Sending data to LabVIEW via TCP to read in a C Structure

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• you want to send data using labVIEW to arduino using write visa and the process and to take action using arduino. A

  I want to send data using labVIEW to arduino using write visa and the process and to take action using arduino. After that, I want to arduino to send out necessary via a serial port to labVIEW which should be read using visa read and store in a chain. While I am able to write or read both individually, I can't do it consecutively. I used advanced read and write vi for checking my code, but nothing is helping. The wrong bed 'time delay before execution. " Please let me know where I can go wrong. Also is it possible to write code for hx711 using labVIEW

  1. you need not "\n" on your orders println().  This command adds an end of line character already in the message.

  2. you get the error because you have a loop around your reading.  After the first reading (well technically, the second because of you add an extra line end character), there is nothing left in the port.  As a result, you will get the timeout.

  3. you should really consider using a Structure of the event.  This way you just don't write and read when you press the Write button and you can also use the structure of the event to make the loop to stop.  I also go up to close the port inside the stop-> value Change event.

  

• sending data to email via the submission form

  I have created a form to fill out and sent via a "submit" button. How can I associate the filled in a specific email data?
  
  Thank you!

  There are only two ways to process the form data-

  1. use mailto:[email protected] as the action of the form
  ((2 use a script method server side a) collect the form data, b).
  He treats in a certain way, for example, enter into a database, c) develop and
  Send an email to one or more recipients and d) to redirect the visitor
  to a final page

  Method 1 is quite simple and is also the less reliable. It depends on both
  on your visitor with an email client is already installed on their computer-
  This eliminates the public computers or individuals without e-mail clients
  installed (more and more it seems) - and on the installed e-mail client
  in response to
  the appeal of mailto. It is not possible to use this method * and * send the
  visitor to a
  Thank you this page.

  Method 2 is the preferred method, because it eliminates the problems of
  method
  1, but it means that you treat the server somehow (ASP script,
  CF, PHP, perl, etc.).

  2B method would be to use any third party dealing with, as
  http://www.bebosoft.com/products/FormsToGo/, or if your server supports PHP,
  you could investigate http://www.geekministry.com/formbuilder/, a very beautiful
  produced by a poster frequently here.

  You would have to decide which of these methods is best for your needs,
  But if it's the 2A method, then start by asking your host they provide for
  form
  the treatment. If it is 2 b, then carefully read their FAQ/instructions.

  --
  Murray - ICQ 71997575
  Adobe Community Expert
  (If you * MUST * write me, don't don't LAUGH when you do!)
  ==================
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  "SuperG08" wrote in message
  News:ggens2$b6q$1@forums. Macromedia.com...
  > I have created a form to fill out and sent via a "submit" button. How do I
  > link filled in a specific email data?
  >
  > Thank you!

• Sends data from LaunchPad MSP430G2553 Labview

  Hi all

  So, I have a MSP430G2553 LaunchPad and I want to be able to send data to Labview via USB to UARTusing.

  What I do in the MSP430G2553?

  Well, I wrote code that whenever I press a button on the LaunchPad it I send hollow text USB using UART. Using a program on my PC that monitors my serial port, I can confirm that, whenever I press the button, the text comes to the PC. I was also able to send commands to the monitor (it has a 'send the command' field) to the MSP430. If the connection works fine, between LaunchPad and PC.

  What I did in Labview?

  On the piece attached "" Labview_MSP430. "» JPG"you can see my code. Whenever I click on the "VISA resource name" there is no COM. It is said that "Refresh", and even when I click on it nothing happens. As you can see in the file "Device_Manager.JPG" PC can see my device in COM3 MSP430.

  So my question is, what should I do for Labview can see my device COM3/MSP430G3553? And then, my correct code so that it can read the port series?

  What is important is that the com port is visible in MAX (Measurement and Automation Explorer) and for the port is visible, you must install the driver NI-VISA.

  In your code, you must also add the VISA configure the Serial Port. Replace the VISA open with her. Inside the loop, you should not use VISA bytes to the Serial Port. The msp code must be set up to add a newline of endpoints (i.e.) and simply set the number of VISAS read of bytes to an arbitrarily high number. Playback will be automatically terminated when the character is detected.

• QlikView Thinapp start Office installation / repair of routine when sending data to Excel

  Hello

  I have a Thinapp of Qlikview 11/11.2 built with VMware Thinapp 4.7 race. The ThinApp is the installation of MS Office / repair of routine when sending data to Excel via the option "sent to Excel".

  Excel is started, the data sent are displayed, but after a few seconds the installation / repair turns on.

  When the Setup routine asks you to restart the license error message is also coming:

  "Microsoft Office is unable to verify the license for this application. An attempt of repair failed or was canceled by the user. The application will now be stopped. »

  [Compiler options]

  AllowExternalKernelModeServices = 1

  AllowExternalProcessModifications = 1

  VirtualizeExternalOutOfProcessCOM = 0

  Native MS Office installation is permitted via KMS and there is no defective behavior when Excel is started directly or through associated files.

  My goal now is to avoid the opening of installation / repair of routine and the license error.

  Any help is appreciated!

