LAN Based communication using labview

I am using sensoray 2601 module via Ethernet communication protocol,i want to interface with LabVIEW,is there any sample program/tips to interface?
Please Mark the solution as accepted if your problem is solved and donate kudoes

piZviZ wrote:
Only data rate working is 9600 between labview and launchpad(arm cortex m4).Where all data rates work between Arduino serial port monitor and launchpad(arm cortex m4).
Since the only thing that changed is the Launchpad, then that must be the issue. Are you sure this device can handle more than just the 9600 baud rate? Are you sure you are even setting the baud rate on this device?

Similar Messages

Problems with Serial Communication using Labview 6 and Solaris 8

I am working on a Driver for a Temperature Controller. But I am stuck at the very basics. I am using Labview 6 and the platform is Solaris 8 on a SUN Ultra 60 Workstation. I can not get the Serial communication to work. When I am running raw (uncompiled) code it works (I can read from and write to ttya and ttyb) but once compiled I get error code 37 (device not found). I have tried the following steps to fix this with no luck.
1) I made sure that the "serpdrv" file is in the same folder with the executable. I also make sure the serpdrv file is added as a support file when building the app.
2) I changed from using traditional serial VI's to labview 6's new visa functions. With these "new" VI's when
I try to initiliaze the visa device and wire a control to the "visa reference" input only 1 serial port shows up (ASRL2, missing ASRL1). I am not sure if this is part of same problem or whole new issue.
3) I reinstalled both visa and labview 6.0.2 update hoping this would help with no luck
4) I placed the following entry into the ".labviewrc" file
labview.serialdevices: "/dev/ttya:/dev/ttyb"
If anybody has had the same problem I would love to hear about it and if you have any solutions
Jamie Shea

Hi Jamie,
1. Do you have NI-VISA driver installed on the machine on which you are running this executable?? If you are trying to run the executable on the same machine on which the development program has ran fine, then you can ignore this point.
2. If you have done all the changes that are suggested by other discussions related to this topic, then try changing the Port input to Visa Serial Configure.Vi from a control to a constant and try it. In some case, I have seen this to do the trick. I think this point should solve your problem. If it does do tell me. :-))

General framework for computer based training using Labview

Hi, I work as an instructor and I am a beginner in Labview-programming.
I want to use Labview vi's that I've found here and there, in a tutorial framework, so that the student can get access to vi's in a consecutive mannner.
I believe that by adding text to simulations found here, I can make a solid tutorial in let's say signal processing for my students (military).
I would need a framework which allows me to insert vi's in a structure containg buttons "NEXT" , "BACK" and "Back to Top".
Archangel, helped me with an event structure found here, but there one can only return to the top-level. I want to be able walk back and forth from subvi to subvi , with "NEXT" and "BACK".
If one has a tutorial with many parts, it would also be nice if one could go directly to a submenu directly from the top. So that the students doesn't have to click "NEXT" a bunch of times, to reach there.
See the attached, if you don't understand what I mean.
Can somebody help me with that?
Kindest regards,
Lasse
Attachments:
Top level.zip ‏8 KB

The solution will depend on how many steps you have and how easy you want it to be to modify them. The classic way to do this sort of thing is to use a tab control with hidden tabs. Each tab is one step. As you go from one step to the next, programmatically change the page of the tab control which is visible. This works for small numbers of steps which do not have lots of code behind them. For larger numbers of steps, the tab control is replaced by a subpanel control, and the steps are independent VIs loaded into the subpanel. I would recommend this architecture if you want a generic one. You can find information on using subpanels in the LabVIEW help and here.
Good Luck!
This account is no longer active. Contact ShadesOfGray for current posts and information.

Serial Communication using Labview with Tiva C launchpad ARM cortex M4

I am able to comunicate perfectly between labview and launchpad at 9600 baudrate..When i trying to communicate with bauadrate of 115200 labview gives error "specifed state of attribute is not valid"
I tried to communicate with serial monitor comes with arduino and its well work with it at 115200 baudrate...
Awaiting for your replay!!!

piZviZ wrote:
Only data rate working is 9600 between labview and launchpad(arm cortex m4).Where all data rates work between Arduino serial port monitor and launchpad(arm cortex m4).
Since the only thing that changed is the Launchpad, then that must be the issue. Are you sure this device can handle more than just the 9600 baud rate? Are you sure you are even setting the baud rate on this device?

