read the output of a path of analog output current voltage

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• Read the output values after each step runs in the User Interface of LabVIEW

  Hi all

  Development environment: TestStand 2010 SP1 and LabVIEW 2010 SP1

  Problem: is there a way to run the following steps programmatically and get values out of each of them?

  I have already extended a bit a complete interface IO for TestStand load any sequence, choose among the measures and execute step by step (something as an alternative to the steps run selected). What I'm trying to do is to add some actions between each step and do in the UI (I can't change the sequence!), so I start the NewExecution with some previously configured InteractiveArgsParam and option breakAtFirstStep set to true. Eventually I do just something like step over when debugging the sequence and it works well, but I didn't do well a way yet to read the output values of the place...

  So, if I wait before the end of the run I can read my results by treating the ResultObject, but it works only after the completion of the test sequence. Because I wanted to stop after each step, read the values, do some actions and continue to the next step, I've tried to register a running Trace event reminder View Manager. I see that after each step is executed, this event is fired, but when I try to read that a ResultObject returned in the event data it is not filled with values (ResultList seems to be empty?). Is this a correct behavior or maybe I'm reading the wrong way? (It's the same VI regarding the reading of the ResultObjects after the sequence ends and there it works very well for tables, containers and other types of data).

  As I mentioned I can't change Test sequences, I can not add a UImessages.

  What are my options? If the trace event returns output all the values from each steps or is it just used to check the status? Or maybe there's a completely different approach to this issue?

  Thanks in advance for your suggestions,

  Best regards.

  When you manipulate the UIMessage trace (you need this before the return of the event or you will present the race conditions), download myuimessage. Thread. Then call Thread.GetSequenceContext (0, & Iplease).

  And then on the context of the sequence, either go to PreviousStep.Result if it exists, or watch Locals.ResultList.

  Trace events occur between the steps executed step the more recently is the previous step, but it is also a trace event to the beginning before any measure have run at this time, there will be a previous step.

  Hope this helps,

  -Doug

• How do I capture the output of voltage full bridge with Signal Express NI9219

  Hello.  I'm trying to do and calibrate a load cell with the installation of full-bridge strain gage.  I use a NI9219 module with a cDAQ chassis.  Is it possible to capture the actual output voltage?  Signal Express gives me a value of strain, but I really need to know the output voltage.  Where to look.  I need only two channels for full-bridge.  I think that could connect the wires to the two remaining channels and read the output voltage of the strain gauges which would be connected as a tension of the 9219 entry, but I think that Signal Express could give me the voltage and output voltage directly.  Any input would be appreciated. Thank you!  P.S. I only use this equipment on occasion and am not the more familiar with it, so keep things simple for me.  Thanks again.

  Hi jgh@AET,

  The NI 9219 measures the ratio of voltage full bridge in hardware sensors, allowing any variation of the voltage to cancel. You won't be able to measure the output voltage of the sensor regardless of the voltage without additional channels, but you can measure the ratio of raw tension using the type of Bridge (V/V) . You can also use the type of measure of Force (bridge) measurement of load cell with engineering units (N, lb, kgf, no strain).

  This screenshot shows where the two Bridge (V/V) and Force (bridge) can be selected in the DAQ Assistant:

  

  These types of measurement were added sometimes around DAQmx 9.1, so if you have an older version of NOR-DAQmx, your DAQ Assistant maybe not them. The latest version is currently 9.4 of NOR-DAQmx. Front of NOR-DAQmx 9.1, the approach to recommend to measure the load cells was to use the custom with Excitation voltage type and a custom scale. However, Tension Custom excitedly can't Bridge of calibration in the DAQ Assistant.

  Brad

• interpretation of TCP read the output string

  What is the right method to interpret the data from the TCP Read function? The output is a string of characters, which are obviously not hexadecimal values. How can I convert the string to a binary table or bytes?

  OK, time wild guess...

  The first four bytes are an indication for SYNCHRONIZATION

  The four bytes 0 4 0 0 is a 32-bit integer, GIS bytes less first. 1024

  Then you have 6 0 0 0, which could be another 32-bit integer, lsb first. 6

  Then your random data

  Rod.

• How to read the output of vm-support

  When I extracted vm-support, I find a lot of files and directories. too much info make me lost. For more information, such as the ESX adv config setting, I can easily browser and get what I want, but if I want some info on vswitch, physical network interface cards, I know that most are etc/vmware/esx.conf, but this file is hard to read against esxcfg-* command. There are a few tools can convert the vm-support info, make it easy to read and understand

  Dinding-

  Once you extract the files, see the directory/tmp for the outputs of most common commands, such as vdf and esxcfg-nics, etc.

