurement devices independent of the interface (e. I am writing my code in Python, fairly new to it and GPIB instrument control. From all different operating systems and physical connections we choose the most common case: LAN connection on Windows OS. python-scpi. It is possible that someone else could use the exactly same nickname. VISA it's a high-level API used to communicate with instrumentation buses and it's possible to use with the python language by pyvisa. Program is tested and running on Raspberry Pi with NI USB-GPIB-HS dongle. 2 completed the standard that started with IEEE 488. Using the National Instruments GPIB-USB-B on linux. Using PC to control GPIB instruments, such as oscilloscopes, multimeters, power supplies is easiest thing, as most of vendors already supply ready to use. GPIB To USB, With A Python API. The Prologix basically creates a serial port and you use standard serial comms to speak with the target instrument and the Prologix-- you don't use GPIB protocols. This site provides all sorts of documentation sourced from windows help files. Now, onto the GPIB control. This helps ease communications to test instruments. Do not touch any object that could provide a current path to the common side of the circuit under test or power line (earth) ground. It is a message to the instrument rather than to its interface. EXE is a standalone GPIB query utility intended for diagnostic purposes and batch/shortcut files. The Linux GPIB Package is a support package for GPIB (IEEE 488) hardware. If you are using test equipment that supports the GPIB interface, you can also use Python libraries like pyVISA to control them. Converting Data Structures. Getting started with Python and PyVISA. The Python command dispatch_command ('Tsample', 'setTemp', T) in Line 15 of Listing 1 executes the setTemp command of the instrument Tsample with the temperature T. See thePyVISA manualfor more information. I’m wondering if python would be a good substitute for sending and receiving signals and taking the data from these instruments and placing them into excel. For communication over GPIB interface, python-gpib and corresponding Linux kernel space driver linux-gpib must be installed. How One Programmer Is Coding Faster By Voice Than Keyboard 214 Posted by samzenpus on Sunday August 18, 2013 @06:14PM from the greased-lightning dept. I recently discovered the site and I would like to congratulate the good work done. The programming of measurement instruments can be real pain. Currently Pyvisa-py support the following resources: TCPIP INSTR. No other third party libraries I know of support direct GPIB control. An instrument will start executing commands and queries if a com- plete line of text has been received. Damage due to corrosion, customer alterations, excessive dust, extreme environmental or electrical. After searching on net thinking to have scripts in python, but pyvisa is not present on cygwin. for Statements¶. python-scpi. Sample Program. Image from Farnell. In this post we shall learn how to write a simple socket server in python. Chamber Connect Library. 9) 最近の NI-VISA は OS X でも部分的に 64 bit 対応になっているので、通常使用の範囲であれば 32 bit の Python を無理やり使う必要はありません。. If you are interested in this you probably already know what is VISA and GPIB, but here there is a short description for those that dont know about it: Basically GPIB allows you to control instruments like Power Supplies, Signal Generators, Oscillo. Re: [Discuss-gnuradio] GR, USRP, and GPIB measurements: I planned on using PyVISA but the Linux GPIB already had a python module. 1 compatibility, fixes also for problems with TRANSMIT, TArray and RArray commands). - On the command line, change into the PyVISA folder. A Python package with bindings to the "Virtual Instrument Software Architecture" VISA library, in order to control measurement devices and test equipment via GPIB, RS232, or USB. Python is a high level programming language that is suitable for small and large projects. The magic incantations, in Python are: c. Connection. Real World Instrumentation with Python J. ui (XML) window design file into a. MATLAB is a software environment and programming language with over 1,000,000 users. enter commands. gpib-devices-. python-scpi. The API of the C library is intended to be compatible with National Instrument's GPIB library. Once you've got the basics down, accelerate your instrument programming with Command Expert, Keysight's no-charge tool to interactively find and try instrument commands. 