Labview Serial Port Tutorial
This instructable is a quick tutorial explaning how to connect your Arduino to LabVIEW. Arduino and LabVIEW. VISA Configure Serial Port is inside the while.
Overview of Serial Bus Serial is a common device communication protocol for instrument control because most computers and many remote instruments include at least one serial port. Single applications can be used across a variety of instruments with few modifications, reducing programming and test time. For more information on the serial protocol, including information on transfer speeds and important parameters, please refer to. Connecting and Setting up a Serial Instrument Control System Engineers typically use serial to transmit American Standard Code for Information Interchange (ASCII) data. All data types are converted to strings of ASCII characters and then transmitted bit by bit across the serial bus.
Labview Tutorial Pdf
For two ports to communicate, both the instrument and the controlling computer must have the same baud rate, data bit size, stop bits, and parity. A basic serial instrument control system consists of three parts: 1. PC (or controller) with a serial port 2. Serial cable 3. Serial instrument As mentioned, most computers include a serial port.
The only hardware setup required is connecting the serial cable to the serial port on the PC and the serial port on the instrument. The serial instrument may include some hardware drivers or software utilities for communication, and should include documentation on the baud rate, packet size, stop bits, and parity bits that the instrument will use. Additionally, check the National Instruments to see if LabVIEW drivers already exist for your instrument, as well has tutorials on how to use them. To confirm that the serial port on your computer is working properly, refer to, to see how to perform a serial loop back test. How to Create a VISA Resource for the Instrument in MAX With NI-VISA, communicating with your serial instrument is easy.
To confirm that you are able to communicate with your instrument, open Measurement & Automation Explorer (MAX) found at StartProgramsNational InstrumentsMeasurement & Automation. MAX Main Menu Expand the Devices and Interfaces subdirectory below My System. Below it you should see all the serial and parallel ports on your computer.
In this example the computer has one serial port (“COM3”). Figure 2 shows the directory path to the serial port and the configuration window when COM1 is selected. Serial Port Configuration Window From this configuration window you can change the VISA Alias for easier identification and you can also communicate with your instrument through a VISA Test Panel by selecting Open VISA Test Panel. Your instrument should have specific commands for collecting and transmitting data and you can use the VISA Test Panel to test these functions and verify that they are working properly. Using NI-VISA to Communicate with Your Serial Instrument NI-VISA makes serial instrument programming fast and easy. VISA Open, VISA Read, VISA Write, and VISA Close are the basic VISA functions in LabVIEW used in the example VI in Figure 3.
This example opens a VISA session to a serial device. A command is written to the device, and the response is read back. In this example the specific command being sent is the ID query for the device. Check with your device manufacturer for your device command set. After all communication is complete, the VISA session is closed. LabVIEW Serial Program Using NI-VISA NI-VISA provides built in serial examples to assist users with application design and development. Serial examples for LabVIEW can be found the in LabVIEW Example Finder by navigating to Help Find Examples Hardware Input and Output Serial.
The Readme file for each NI-VISA version provides more information on where to find LabVIEW Serial examples. Serial examples for.NET, C and VB6 can be found by navigating to Start All Apps National Instruments NI-VISA Examples. Related Resources.
Kommentare.
Hello friends, hope you all are fine and enjoying good health. Today’s post is my first post on LabView Software. I have worked on LabView quite a lot in past but these days I am continuously working on LabvView so I thought to write some tutorials on it.
In today’s tutorial, I will explain in detail How to get continuous data from COM Port in LabView software. LabView is a very handy tool for the engineers. One can easily plot graphs and can work on different hardware modules with it. One of the best feature of LabView is its extensive help desk.
There are many examples present in it which are ready to run and can help a lot, moreover their online is also very extensive. I got into many problems while working on it and I never get stuck, I just searched online and got the solutions for my problems. So, my suggestion is, if you are working on LabView then give Google a chance to help you out, if you stuck in something.
Let’s start today’s post, in today’s post we will receive data from serial port and show it in LabView software. In order to do so, first of all you need to download LabView software, you can easily download it from their official website. They offer a trial period of around 45 days for the students and after that you have to buy it. Now, follow the below steps carefully and if you find any trouble anywhere, let me know in comments and I will try my best to sort them out. Steps to Follow. First of all, you need to download the. NI VISA driver is used for serial communication, without downloading this software you can’t communicate with the serial port of your computer in LabView.
LabView has extensive list of drivers, whenever you want to communicate with any hardware in LAbview then you have to download its driver, NI VISA is the driver for communicating with serial port. Mafia games full versions for pc. After downloading this driver, install it and now run your LabView software.
When you run LabView, it will appear as shown in the below figure. Note:. I have given the complete working vi to download at the end but I suggest that you should design it by yourself so that you learn how to design. Now, click on the Create Project Button and the below Window will pop up. Now click on the Blank VI Template and click Finish. A blank vi will open up, we will design the complete project in this vi.
These are two windows, one is called the Block Diagram, where we will place all the components and the second one is Front Panel, where user can interact with LabView i.e. The Serial data coming will be displayed in the Front Panel.
Another small window will also be there, this window is used for getting blocks. Now design a vi as shown in the below figure. Note:. If you don’t select the correct Com Port then it will give error and won’t run so select the correct COM Port name. Now, the COM Port I am using is COM5 and you can see Start Reading button is also ON. Response is showing the complete data whatever is coming from the Serial Port, while the Data 1D is splitting the data and showing each data in each box and the separation character I selected is “,” (comma).That’s all for today, now play with the vi and I hope you will find it really amusing. In order to download the complete working vi click on the below button.
Labview Serial Communication Tutorial
In the next post, I have discussed how to.Displaying data on graph is usually required in most of the projects. So have a look at it.