  Dave Convery - VMware vExpert 2009

  ************************

  Accomplish the impossible only means that the boss will add it to your regular tasks.

  Doug Larson

• Read the output of command line

  Hello

  I am running a program of external command in my application CVI line. I use this code (that I found somewhere here):

  Char [command] = "test.exe";
  If STARTUPINFO;
  PROCESS_INFORMATION piProcess;
  BOOLEAN result;
  DWORD dwExitCode;
  int exitCode;

  ZeroMemory (& TR, sizeof TR);
  Si.CB = sizeof is;
  result = CreateProcess (NULL, NULL, NULL, FALSE, CREATE_DEFAULT_ERROR_MODE command |) DETACHED_PROCESS, NULL, NULL, & TR, & piProcess);
   
  If (result == TRUE) {}
  CloseHandle (piProcess.hThread);

  If (WaitForSingleObject (piProcess.hProcess, INFINITE)! = WAIT_FAILED)
  GetExitCodeProcess (piProcess.hProcess, & dwExitCode);
      
  CloseHandle (piProcess.hProcess);
   
  exitCode = dwExitCode;
  }

  It works as it should... Now I wonder how it is possible to record or to analyze the output of the command line app...

  See you soon

  I've made a few changes to the CreateProcess call and it seems to "work". Output has been redirected in test.txt, but a black console window appears while test.exe is running. I put si.dwX to-10000 so that it should be off the screen.

  Char [command] = "cmd.exe /c test.exe > test.txt ';
  If STARTUPINFO;
  PROCESS_INFORMATION piProcess;
  BOOLEAN result;
  DWORD dwExitCode;
  int exitCode;

  ZeroMemory (& TR, sizeof TR);
  si.dwFlags = STARTF_USEPOSITION;
  si.dwX = - 10000;
  Si.CB = sizeof is;
  result = CreateProcess(,command,,,TRUE,CREATE_DEFAULT_ERROR_MODE,,,&si,&piProcess);

  If (result == TRUE) {}
  CloseHandle (piProcess.hThread);
  If (WaitForSingleObject (piProcess.hProcess, INFINITE)! = WAIT_FAILED)
  GetExitCodeProcess (piProcess.hProcess, & dwExitCode);

  CloseHandle (piProcess.hProcess);

  exitCode = dwExitCode;
  }

  Michael

  NEITHER

• 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.

• What is the difference between General LV and LV RT considering that I want to read the output of a sensor of temperature online?

  Hello world

  I am very new in LV and I need to read my temperature sensore outputs online so that necessary system changes each time the temperature changes. If I use genral LV or LV RT?

  Thank you

  Hi elahetal.  The LV vs LV RT decision really depends on what are your needs of the moment.

  RT is not necessarily to be as fast as possible, but rather as consistent as possible.

  If you have a measure which must be taken every 100mS + / 2 ms to practically use RT a generalist OS like Windows will be randomly off the coast and do other things (read a cd, the printer, the disc index, etc.), causing your position to be late.

  A RT environment will allow you to determine precisely at the time where the system should do what.  The compromise is that the RT environment is somewhat limited, because you do not have all the bells and whistles, practitioner OS.

  If your action must be taken every 15 years + / 10 s then you can very well get away with standard LV on a PC.

  In some cases, a combination works well.  For example, RT on FieldPoint or CRIO to manage the time of sensitive issues and LV on a PC to manage the analysis of data and user interface.

  Hope that helps, please specify your needs if you wish.

  Matt

• How to read the NI 9201 Module lab mode analog input signal

  Hi all

  IAM using the module Crio-9012 real-time controller

  ND iam using NOR-9201 for entry and exit of NI9263 for

  I have configures cRIO 9012 on my Pc

  But how I'll take analog input using the module NOR-9201

  Thank you

  TC

  Hello

  I recommend you take a look at the following examples in the example Finder LabVIEW.  If you go to help--> find examples, you will see this window.  Just search 9201 and you will see 2 examples:

  

  I hope this helps!

• How to format the output of a .sql script that has select statements.

  Hello

  I have a .sql script which is having several select statements. Each Select statement is to have hundreds of Table columns.

  When we run the .sql script, we are unable to read the output.

  Please let know us the commands that we include for better readable output format.

  You work with the lin standard set 80.
  Increase this setting to set lin 3000 or more.

• I have a DAQ Assistant configured to read several channels at the same time. When I have a graphical indicator of wire to the output, I see all my signals mixed together. How I divided them into separate signals?

  I have a DAQ Assistant configured to read 2 channels at the same time. When I have a graphical indicator of wire to the output, I see 2 signals mixed together. How I divided them into separate signals?

  When I wire any type of indicator, it is show that a release of a single channel.