2 driver has high-level commands that automatically handle all bus management, you do not have to learn the programming details of the GPIB hardware board or the IEEE 488. This example scans and lists the available resources. A Python package with bindings to the "Virtual Instrument Software Architecture" VISA library, in order to control measurement devices and test equipment via GPIB, RS232, or USB. On GET is when the instrument receives the GPIB command byte for "group execute trigger". For remote long-time (days and weeks) it’s useful to setup automatic script to perform add the monkey job. the virtual serial port any data sent by the equipment. GPIO as GPIO and then GPIO. send(GPIB_address, "command string") gpib. Program is tested and running on Raspberry Pi with NI USB-GPIB-HS dongle. Install PyWin32. 1の上に立っているIEEE 488. 1 Power-line voltage setting 2 Power-line fuse-holder assembly 3 AC inlet 4 Power-line module 5 GPIB (IEEE-488) interface connector 6 RS-232 interface connector 7 Rear output terminals I. I am trying to use the method called read. Here, we took things another step further and. vna --visa gpib --address Python script. 10Hz to 1MHz logic analyzer and recognizes many protocols. When installing python modules globally you should prefer to install distribution provided python modules using yum because they are tested to work properly on CentOS 7. I'm not sure the order to use the WAI and OPC commands. You establish a connection with the signal generator and then send or receive information using SCPI commands. For remote control in Python (2. In a nutshell, commands sent to the Prologix are forwarded to the GPIB instrument (and replies form the GPIB instrument are forwarded back to the controlling computer). I can also verify that the requested action is performed on the instrument. Short details of Python VISA -- control GPIB, USB, Serial: A Python package with bindings to the "Virtual Instrument Software Architecture" VISA library, in order to control measurement devices and test equipment via GPIB, RS232, or USB. The company I currently work for utilizes c# and labview. Follow this link to National Instrument's page for LabVIEW Plug and Play drivers: NI X-Stream LabVIEW Drivers. On all systems with GPIB device drivers, GPIB support is available through gpib-ctypes. ResourceManager extracted from open source projects. GPIB To USB, With A Python API. For a printable electronic copy of the. Here, we took things another step further and. Real World Instrumentation with Python J. I am writing my code in Python, fairly new to it and GPIB instrument control. Its provided in case of problem to do it manually. between a device and next device) Text mode commands. GPIB, RS232, USB, Ethernet) using different backends. These programs can be run from IB ASIC or an external computer. 1の上に立っているIEEE 488. First it's important to have a copy of your oscilloscopes Programmers manual. command - SCPI command to be sent to the instrument. sourceforge. To discriminate your posts from the rest, you need to pick a nickname. The Python programming language actually started as a scripting language for Linux. py script file into your. 2 controller for up to 14 programmable GPIB instruments. Command reference shown below in table. LabVIEW is a platform and development environment for graphical programming for measurement and automation. There are many different protocols, sent over many different interfaces and bus systems (e. it is not just a GPIB device as it needs some extra commands). Raspberry Pi is a sensational single-board computer (SBC) and. The Linux GPIB Package is a support package for GPIB (IEEE 488) hardware. Getting started with Python and PyVISA. You should also be able to see in lines 9-19 that the command "RAD:ARB:STAT ON. In this video I show you the basics of programming GPIB instruments. For every programming language you want to use, you have to find libraries that support both your device and its bus system. logic analyzers, oscilloscopes, and many more). 