I am new to the ethernet communication using labview. I do not have any hardware. I have two laptop i need to send and recieve the data via these 2 laptop using labview. Kindly help me on this.

i am new to the ethernet communication using labview. I do not have any hardware. I have two laptop i need to send and recieve the data via these 2 laptop using labview. Kindly help me on this.
Solved!
Go to Solution.

Hi thanks for the help.
Actually i am trying to send 10 sine signals from server pc to client pc. So i will bundle 10 signals in server pc and send it and in client pc i am unbundling it and need to save in TDMS format.
Till unbundling i was able to do. TDMS format it is saving only last value. I need to save all the values. Kindly help me on same. I am attaching both the VI.
Attachments:
Client.vi ‏62 KB
Server.vi ‏252 KB

I Require an Example for Message based communication in VXI using LabVIEW

I'm trying to use Tektronix/CDS 73A-453 for sending data to a remote terminal through MIL-STD 1553b. Please give some examples in this, as I am unable to start the project without knowing these basics. Thank You.

Hi,
If you are using LabVIEW or LabWindows/CVI you can find a driver for this instrument at this website. Select Tektronix/CDS as the manufacturer and enter 73A-453 in the Additional Keywords and hit go. This will bring up the two drivers. When you install this on your computer put it in the following directory:
C:\Program Files\National Instruments\LabVIEW 7.1\instr.lib
If you place it here the functions will show up in LabVIEW if you go to the Block Diagram's Functions Palette>>Instrument I/O>>Instrument Drivers. This should get you started. If you have more questions please repost.
JenK

Process Failure when communicating over MODBUS using LabVIEW 2011 and DSC

I'm currently trying to read from a PLC's holding registers using MODBUS/TCP. I've confirmed that the PLC is updating the values and responding to MODBUS communication correctly using a third party program called Modbus Poll. However, when I try to poll the PLC using LabVIEW's shared variable engine, I am unable to read any values from the same addresses that I'm viewing with Modbus Poll.
My setup simply consists of a PC connected directly to the PLC over Ethernet, with no router in between. I am using LabVIEW 2011 SP1 with the DSC module.
I opened the NI Distributed Systems Manager to view the status of all shared variables in the Modbus library that I created and I've noticed that the CommFail bit is permanently set to "true". All other variables with a "read" access mode report "Process Failure". I've tried restarting the process as well as stopping and starting the local variable engine with no success. I've also restarted my computer several times to see if any services were failing, but this does not seem to have fixed the problem.
I finally resorted to monitoring communications over the network card that I have the PLC plugged into via Ethernet using Wireshark and I've found that while Modbus Poll is communicating with the PLC, many MODBUS and TCP packets are sent and received. However, when solely using LabVIEW or the NI DSM to communicate with the PLC, there does not appear to be any communication over the network card.
Something that may be worth noting is that I was able to communicate with the PLC and read values from it with the DSM on just one occasion, when I first figured out which addresses I should be reading from. It all stopped working shortly thereafter. Prior to this, "CommFail" was not usually set to "true" with my current configuration. Thinking that it was my firewall, I have since turned my firewall off, but this seems to have had no effect on the problem either.
Any help on this matter would be appreciated.
Solved!
Go to Solution.

Just a thought but I think the register addresses used by LabVIEW are one off of the actual register #. I was using a CRIO as a modbus IO Server and had to shift the register addresses by 1 to get things to work correctly (can;t recall if it was +1 or -1). This is documented somewhere on ni.com but can;t seem to find it now. But here is another link that may help:
http://zone.ni.com/reference/en-XX/help/371618E-01/lvmve/dsc_modbus_using/
Dan

I use LabVIEW 7.1 but I have some problem when, I use LabVEW to read the data from serial communication

I use LabVIEW 7.1 but I have some problem when, I use LabVEW to read the data from serial communication.
I use LabVIEW to read the data from serial communication then, i open the example (.vi) from Serial Communication - Advanced Serial Write and Read from LabVIEW Example. BUT it have some error message that : Error - 1073807202 occured at property node in visa configure serial port (instr).vi -> advance serial write and read .vi
this error code is undefined. no one has provide a description for this code, or you might have wired a number that is not an error code to the error code input.
I don't know why? please help me. thank you.

