interpretation of TCP read the output string

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• read the output of a path of analog output current voltage

  In DAQmx if you are unsure of the status of a digital output port, you can take a reading on this subject.  When I try this on an analog output, I get an error.  Is it possible to query the status of the output of an analog output?  I realize that I could follow the State with a variable, but a direct reading would be really handy.

  Hello, GIS.

  There is no way to read the output in the AO modules without wiring physically the signal to a module to HAVE.  You are able to use a variable to read the current value of the output, as you mentioned earlier.

  Channels AO multifunction boards, however, can be read through tasks of entry by rounting in-house channel to read ao vs aoground.

  Lisa

• 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

• VISA read lose characters beyond the end of the output string

  Hello

  I wrote a VI to take a string of output data of an ardunio Uno and analysand. I use the vi read Visa to enter the output channel of the unit. In the end I will connect a device that actually gives the value in this type of format string: (#80212164,2289,2292,2296,2300,2328,2289,2297,2290,2300,2308,2292,2295,2298,2289,22,24,0 *).

  So after a large number of loops, the program starts to drop the last characters of the string that it generates. If the string of Visa Read output reads something like (#80212164,2289,2292,2296,2300,2328,2289,2297,2290,2300,2308,2292,2295,2298,2289,22,24,). The only way to solve this problem, once it has occurred must completely close labview (completely). Once I open again and start the program running, all is well in the world.

  Has anyone had this problem? I tried to debug it in different ways and the only weird symptom I have other Visa Read function lose a few characters of the string is the fact that by looking at the bytes to the Port after I read visa, is that she starts showing five bytes instead of zero.

  my last attempt at resolving this issue is attached.

  Note: The Ardunio outputs a string of this format every 2 seconds with the values being incrimental on a specified range. (80212164,2289,2292,2296,2300,2328,2289,2297,2290,2300,2308,2292,2295,2298,2289,22,24,0 # *)

  You can configure the * your character of termination if your Arduino does not send the carriage return or line feed.  Use the configure a Serial Port to ensure that your settings are correct.  You can also use this VI to increase your timeout so that you no longer need your waiting.

• Display the test using the output "string" indicator?

  Hi, I'm trying out the test to the indicator of string data as you can see below,

  but with 'For' the logic of loop that it is only the display last number, so if you run this, you'll see

  following output.

  Test #6

  If I move the concatenation of string outside of the loop block, you will see the result as below.

  Test #0123456

  However, I want to achieve more of output. Can someone suggest me a way to do it?

  By the way, I use the for loop.

  The output I want to display with the for loop

  Test #0

  1

  2

  3

  4

  5

  6

  Thank you

  

  Close but no cigar.

  You need concatenate the string using a shift register.

  

  This will be the output:

  

• 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 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

• Read analog output channel value internally

  According to this you can read the values of analog output of return without having to physically connect the wires.

  By using the technique described in the example given (DAQmx_Read_Output_Internal_Channels.vi) I'm reading a current area of OCCUPANCY on my compactDAQ cDAQ-9174 with a module of analog output current OR-9265.

  The output channel is created in MAX and my vi can write values to him without problems

  But when I try to create an analog input channel to read the output, an error occurs.

  What I am doing wrong?

  This is not supported by my hardware?

  Or is the example given in the above incorrect link?

  The example is 10 years old. Maybe, it does not work in LV2013.

  

  

  Hi Jocker,

  The link was not attached to your message, but I guess that's it: http://digital.ni.com/public.nsf/allkb/CB86B3B174763C3E86256FFD007A2511 as there the example of vi you mention.

  The error you are getting is due to the use of the channel for analog output and trying to configure the task as a task of entry. You must use _aoX_vs_aognd as the channel of the task rather than on the output channel. This compares to the ground for the analog output values.

  The NI 9265 is not on the list of the C Series modules that have internal channels:

  http://zone.NI.com/reference/en-XX/help/370466W-01/mxdevconsid/9211interchan/#GUID-E13ADE46-5CB8-491...

  So I guess that the module is not able to compare its output to ground. He would appear in the dropdown of the channel names if available.

  Pete

  Applications Engineer OR

• matches the first string

  Hi all

  Someone at - it no VI example for function of "match"?

  Thank you

  Something like this should do the trick (almost).

  Kind regards

  Marco

  PS almost, because the output string will be lowercase.

  

• Concatenate the hex strings

  In the attached example, VI is there a way to have the 1 b be represented as Hex instead of ASCii after the output string concatenation? Why function concatenate strings automatically converts the 1B in ASCII?

  Rather than convert the number to a string of ASCII characters, you should change the representation of the byte in a string. If you always want only a single byte, use the U8 instead of I32 data type. Convert an array of U8. Convert to string. Concatenate. Lynn

• Error reading the port series when the hexadecimal value is 0d (carriage return)

  Hello

  I'm reading a string of 80 bytes from the serial port, but if one of these bytes is 0d (hexa) the rest of the bytes are not read because the read node Visa sees the value 0D as ASCII for the return shipping. How can I read the entire string and see the 0d as a value and not as a symbol of the ASCII?

  Manual

  Of course, she sees it as a carriage return and ends. That's what you have programmed to do. The "character of endpoint allows" set to false with your VISA to set up the Serial Port. What Steve has already said. Claire?

• 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.