対話的な操作ができる。. If you are using VISA and/or GPIB, this is available from the command line as well. 1 Functions of each item Fig. The 4895's commands are similar to Hewlett-Packard's. A Talker sends data messages to one or more Listeners, which receive the data. The 4895's commands are similar to Hewlett-Packard's. # pip install python-vxi11 python-usbtmc. Was hoping someone else had done it :). VISA is a standard for configuring, programming, and troubleshooting instrumentation systems comprising GPIB, VXI, PXI, Serial, Ethernet, and/or USB interfaces. MATLAB extends the functionality of Agilent oscilloscopes by enabling you to analyze and visualize live or acquired oscilloscope signals, make application-specific measurements, create and apply your own filters and equalization methods, and automate tests. There are many different protocols, sent over many different interfaces and bus systems (e. net GPIB driver. Chapter 12: TRIGger Subsystem This chapter explains how the TRIGger command subsystem is used synchronize device actions with events. sci-libs/linux-gpib python doc. Open MAX by going to Start»Programs. Image from Farnell. This command opens a gpib device using the gpibDeviceAddress property. Setting up and using Agilent 82357B GPIB USB pod in RPi Linux Download script to your src folder and execute script by python. • Set the RS-232 baud rate and parity (see chapter 3). But pcmia is normally just used in old computers so it doesn't matter. We created a serial communication line by using the PySerial API and a Prologix GPIB-USB controller to connect the HP Agilent 34401A Multimeter to the computer. 3です NIビット度は32. demonstrated as a rapid development programming environment for measurement automation using the GPIB interface common on many instruments. When you execute the command, the multimeter presets the best settings for the requested configuration (like the MEASure? command). Most of the HP 9845 periperals such as mass storage, graphics devices or printers can be connected via the HP 98034 HP-IB interface. Python bindings will not be built&installed unless you have libboost-python. 2 illustrates the items which are shown in the Fig. Do not touch any object that could provide a current path to the common side of the circuit under test or power line (earth) ground. To convert a binary block of data to 32 bit integers in Python/Numpy, read this. The telnet session uses the signal generator port. Use the PXI keyword for PXI and PCI resources. PAM4 Analysis Software User Manual www. Read about 'Step-by-step guide how to use GPIB with Raspberry Pi Linux' on element14. list_resources() to print a list of visible instruments. You can see in lines 9-31 above that Python is being used to access the instrument. Our Python application is using PySerial to successfully control several other devices in this way (Stanford Research SR510, EIP 535), but our efforts to work with the 331 consistently fail in several ways. Instruments under control are:. What we are going to do is do use Python with Telnet and LAN to directly send SCPI commands to my instrument. We created a serial communication line by using the PySerial API and a Prologix GPIB-USB controller to connect the HP Agilent 34401A Multimeter to the computer. I'll try writing a python wrapper. Perusing these documents, one can readily understand why a dynamic library between Python and libusb or a substantial. The API of the C library is intended to be compatible with National Instrument's GPIB library. 測定器メーカのサンプルプログラム例もあるしGUIも作成しやすく配布も楽です。なんですがここではあえてPythonを利用した測定器制御について紹介しようと思います。 Pythonを推す理由としてはざっと以下です。1. On all systems with GPIB device drivers, GPIB support is available through gpib-ctypes. Programming C/C++ Java Python Scratch Other programming languages Windows 10 for IoT Wolfram Language Bare metal, Assembly language Graphics programming OpenGLES OpenVG OpenMAX General programming discussion; Projects Networking and servers Automation, sensing and robotics Graphics, sound and multimedia Other projects Gaming Media centres. New asyncio version. viVPrintf(param1, param2, param3) Parameters. I don't know much about Python, but I recognize the dot operator and realize that after importing gpib, I should get some functions at my disposal. Gpib card driver and visa32 free zip 8th grade staar test category 5 review. Instrument Control works with General Purpose Interface Bus (GPIB) controllers [4] from major vendors (National Instruments, Agilent, Prologix), it. As part of my experiments on Python PC interfacing, I managed to borrow an equiptment having a GPIB port. VISA is a standard for configuring, programming, and troubleshooting instrumentation systems comprising GPIB, VXI, PXI, Serial, Ethernet, and/or USB interfaces. The program has the following features:. Python VXI11 Documentation. First I installed the cable driver given by Keithley. The analyzer responds to three types of GPIB commands: 1. Chamber Connect Library. Pyexp - Python for Experiments - #1 TACO/TANGO Workshop 14-15 November 2001 Pyexp - Python for Experiments by Laurent Pointal laurent. sleep() statement after each write() operation. In any of these case, the Visa (and sometimes another underlying vendor library) are what knows how to command these devices to produce GPIB transactions. I am totally new to this area of GPIB programming and have very little knowledge about related stuff. Also set the voltage soft limits to 7. As a system and application engineer, I've saved countless hours by automating measurements with software such as LabVIEW. 