  Get rid of the changes to the package.inj you have already done and add them instead:

  In package.ini:

  VirtualizeExternalOutOfProcessCOM = 0

  ChildProcessEnvironmentExceptions = WINWORD. EXE; EXCEL. EXE; POWERPNT. EXE, OUTLOOK. EXE; MOC. EXE

  ChildProcessEnvironmentDefault = virtual

  This will make sure excel is not running in the virtual environment of your parcel.

• The reading of data acquisition via tcp

  Hello

  I am building an application that controls an acquisition of data via tcp.

  I have a JAVA program that communicate with labview, give a command and data acquisition starts. (So, I read the correct Java data at Labview)

  My problem is if I try to read data acquired by data acquisition (continuous sample 1 k samples), I've read strange values.

  I transform of double values in the string and send it via tcp.

  How can I read it in Java? What type of socket should I use? What is a rate problem?
  I also tried to transform small/big-endian byte order, but it does not work.

  I enclose a sketch of this part of the application.

  Please help me, I try for 2 weeks!
  Thank you all...

  I find the solution in the lavag forum.
  I post here, if it can help someone.

  http://lavag.org/topic/16359-sending-LabVIEW-data-via-TCP/page__pid__99983#entry99983

• How to send data then other more via tcp

  Well guys, I am having some problems with it

  I have a program to labview that record and show for me in a chart, the voltages and currents

  now, I want to do a software... that I can follow the datas of my company...

  so I do a server/client via tcp

  and I've managed to pass data from one... but I need pass 6 data both

  I tried to make a tab control...

  But if I put the data received as a tab control

  the values do not change x)

  I put the server code and client...

  so maybe if you guys see

  you will understand!

  Thank you guys!

  

  

  
  

• How to send data via TCP

  Hi all

  I am trying to write a very simple application that will transfer data via TCP to another computer running a TCP server. (About 3K of data)

  Although I followed the code example in the 4.6 Java Development Guide, page 101, on the use of the socket connections, (http://na.blackberry.com/eng/deliverables/3802/development.pdf) I've been running into questions that data transfer crashes after an undetermined number of bytes.

  Someone at - it sample code to open a TCP connection and sending the data? This seems to be a very common thing to do, so I don't know what is my problem.

  Thank you
  Daniel

  I'm not going to answer your first question, I think that we must resolve this problem before you watch something else (and I suspect they are all related).

  I would almost guarantee that you run your socket send and receive on the thread of events.  The thread of events, that's what treats your interaction Menu, trackball movement etc.  If you perform a long running or blocking on this Thread, your device will freeze.

  Look at the demo of Socket and move your network of transformation to a Thread separate, as does the sample.

  To confirm that the treatment of your socket is executed on the event Thread, you can add this code, run it in the Simulator and watch it in the output window of the debugger and set a breakpoint on the line to System.out.

  If {(Application.getApplication (), isEventThread ())}

  System.out.println ("running in the thread of events and should not be");

  }

• need to read siemens S7 i/o in labview via Modbus/TCP

  Hi friends,

  We are developing an industrial project and facing a scenario in network as follows...

  Abt Project brief

  Its a treatment to the sweage plant. We use the NOR-PAC and Labview version: 8.5.1 for process control. We got a few 3rd e/s Party which must be monitior in Labview.

  Details of 3rd party

  -Siemens S7 - 200 with EM 277

  In our factory in the entire network is fo - TCP/IP. Now, we must take Siemens of e/s via TCP/IP in labview. To what extent this can be done. If it has to do with Modbus/Profibus converter can we do the configuration online without distrubing plant.

  Thank you & best regards

  Pravin Moussa

  Systems engineer

  Hi Pravin

  I am not sure of your diagram exactly what is your network. You have shown a link of the FO-tcp-ip for the S7-200. How does this happen? Or did you ask here, to work on options?

  Since the S7-200 can be slave profibus DP through the 277, it won't 'see' some other profibus IO anyway. You can use a Siemens CP243 module to give tcp - S7 - 200 ip connectivity. Also, is there a connection of profibus S7-300 and S7-200, all e/s of the S7-200 can be mapped to the S7-300, so you only need to worry about communicating with the S7-300.

  Another option

  Regarding modbus, they charge a lot of money for the Step7 from siemens modbus library. On the other hand, the S7-200 comes with a free modbus library, but it's the modbus RS485, not modbus tcp - ip series. Perhaps you could use this and use one of the many series-to-ethernet doors available.

  -Michael

• flatten to a string for sending via TCP/IP contains CRLF characters

  Hello

  I use a function 'flatten in string' to send data via TCP/IP.

  To minimize delays, I use CRLF mode so that the receive function returns as soon as it receives a sequence CRLF (stop character).
  I noticed that every now and then that part of the data is transmitted as the flattened string itself sometimes (but rarely) contains CRLF characters.
  I was wondering if this is a correct behavior, or if I'm missing something. I expected to flatten to string in order to get channels pure ASCII without special characters.

  Now I must first parse the string replace the CRLF characters of some known series of characters and do the opposite to the front desk and hope that that particular sequence never occurs.