When I copy that code into "Explain Error" I get: "VISA: (Hex 0xBFFF009E) A code library required by VISA could not be located or loaded."
You may have a bad install of VISA or the wrong version of VISA loaded. Try re-installing VISA. You can get the latest version from the NI support site: http://digital.ni.com/softlib.nsf/webcategories/85256410006C055586256BBB002C0E91?opendocument&node=1....
Also ensure that you are not pointing the example towards a serial port that does not exist.
Please let us know what you find and what gets this working for you.
Rob

I never used LabView but need to generate a RS-233 serial output string that contains an IRIG timestamp based on a contact closure. Is LabView an appropriate tool to do this? How much does it cost to get started with the product?

I never used LabView but need to generate a RS-233 serial output string that contains an IRIG timestamp based on a contact closure. Is LabView an appropriate tool to do this? How much does it cost to get started with the product?

Labview isn't cheap, but it would certainly allow you to build a program (set of vi's - virtual instruments) that would do what you describe. Where would the timecode information come from? Your vi, or program, would: Start up, initialize the serial port, loop until a trigger happened, read the timecode (from where?), output that timecode out the serial port in a loop until you pressed the stop button. There is a free evaluation of Labview software available from NI - the base product itself runs about $995.
- Dave

Communication through RS232c serial interface using labview

i am trying to communicate with a device through RS232c serial interface using labview 6.1....i have tried to run the example "Serial communication.vi" provided in 6.1 and it doesnt work....do i need any special hardware or do i need to configure my hardware to communicate through RS232c...
thanks in advance
shri

Seems like I placed a small (maybe 30ms) delay at the end of the serialcommunications.vi structure.. for some reason my PC didn't like running as fast as it tried to go. Also look into the actual serial communication.vi and open the vi's inside it - check that the port setting (0 or 1) are ok, the baud rate (probably 9600) are ok. I'm running with only three wires in my application, TX, RX and Common. The PC may need to be rebooted to enable the com port - or use device manager and see if it says the com ports 0 and 1 are both OK..
Try buildinga loopback plug with TX to RX, RX to TX, and Common to Common and see if hyperterminal (or other serial communications program works - there is also Loopback.VI in the NI library somewhere that can be used. Good Luck!! Dave

Reading data from mlx90129 rfid tag chip by using spi communication with labview?

Hi,
i have evb90129 evalution board in that mlx90129 chip and external memory (cat25128) and three external sensors are there, i am logging data from chip by using rfid reader it ok i am reading. at the same time i configured spi communication and i am trying to read data i am reading data from internal memory not from external memory i tried but i didnt suceed , now can i use labview to read data from mlx chip and external memory. for spi communication i am using sparkfunction atmega168 microcontroller and also i have spi to usb cable? now can i communicate or i required any devies? is it possible?
thanks in advance,
biji.

I suspect the culprit to be the first parameter to your function actually. Calling another function requires the caller to allocate any buffer with a big enough size for the function to write something into. Allocate that array by using Initialize Array with U8 as type and the correct number as size. Pass this size also as read_length. While your code doesn't make use of this I think the third parameter to your function is either wrong or unnecessary.
As you use it now it is really nothing more than a local stack variable which you could declare inside the fucntion just as well. On the other hand what you probably want to do is have a function prototype like:
extern "C" _declspec(dllexport) unsigned char read_Sensor(unsigned *char read_data, unsigned long read_length, unsigned long *byte_transfered);
But you will have to do some modifications in your C code to support that parameter correctly.
That all said, doing the same in LabVIEW using VISA functions would have been done with about two VISA nodes, no DLL headaches and probably already long ago working.
Rolf Kalbermatter
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

