Communication lecteur RFID et labView

Bonjour je travaille sur un projet RFID je viens de commencer je veux savoir comment se programme un lecteur RFID à partir De LabVIEW? quelle est la structure des trames et le mode de dialogue PC/lecteur avec labview merci

Salut,
Tu trouveras la réponse à ces questions dans la datasheet de ton lecteur RFID.
Reg

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How to communicate symbol ms4407 borcode in LabVIEW RS232

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Are you wanting to read barcodes into LV? If so there are menu vendors that make scanners with serial interfaces.
Mike...
Certified Professional Instructor
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LabVIEW Champion
"... after all, He's not a tame lion..."
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How can I do to communicate to parallel port using labview 5.0 and NT ?

I am trying to write and read from parallel port using Labview 5.0. It does not work with NT.
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If you are trying to use In/Out port functions that come with LabVIEW they will not work with NT. I think the AccessHW file at the following link will fix that problem:
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Using existing c code for usb-hid communication in labview

Hello,
I want to write a simple temperatrue logger using labview and a external hardware which communicates over usb-hid. The external hardware uses an ATMEL 90USB162 µC and DS18B20 sensors.
Link to the hardware:
http://www.diamex.de/dxshop/USB-Temperatur-Sensor-Tester-fuer-DS18B20
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Is it possible to include this c-code in the labview application to simplify the communication?
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Michael
Solved!
Go to Solution.
Attachments:
CMDLINE.zip ‏17 KB

I'm not that experienced at this personally (in terms of compiling C code into DLLs), but I believe the process you need to go down to call your C code in LabVIEW is to compile the C code into a DLL which you can then call from LabVIEW using a Call Library Function node (or you can try to use the "Import Shared Library" wizard to automatically generate SubVIs).
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http://digital.ni.com/public.nsf/allkb/DCB90714981A1F148625731E00797C33
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NI Days (and A&DF): 2010, 2011, 2013, 2014
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PLC Communications with Labview

How do I view and record data from my plc to labview, currently we are using autmation directs DL205 with the 260 processor

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Message Edited by Adnan Z on 03-15-2007 10:27 AM
Adnan Zafar
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Serial Communication problem in LabVIEW 7.0

I recently upgraded my test computer from a 450 Mhz machine to a
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E-mail [email protected]
Attachments:
Serial_Test_1.vi ‏45 KB

Greetings!
Serial port commucations problems can be a real joy, can't they? Have you tried communicating with your instrument with Hyperterm? Usually Hyperterm is capable of operating with almost no overhead, so you can see if there's any strange symbols being transmitted that might be holding things up. There might be an extra CR being inserted, or something like that, which will show up as heiroglyphics in Hyperterm. See if all your symbols coming back are valid. This is where I usually start.
Hope this helps.
Eric
Eric P. Nichols
P.O. Box 56235
North Pole, AK 99705

What communications protocols does LabView support?

A customer of mine is using LabView. He has asked me if I can communicate to it using a PLC. Either GE Fanuc or Allen-Bradley. I need to know what methods of communication that LabView has available to talk to these PLC's.

The short answer is: whatever protocol you want to talk...
I have developed applications talking to AB stuff, modbus (which will cover most PLCs) and even TI's old proprietry PLC protocol. There are lots of tools for making the connection in lots of ways.
What are they specifically needing--or do they know yet?
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

Labview data communication c borland builder ram memory

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greeting paul

There are two ways to do this:
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Irene
[email protected]
www.hytekautomation.com

Communication via RS232 with a Kollmorgen Servostar 300 using LabView.

Hello,

Sorry I am new posting a message here and I post it before I was able to describe my problem.
I have a Kollmorgen Servostar 300 to control an AKM24F motor and I would like to send the instructions to the controller via RS232 using LabView. I think I had achieved communication from a PC to a Servostar 300 using LabView via the serial port.
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So far I am not sure if the way I am trying to communicate with the servostar is the correct or if I am missing something, any guidance that anyone my give would be greatly appreciated.