  Any comment is appreciated,

  Manu

  mkdieric wrote:

  I expected to flatten to string in order to get channels pure ASCII without special characters.

  I don't know why you would think this. A CR or LF is no more extraordinary than any character. In addition, the string you out is not "ASCII" and has never been--check the documentation. The output is entirely dependent on the entry, and it is perfectly possible to get a (hex 13) CR followed by a LF (10 hex) if the entry would produce flattened data which means that.

  A better method, in my opinion, is to precede that you send with the number of bytes to wait. Then beside reception read you a fixed number of bytes for the numerical value that indicates the number of bytes comes, and read you this amount. The examples provided with LabVIEW show you this method.

• sharing data via TCP/IP

  I finished by writing a LabVIEW program that I run in S.C.  It would be nice to watch some variables from my office here in OH.  Although we have several States apart we are on the same network domain.  I suspect that there is an easy way to do it.  Could someone point me in the right direction for the good vi or information?

  There is an example of 'several customers' that comes with LabVIEW. Just look for TCP/IP in the finder of the example. If you set up your code to handle multiple TCP/IP connections, you can have it send data to multiple clients (your computer being one of them)

• TCP/IP read returns new data with a huge delay

  Hello

  I did a server using LabView application. The application translates simplified data of a device and translated them into more complex protocol with another party. The problem is that responses from my application take too long. I tried to analyze the response time in wireshark, and the NIC accepts data in time, but the function "Read the Protocol TCP/IP" labview returns with delay, sometimes several seconds.

  The application uses asynchronous calls to perform the communication for each parallel of client modules.

  I had a nonreentrant function reading tcp/ip common to all modules of communication cloned, while they were blocking execution for the other (facepalm).

• How to read the Serial Arduino data using labview VISA?

  Hi =). Im a beginner work reading data series from an arduino but im facing... Lets do it step by step

  I built a voltage divider circuit which gives from output
  from 0 to 5V. The output of this circuit is sent to a 0 analog input pin
  of a Committee of Arduino Duemilanove.

  (1) Firstly, I connected the cable to connect to my laptop USB the Arduino.

  (2) I went to start-> control
  Control Panel-> system-> hardware-> Device Manager. Check the Ports (COM
  & LPT). In my laptop I can see USB Serial Port (COM4). Now I know only in
  LabVIEW that I must read the data series COM 4.

  (3) to the side of the arduino, here's the code to read changes in voltage
  entered to analog pin 0. The last line of 'delay' determines the sampling
  Rate of how we want to taste the output of the voltage divider:

  int potPin = 0;    Select the input pin for the output of the voltage divider
  int val = 0;       variable to store the value from the probe

  void setup()
  {
  Serial.begin(9600) (9600);    Opens the serial port, establishes the rate of 9600 bps data
  }

  void loop() {}
  Val = analogRead (potPin); read the value of the voltage divider
  Serial.println (Val);
  Delay (10);
  }

  I slightly modified the basis series reading writing VI... I have
  attached the block schema used with comments. Basically, I tried to read
  data series, divide by 1023 and multiply by 5 to graphic voltage
  variations of the voltage divider circuit.  But Im not getting
  the correct voltage output values. The value of the tension just keeps go
  0 and coming again, as shown in the photo.

  Could you guys please guide me on what went wrong?

  Thank you!

  -you read the data, even if there is no data on the port. If 0 bytes are read => «»

  -in the case of false, you resources VISA wired for the output of channel tunnel?

  -There is no close VISA at the end of the VI resources

  -you're not a loop this VI reading bytes

  I added an addaption of your VI that you should give a try maybe

• sending data and reading

  Well guys, I have a problem sending data here.

  When I did which is left in a loop, it works!

  But when I did what is the Chief while loop, I received a large number of values of fools.

  

  Could someone help me on this?

  The second loop, I had only a few simple calculations for the example. So don't you worry with math or anything so.

  In the logic... the good is that I receive the correct value in table annexed bouth. The only thing that will change is 3 last numbers!

  If anyane can help me on this, I'll be happy!

  EduU wrote:

  Well guys, I have a problem sending data here.

  When I did which is left in a loop, it works!

  But when I did what is the Chief while loop, I received a large number of values of fools.

  This is because you have a status of critical competition due to your use of local variables. In the second loop, the instance of the local variable is read before you actually wrote the new value of the indicator. You can browse this thread.

• Fluke Hydra 2625 with NI LabVIEW drivers: can not read the output data

  I work with a Fluke Hydra data logger 2625 have downloaded the drivers from NI LabVIEW, crossed the config., initialize and modes files and now trying to read data from a thermocouple.

  Initially, I was getting an error message ("17" I think) but now, after correcting the port numbers, the recorder data and LabVIEW seem to communicate without error. I would like to know where I should look (in the panels before different drivers) for temperature data output.

  Any advice would be appreciated at this point. Thank you.

  There is a driver not supported here. I have the instrument and you have not used one in quite a few years, but if using the example, the function can be set to temperature temperature with the 751 RTD or thermocouple. The results indicators min/max/last.

  The pilot could really benefit from a full rewrite, but it seems that most of the basic functions are there.