1 Bus-management Commands. PyVISA Python package that enables you to control all kinds of measurement devices independently of the interface (e. c' file has tentatively been modified to work with the linux-gpib. py Python script file. This post is intended to help those that need to connect to a GPIB device, such as an oscilloscope, using theirs standard PC with an USB connection and an USB-to-GPIB device (such as the National Instruments GPIB-USB-B or GPIB-USB-HS). Let n be any power raised to base 2 i. Dartmouth BASIC revolutionized computer programming for the non-experts, who greatly outnumber the experts! It was a simple language, used English words, and gave almost instantaneous response in the days when turnarounds of hours or even days was the norm. Use the ASRL keyword to establish communication with an asynchronous serial (such as RS-232 or RS-485) device. GPIB is widely used for enabling electronics test equipment to be controlled remotely, although it was also used in a many other applications including general computer communications. The emphasis on part 1 is on using an HP 80 series computer. Let n be any power raised to base 2 i. Python offers several options to run external processes and interact with the operating system. Sending the MEASure? command is the same as sending a CONFigure command followed immediately by a READ? command. Program is tested and running on Raspberry Pi with NI USB-GPIB-HS dongle. For every programming language you want to use, you have to find libraries that support both your device and its bus system. GPIB commands are converted to serial Modbus commands that are transmitted over RS-232. The self parameter refers to the instance of the object (like this in C++). rst GPIB interfacing using Agilent 82357B on Ubuntu Linux I initially had some problems installing on my laptop, so decided to boot Ubuntu 12. Reading the Programming guide the interested hacker can found that using VISA i. See thePyVISA manualfor more information. It is also important to set the programming language of the multimeter to your preference - in our case, we chose SCPI. Python pyVISA GPIB connection issue. I purchased the Prologix USB to GPIB Controller to talk to an old temperature controller in our lab using LabView. com 077-0301-00. What is TekVISA and how can I use it to communicate with and control my instrument? VISA is an acronym that stands for Virtual Instrument Software Architecture. Instrumentation with Python. What I've been reading agrees with AR2's experiences. py supports: Agilent 3561A Dynamic Signal Analyzer HP 34401A Digital Multimeter Tektronix 644 Oscilloscope. For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit under test. How much time does it take to learn Python from zero. double fDat[50]; viPrintf(vi,"%,50f",fDat); viVQueryf ;list pars , Array Size. But when I tried to run GPIB. 4895 Basic Commands are ASCII strings that the user outputs from his program using any program language or operating system. If you are using test equipment that supports the GPIB interface, you can also use Python libraries like pyVISA to control them. The MarDTB drivers have been modified to take into account a change in the format of the 'status_dump' command used by the MarDTB's internal operating system. These are not hardware drivers. 现在市场上有很多中usb-gpib 控制器,或叫 usb 转gpib链接线。 每种gpib控制器都有它的 函数库(dll库)。各种gpib 控制器的价钱插别很大。这里以一种价钱较便宜的usb-gpib 控制器ugsimple usb-gpib 控制器为例,看它的VBA编程时怎么用的。. Communication. NET component and COM server; A Simple Scilab-Python Gateway. Python can actually submit SCPI commands too fast for some instruments. I thought I would simply be able to open a port, and send SCPI commands to configure and aquire values. write and x. This script uses a GUI to connect to a scope listed by your VISA as resources and allows you view the display of the instrument (hard copy) at a refresh rate limited by communication speed of the PC to the scope and PC handling displaying of the image. Method returns a Python. These protocols both provide mechanisms to send ASCII commands, such as Standard Commands for Programmable Instrumentation (SCPI), along with other familiar GPIB operations. viVPrintf(param1, param2, param3) Parameters. Preface vi warranty period, the repaired product will be returned at the customer's expense using the