  I want 2 indicators showing 2 different signals as expected from 2 channels configured. How to do this?

  I tried to use split signal but it end by showing that 1 out of 1 signal two indicators.

  Thanks in advance.

  Yes you are right. I tried, but I don't have the result.

  I just find the path. When we launch the split signal, we should expand it (split signal icon) by top, not the bottom. It took me a while to understand this.

  Thank you

• acquire the voltage output of a channel of analog output current

  I'm controlling a HV configuration rather sensitive analog output voltages. Is there an easy way to read the voltage level which is currently awarded by an analog output?

  Hello

  If you set your subVIs different voltages, you can be sure that the voltage you set in these screws are similar to tensions, you have to your output PIN. For example, you could write the value you give to the output in a variable and read this variable in you main VI.

  Kind regards

  Peter

• DVD Windows media player cannot play this dvd because it is not possible to activate the ANALOG on the output display copy protection try to install a driver available for your video card

  When you try to play a dvd it (above) is displayed. Anyone know where I can be able to get a updated driver free for my video card, or in any other way to solve this problem. your help would be greatly appreciated. Thank you.

  When you try to play a dvd it (above) is displayed. Anyone know where I can be able to get a updated driver free for my video card, or in any other way to solve this problem. your help would be greatly appreciated. Thank you.

  =======================================
  What version of Windows are you using?

  The free VLC Media Player may be worth a try...

  It will play anything.

  (FWIW... it's always a good idea to create a system)
  Restore point before installing software or updates)

  VLC Media Player (32-bit Version)
  http://www.filehippo.com/download_vlc_32/
  (works on XP, Vista, 7, 8)
  (the name of the file to download is: vlc - 2.0.5 - win32.exe)

  (FWIW... it's always a good idea to create a system)
  Restore point before installing software or updates)

  VLC Media Player (64-bit Version)
  http://www.filehippo.com/download_vlc_64/
  (works on XP, Vista, 7, 8)
  (the name of the file to download is: vlc - 2.0.5 - win64.exe)

  And the following links may be worth a visit:

  (2004673) Windows Media Player cannot
  read the DVD because it is not possible to
  turn on analog copy on the output protection
  view
  http://support.Microsoft.com/kb/2004673

  Windows Media Player cannot play the DVD because it is not
  possible to put on the protection against analog copying on the output screen
  http://www.Microsoft.com/windows/windowsmedia/player/Webhelp/default.aspx?&mpver=12.0.7100.0&ID=C00D1167&ContextId=61&OriginalID=C00D1167

• Difficult to use the outputs analog to generate a predetermined file

  Hey all,.

  I tried to produce a file predetermined to a 1 kHz on my USB 6343 Multifunction DAQ analog output channel.

  Here are the questions I have am experiencing:

  1: output file so fast my o'scope cannot even pick it up.

  2: when you try to stop the output it almost freezes.

  3: my graphical waveform data and the plot does not update with the data that have been read.

  If someone wants to tackle one or more of these questions, I would be very appreciatve.

  Thank you

  Kassandra

  kashi13 wrote:

  I tried to adjust the "DAQmx Configure Ouput buffer" but it really doesn't seem to have much effect. Do you think I should try a loop For to pick an amount predetermined points then output them quickly?

  It's weird.  So I don't generally need to use the function of output buffer configuration you have.  If you look at using the Subvi DAQmx Timing just after it, you will see the samples per channel will help determine the size of the buffer.  You might want to try do not use the function of buffer output set at all, not that I don't know if that will fix it or not.

• Windows Media Player cannot play this DVD because it is not possible to activate the analog copy on the output display protection.

  "Windows Media Player cannot play this DVD because it is not possible to activate the analog copy on the output screen protection. Try to install a driver available for your video card. Is the error that keeps popping up. Even after the update driver... now what do I do?

  Hello

  1 did you change on your computer?

  2. not this problem occurs with the particular DVD or with other DVDs?

  3. is the specific issue limited to the DVD?

  4. are you able to play the DVD in the other system?

  Method 1:

  I suggest you follow the link and check.

  Open the Windows Media Player DVD Troubleshoot utility

  http://Windows.Microsoft.com/en-us/Windows7/open-the-Windows-Media-Player-DVD-Troubleshooter

  Method 2:

  I suggest you follow the link and check.

  Windows Media Player cannot play this DVD because it is not possible to activate the analog copy protection

  http://support.Microsoft.com/kb/2004673

  See also:

  Cannot read DVD

  http://www.Microsoft.com/windows/windowsmedia/player/Webhelp/default.aspx?&mpver=12.0.7100.0&ID=C00D1167&ContextId=61&OriginalID=C00D1167