Serial Port Interfacing with LabVIEW. LabVIEW Interfacing. Cable Connectors DB-9 Connector. Pin-outs A Data Communications Equipment (DCE) can be interfaced to a Data Terminal Equipment (DTE) using a straight through serial cable. Typically, PC's are defined as a DTE and peripherals are defined as DCE. To interface a DCE with another. Also, you should take a look at the examples in LabVIEW for serial communications. DTE (Data Terminal Equipment) and DCE (Data Communication Equipment). An RS-232 communication link was expected to have a piece of DTE at each end with DCE in the middle. Can some one help me with some examples of performing serial communication classes. Looking at the examples under serial communication in LabVIEW is an excellent starting point. LabVIEW VISA Tutorial. Communication must be established with the Resource Manager at the beginning of any. LabVIEW Tutorial with Serial Connection. Browse other questions tagged serial-port labview serial-communication or ask your own question.
Hello friends, hope you all are fine and having fun with your life. Today’s post, as the name suggests is about How to Display Serial Data on Real Time Graph in Labview. In our previous post, we have seen that how to Get Continuous Data From COM Port in Labview. Today’s post is a sequel of this previous post so I would recommend that if you haven’t had a look on that post then first visit it as I am gonna start today’s post from where I stopped the previous one.In the last post, we were able to get the continuous data from COM port using Labview and we have also separated the data based on a character which I have used this one “,” i.e. comma. Now, suppose you are sending 3 values from your COM port and these are the sensors’ values so tthe best way to display these value is by using a graph. In the last post we separated the values and displayed them in a 1D array, so today we are gonna display those values in a graph. As I have taken three values so today I am gonna plot 3 graphs. Each graph will show one of the values and display them in real time. Let’s start it.
Display Serial Data on Real Time Graph in Labview
- In the last post, we have the below vi at the end. This vi get continuous data from the COM Port and then display it in the Response and the 1D array.
In the above image, the Data 1D displays the values separately and differentiate it on the basis of a characters “,” i.e. comma.In other words, Data 1D has a array, which consists of three values coming from the serial port.So if like we have sent the values 120,221,312, then the array(0) will have 120, array(1) will have 221 and finally the array(2) will have 312.In order to plot the values on the graph separately, what we need to do is to simply get array(0) and then plot it vs time and so on, which is shown in below figure:
Serial Communication With Labview Tutorial Data Pdf
- As you can see in the above figure, the logic we used is quite simple, what we did is we simply get the array just before Data 1D and then broke it into parts i.e. array(0), array(1) and array(2) and then fed it to the Graph plots.
- In this particular example I am using accelerometer IMUv2 and displaying its values on the graph.
- After adding these blocks you are done. Now press Ctrl+T and open the Front Panel. My front Panel looks like as shown in below figure:
Now first of all select the COM port from which you are receiving the data. If you can’t find yours, then click on the Referesh, you will find in the drop down.Now, run the vi and then click on the Start button and you will start receiving the values. The values will be displayed in the Response as it is and then in the Data 1D and will also display on these graphs separately as shown in the below figure:
- Now, you can see the data is displayed. In this vi, we have displayed the data in three formats:
- Response: It shows the complete data coming from the Serial Port.
- Data1D: It separates the data and then displays it in digital format.
- Graphs: They plot the real time graph of the coming data.
Free Labview Tutorial
I have attached the vi below for download but I would recommend you guys to design it by yourself so that you learn the most out of it.
Download the Labview vi
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Category: LabView TutorialsBy Syed Zain Nasir16 Comments
Labview Tutorial 7.1
Author: Syed Zain Nasir
https://www.theengineeringprojects.com/
I am Syed Zain Nasir, the founder of <a href=https://www.TheEngineeringProjects.com/>The Engineering Projects</a> (TEP). I am a programmer since 2009 before that I just search things, make small projects and now I am sharing my knowledge through this platform.I also work as a freelancer and did many projects related to programming and electrical circuitry. <a href=https://plus.google.com/+SyedZainNasir/>My Google Profile+</a>