Communicating USB using Labview VISA

I have a USB RAW device that I am trying to communicate with using labview VISA. I have had success with setting up the driver and I am able to get information from the device such as serial number, etc. When I try to use the VISA read and write commands, I have no success getting the information I want. The commands are simple: R SP<CR><LF> is a read set point command. The only thing I do get back for every command I try, is a 2 byte message "01 60"hex.
If you have any suggestions, I would appreciate it, thanks!
[email protected]

Hello Chris, I do not receive any errors and yes, I am including the termination characters in the string.
Here is what I get when I use a USB port monitor when I send out this string.
Thanks!!
[94] URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER (SUCCESS/0x00000000) 20101119150318.131 (+0)
Pipe handle: 0x87696D6C
Transfer flags: 0x00000002 (USBD_SHORT_TRANSFER_OUT, USBD_SHORT_TRANSFER_OK)
Transfer buffer MDL: 0x88C47208
Transfer buffer length: 6
Bytes transferred
0x0000: 52 20 53 50 0D 0A (R SP.. )
[94] URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER (SUCCESS/0x00000000) 20101119150318.147 (+16)
IRP status: 0x00000000 (STATUS_SUCCESS)
Pipe handle: 0x87696D6C
Transfer flags: 0x00000002 (USBD_SHORT_TRANSFER_OUT, USBD_SHORT_TRANSFER_OK)
Transfer buffer MDL: 0x88C47208

EMG based DC motor control using labview

I have a project where i need to use my EMG data to control DC motor
using labview.I've already got the EMG signal by using ADinstrument and
import the signal to labview. The problem is i don't know how to connect
the signal with DC motor. This motor will start to move when it detect
the signal exceed certain value and stop when it less that value. I'm
still new with labview and i'm using labview 8.0. Can someone help
me?thanx

Please check out our Biomedical User Group - there are similar project discussions going on there and links to the NI Biomedical Starter Kit - a free download for doing biomedical data acquisition, signal processing, and other tasks.
Steve
Visit the NI Biomedical User Group at:
www.ni.com/biomedusers

Research topic based on Biomedical application using LabVIEW

Hi..
I am faculty of Electronics Department. I have completed my M-Tech and now want to do Ph.D using LabVIEW. Can any one suggest me any topic related to biomedical application in which i can do research or develope some new hardware.
Thank you.
Regards,
Payal

Items 1, 2 (machine control), and 5 clearly are areas where LV is already used. Items 3 and 4 may be more dependent on sensor technology than on software, although obviously complete systems in those areas will include much software.
LV can be used as a tool in almost any kind of research, but the research topic choice should not be driven primarily by the tools available. The way you worded your query it is like a mechanical engineer saying, "I have a hammer. I want to do mechanical research which will make use of the hammer."
To stretch that analogy way too far: It would be better for that mecahnical engineer to say, " I want to study the strength of materials. One of my constraints is that my equipment budget is limited to the price of a hammer." Then he might decide to study nails.
Consider item 4. digital scent technology. If you do not have access to suitable sensors, you could only do simulations in software, and the quality of the simulations would depend on the accuracy of any published models of the sensors. If you have a gas chromatograph and a mass spectrometer, you could create profiles of scents which could later be used in a portable device. Without knowing where you are in that range os possibilities, it is impractical for someone to make useful suggestions to you.
Lynn

Communicating with agilent 34970A using labview.

Hi,
I'm using labview to control agilent 34970A DAQ. I was using VEE and
now I'm planning to use Labview. I downloaded the necassary drivers. I
want to know how i can get started. i.e. generating sub vi's like
initialize.vi etc.
-Satya

When you do what Dennis has suggested you'll also find that there will be one or more high level examples included with the Instrument Driver that use the lower level functions. The document on how to write LabVIEW Instrument drivers is pretty useful in getting an overview:
http://zone.ni.com/devzone/devzoneweb.nsf/Opendoc?openagent&D318B79F473D3C838625680A005AC409
Regards,
Kamran

LAN Based communication using labview

Similar Messages

Maybe you are looking for