Interprocess Communication C++ - LabView

Hi,
I have a C++ *.exe file wich is grabbing images with a Matrox framegrabber. This program ist startet via "system exec" from LabView. I want to do a kind of time measurement with this program so i need the exact time when the grabbing of frame starts. At the moment I dont know how long the *.exe file needs to initialize the framegrabber (something about 500-1000ms).
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Hi,
What
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Shameek wrote:
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<snip>
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USB RAW Control Communication in LabVIEW

Iam trying to open the zipped file by NI "USB RAW Control Communication in LabVIEW".The VI is attached below.It recognized my raw device in VISA Resource Name.Iam using a pendrive.But while running it shows an error 'VISA: (Hex 0xBFFF0072) The resource is valid, but VISA cannot currently access it.'I learned this problem from some discussion forums in labview,but can't find a solution.Plz help.Post your valuable suggestions........Also in that example how we will give the request,request type,value,index etc:-.What does it indicates?
Thanks as kudos only
Attachments:
USBRawControl.vi ‏152 KB

STOP creating multiple posts for your question!
http://forums.ni.com/t5/LabVIEW/Requirements-to-read-from-a-USB-port/td-p/1959445

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Hi,
I am trying to use a Diolan DL2-N USB to I2C/SPI/GPIO adapter (https://diolan.com/dln2). This manufacturer provides Labview drivers for the board as well as example VIs. I just want to use them to access to all interfaces via Labview. After that I will design a test setup for our last product line using this adapter board.
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1) Fresh install of Labview 2014 (evaluaton version). System: DELL Precision M6800 (i7) , Windows 7 Professional SP1.
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Any hint?
Regards,
Jose
Solved!
Go to Solution.

Hi again:
I' m putting pressure on the manufacturer to provide support, but still I have some very basic questions that I think a Labview expert should be able to answer.
Attached are the driver files provided by the manufacturer along with install instructions (which I do not fully understand). I assume the iinstall description is based on a standard procedure to install third party instrument drivers , but still don't know what to do with the dln.net.dll file (I just copied it in the /Labview 2014/instr folder). Any hint?
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Regards
Jose
Attachments:
DlnLibrary.Net.llb ‏574 KB
readme.txt ‏2 KB
dln2_drv.zip ‏338 KB

Serial communication works in hyperterminal but not in LabView

Hello,
I am trying to control an APP Automated Pressure Controller using LabView 6.1 via a serial connection. I am able to control the system with Hyperterminal but not with LabView. I set used the same setup (9600 baud, 1 stop bit, no parity, no flow control, etc) in LabView that worked in hyperterminal.
According the the documentation from the Pressure Controller: "Every character that is sent to the controller is echoed back to your computer so you can check to see everything is working. When a valid command is given, the controller will also send a carriage return (acsii 13) followed by a line feed (ascii 10) to signify the command was executed. Before sending any commands, the program should clear any characters in the input buffer that may be there from previous responses."
In hyperterminal, when I type in a command such as "OA", the Pressure Controller responds (without pressing enter or any other keys) and I can see the "OA" on the screen. As soon as the Controller is done responding, the cursor moves down to the next line (which I assume is caused by the carriage return and line feed) and waits for the next command.
I have tried to use the Serial Communication.vi with no success. Does Hyperterminal add (or Labview omit) a special character or command that I am missing? Do I need to do something special to clear the input buffer in LabView?
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Hello,
Try to run your application in other system (computer),
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to set it true and assign a 0A Hex Value.
For sending information you need to finish all command
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Good Look

Labview : Communication série avec un périphérique

Bonjour,
Sous Labview, j'essaie de communiquer via un port série à un périphérique. En parallèle, j'essaie de recevoir et d'envoyer des données. Je voudrais me placer en mode écoute (Activer la réception sur ce port : Visa read) puis envoyer une commande (Visa write). De ce fait, en se plaçant en écoute avant l'envoie de la commande, je suis sûr de recevoir la réponse du périphérique.
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Comment réaliser des tâches multiples en parallèle sur LabView ? Auriez-vous un exemple ou plus d'information à ce sujet ?
Merci,
Jérémy

Bonjour,
je confirme le fait qu'un UART ne peut pas travailler en "parallèle".
Pour dialoguer avec un équipement, il faut envoyer une commande "Write" si besoin, pour que le produit te réponde.
Tu récupères ensuite la réponse avec un "Read".
Pour dimensionner le nombre de données à lire, plusieurs méthodes par la suite se présente à toi.
- Attendre un certain temps : Interruption de la lecture sur timeout
- Attendre un caractère de terminaison \A : 0xD par défaut.
- Lire un certain nombre d'octet : Utilisation du noeud de propriétés nbre de bytes sur la liaison fortmeent conseillé.
Si après une manipulation simple, tu ne relies pas de données, n'hésites pas à mettre une temporisation de 100 ms entre ta requête et ton écoute, il n'est pas rare d'avoir des équipements avec un temps de réponse de l'ordre de 50ms sur port série (spécification présente dans la documentation de l'équipement en général).
Bonne journée,
Michael

Communicat​ion lecteur RFID et labView

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Communication lecteur RFID et labView