customer's requested shipping method. MATLAB and Simulink support GPIB communication through Instrument Control Toolbox. As a programming environment we take the one that is free to use - Python in PyCharm. As a programming environment we take the one that is free to use – Python in PyCharm. Working around VISA on your own would take some effort. Connection. SCPI (Standard Commands for Programmable Instruments) keeps programming fast and simple. The Python code PyserialToWorksheet is attached here as well. Many vertical market instrument makers also rely on IEEE-488 for data communications and control. Due to a license issue there are two python bindings for Qt: PyQt and PySide. Use the ASRL keyword to establish communication with an asynchronous serial (such as RS-232 or RS-485) device. That concludes the quick introduction to instrument control via GPIB+SCPI. # pip install python-usbtmc python-gpib. The GPIO package bundled with Raspbian is aimed at Raspberry Pi beginners who are familiar with Python and interested in designing IoT products. GPIB device driver library for python. Automatic Python-tool to log data to FTP. values (command, separator=', ', cast=) ¶ Writes a command to the instrument and returns a list of formatted values from the result. 私はPythonに不慣れなので、どんなガイダンスも感謝します。 ありがとう. The most important of these of course is the ability to interface with the measurement hardware, so let’s see what python instrument control packages are available. The company I currently work for utilizes c# and labview. As part of my experiments on Python PC interfacing, I managed to borrow an equiptment having a GPIB port. Typical temperature controllers are the Tenny Versatenn or the Watlow 942, 988 and F4 series controllers. (The uniqueness of nickname is not reserved. control function has the ability to encode these restrictions using validators. The emphasis on part 1 is on using an HP 80 series computer. pyc' but they are not to be found. path and the folders they. This knowledge base article introduces programming a Magna-Power programmable power product with Python programming language. Featured GPIB free downloads and reviews. There are many different protocols, sent over many different interfaces and bus systems (GPIB, RS232, USB). Agilent 82357B GPIB interface programming on Ubuntu Linux. 1の上に立っているIEEE 488. The analyzer responds to three types of GPIB commands: 1. This helps ease communications to test instruments. Python See MinimalModbus for programming Modbus RTU in Python. The magic incantations, in Python are: c. GPIB Command Reference SERIAL NUMBERS This manual applies directly to instruments which have the serial number pre x JP1KE. 1(1987年6月)では、基本的な文法とフォーマット規約を提供し、同様にデバイス独立コマンドやデータ構造、エラープロトコルなども定めた。IEEE 488. Image from Farnell. So, after a couple of hours messing with it, I finally got the counter to tell me a frequency over GPIB. I post my problem in the stackoverflow site in this link ioctl-errorno-25-in-gpib-communication-using-python-gpib. 1の上に立っているIEEE 488. There is a number of software improvements from improved reliability to additional commands. It's a Python library that takes all the standardized instrument commands and wraps them up in an easy to use API. The GPIB standard was created in the late 1960s for use with automated test equipment, and is still in use for that purpose. SCPI (Standard Commands for Programmable Instruments) keeps programming fast and simple. First I installed the cable driver given by Keithley. But, gpib_cofig fails again : # gpib_config failed to configure board main: Invalid argument What am I missing ? Second (perhaps getting ahead of myself here), what kind of interface programming can I reasonably do with this. There are many different protocols, sent over many different interfaces and bus systems (e. I’m wondering if python would be a good substitute for sending and receiving signals and taking the data from these instruments and placing them into excel. 0 and above. IEEE 488 is a short-range digital communications 8-bit parallel multi-master interface bus specification. If you do not install any extra library pyvisa-py will only be able to access tcpip resources. Using adapters to store additional Python types in SQLite databases¶ As described before, SQLite supports only a limited set of types natively. If you have one of those, be sure to check out Agilent-version of this article. For remote long-time (days and weeks) it's useful to setup automatic script to perform add the monkey job. It brings these files to a web platform where they can be searched, googled, and easily accessed. I-V Sweeps using the Keithley 2400 and LabView Start Up 1. Alternately I plan to try running python on its own to control GPIB and wait, then have waveforms acquire data and wait. I think that the Perl people are using a wrapper for the National Instruments gpib-32. BCM) What is the difference between these two options?. I am going to try that first. py' or 'Gpib. Disconnection. Open MAX by going to Start»Programs. Note that LinuxCommand. The sigrok project aims at creating a portable, cross-platform, Free/Libre/Open-Source signal analysis software suite that supports various device types (e. control function has the ability to encode these restrictions using validators. This script uses a GUI to connect to a scope listed by your VISA as resources and allows you view the display of the instrument (hard copy) at a refresh rate limited by communication speed of the PC to the scope and PC handling displaying of the image. It's user friendly interface and support for the macro language programming (REXX) makes it easy to use for Silicon bring up and automation. This is different from the GPIB connection. Windows recognized the card but didn't know what to do with it and Labview didn't know it existed. (The uniqueness of nickname is not reserved. This article uses the RPi. The program works with arbitrary adapters such as National Instruments, Agilent, Tektronix, Stanford Research Systems. visa Sign in or create your account; Project List "Matlab-like" plotting library. The module named "serial" automatically selects the appropriate backend. For remote long-time (days and weeks) it's useful to setup automatic script to perform add the monkey job. a thorough understanding of GPIB programming techniques and various RF test equipment including. 2 driver has high-level commands that automatically handle all bus management, you do not have to learn the programming details of the GPIB hardware board or the IEEE 488. Programming Example: Using VXI11 (LXI) and Python for LAN control without sockets October 08, 2018 (from GPIB to USB with just a few. But when I tried to run GPIB. py and setup. uses the command solve to produce a solution. GPIB, RS232, USB, Ethernet). Instrument-Control is a package for interfacing the outside world of hardware via Serial, i2c or Parallel interfaces. Also set the voltage soft limits to 7. Using the CONFigure Command For a little more programming flexibility, use the CONFigure command. along the way i learned a lot of GPIB compatible iEEE 488 commands, and some. I am trying to use the method called read. The Prologix basically creates a serial port and you use standard serial comms to speak with the target instrument and the Prologix-- you don't use GPIB protocols. setmode(GPIO. between a device and next device) Text mode commands. Python is a popular programming language, known for its simplicity, code readability, and not requiring any special compilation. Command reference shown below in table. Command Reference - See Table of Contents. Look at most relevant Python script for gpib in window xp websites out of 33 at KeywordSpace. Getting started with Python and PyVISA. Image from Farnell. The proposal is to create a custom Resource that handles deal. And, it was tempting for me to dive right in and start writing instrument specific commands using the default GPIB interface. VISA is a standard for configuring, programming, and troubleshooting instrumentation systems comprising GPIB, VXI, PXI, Serial, Ethernet, and/or USB interfaces. Raspberry Pi is a sensational single-board computer (SBC) and. Many GPIB/SCIP commands are more restrictive than our basic examples above. py (see end of post) for Linux. It is also important to set the programming language of the multimeter to your preference - in our case, we chose SCPI. The programming of measurement instruments can be real pain. We are having great difficulty controlling a LakeShore 331 temperature controller from a CentOS 7 system using a Prologix USB-GPIB adapter. distinguishing feature of iC is that new commands for an instrument can simply be defined in a text file which then serves as the “driver” for that instrument. Although this standard was originally designed to accommodate a GPIB bus using ASCII text strings, it can also be used in USB, Serial and RS232 and Ethernet other lesser known architectures. In most cases, you should use pip inside a virtual environment only. VISA it's a high-level API used to communicate with instrumentation buses and it's possible to use with the python language by pyvisa. SCPI means Standard Commands for Programmable Instruments.