Python DAQmx triggers a reaction of output with an input signal

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  Thanks for the research on this issue.  So first of all, he could start after a few attempts in the end goes to the blue screen error at approx. 5 min. I started this path several times that in "safe mode with network" to try the many suggestions of repair for two days. " At this point, it's freezing just at "windows is loading files", but probably will go to blue screen error. Boot ups always come with "no input signal" for the monitor and signal switching in the Help menu for 5 min periods I've mentioned and then fails or "monitor going to sleep" occurs.

  The error messages rec'vd: corrupted image, corrupted file and header file check sum does not match the sum of computer control. The recommendations of the screen blue: disable the BIOS memory, any material current or drivers and check disk space.

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  At the present time, am unable to start even with advanced at F8 options.  It's HP Pavilion 10/2007, with the help of HP. Its on a wireless network with a netbook, Blu - ray, occasionally a cell phone that works on windows live but none presents as a device.

  Hello

  ·        You did changes to the computer before the show?

  ·        What is the exact error message that you receive?

  Method 1: Remove the external devices except the keyboard and mouse and try to restart the computer in safe mode and check if you can start inside.

  If you are able to boot into safe mode then try a restore of the system it and check if it helps solve the problem:

  http://Windows.Microsoft.com/en-us/Windows-Vista/system-restore-frequently-asked-questions

  Method 2: I suggest you do a system recovery options system restore and see if it helps:

  http://Windows.Microsoft.com/en-us/Windows-Vista/what-are-the-system-recovery-options-in-Windows-Vista

  Method 3: If the system restore does not help then do a startup repair and check if this solves the problem.

  http://Windows.Microsoft.com/en-us/Windows-Vista/startup-repair-frequently-asked-questions

• I lost my connection to the internet, the problem has nothing to do with the input signal. Do everything that contributes to signal the connection disappeared. How can I restore that?

  I remove programs to free up space. now I don't have a connection!

  Hi Steven,

  You get the error message?

  Method 1: Disable the security/firewall program software you run on the computer temporarily and then check if the problem persists.

  How can I turn on or turn off the firewall in Windows XP Service Pack 2 or later versions?

  http://support.Microsoft.com/kb/283673

  If you use a third-party security software, you can check the documentation provided on the software to turn it off.

  Important: Activate Windows Firewall\security software once everything is done.

  Method 2: Follow the steps mentioned in the link below

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  Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems can occur if you modify the registry incorrectly. Therefore, make sure that you proceed with caution. For added protection, back up the registry before you edit it. Then you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click on the number below to view the article in the Microsoft Knowledge Base.
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• Synchronization of analog and digital output with the external sample clock

  Hello

  First of all sorry for my English, I will try to explain what I want to do.

  I want my PCIe-6321 to send two custom signals (modification sawtooths) on a mirror controller. I would also like to generate output with my card at the beginning of each tooth of saw. Everything must be synchronized with an external k-clock signal of 100 kHz. The idea is that whenever the PCI receives a trigger to external clock, it sends two analog output voltages and when he received 1024 clock ticks it will also send a pic of triggering TTL. What I do is first prepare the map and after that in a loop sending and modifing the output values of the two signals and at the same time send a digital signal Boolean in each arch, so when's done it 1024 iterations of the loop I send an event to the digital port. Attached you can see.

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  If I do nothing else bad/wrong, I would be grateful for feedback.

  Thanks in advance,
  Pablo

  I don't know how but I find the solution. I'm generating more than a positive value (as I was triggered maybe very fast the oscilloscope has been absent there). If I put the sample clock of digital output to use the sampling/ao/Dev1 clock that it doesn't, but if I put to use the same source as the OD (terminal where my external clock is connected), but the trigger to start the DO to be Dev1/ao/StartTrigger this works. I don't really know why, but it does.

  Thank you for your patience and your help. I put here the final code.

• Analog output with counter Falling Edge

  Hi all

  Here's the iamge which describes what wishes to accomplish. I would like to trigger that the AO output with the edge of the fall of the meter.

  

  I have set the clock for my AO as the counter.

  The analogue output should be raised whenever the Digital signal meter falls
  
  SAMPLE_SIZE = 80
  
  SAMPLING_RATE = 40   #Samples are written every 25 milliseconds
  
  TIME = float ((SAMPLE_SIZE) / (SAMPLING_RATE))
  CREATE TASKS
  
  CREATE CHANNELS OF AO
  
  CONFIGURE THE TIMING CHANNELS
  
  DAQmxCfgSampClkTiming (taskHandleAO, "PFI12", SAMPLING_RATE, DAQmx_Val_Falling, DAQmx_Val_FiniteSamps, SAMPLE_SIZE)
  CREATE TASKS
  
  CREATE A CHAIN COUNTER
  
  # Time high-low + time equals 25 milliseconds and is proportional to the frequency of sampling
  
  DAQmxCreateCOPulseChanTime(taskHandleD,"DAQ/ctr0","",DAQmx_Val_Seconds,DAQmx_Val_Low,0.00,0.005,0.020)
  # The values of voltage DAQmx writing
  
  DAQmxWriteAnalogF64(taskHandleAO,SAMPLE_SIZE,0,10.0,DAQmx_Val_GroupByChannel,Voltage,None,None)
  # DAQmx AO task start
  
  DAQmxStartTask (taskHandleAO)
  # Counter DAQmx Start task
  
  DAQmxStartTask (taskHandleD)
  #TIME is equal to the total time for the writing samples
  
  DAQmxWaitUntilTaskDone (taskHandleD, 2 * TIMES)

  I get an error every time that I run the task:

  DAQError: Over Acquisition or generation has been stopped until the required number of samples were acquired or generated.
  
   function DAQmxStopTask   

  That's because my AO task is stopped for some reason any.

  Is there an obvious problem with the code. Can it be structured differently?

  best regards,

  Ravi

  I do all my programming in LabVIEW, so I'm pretty limited to help with programming syntax text.  That being said, here's what I * think * I see:

  Your AO task issues a call to DAQmxCfgSampClkTiming, but is not your task of counter.  This probably leaves you with a meter spot which creates only a single impulse, which causes only a single AO D/A conversion.  In LabVIEW when I need a pulse train, I would call a similar function of the synchronization with the clock mode is defined as 'implied '.

  Hope this helps you get started, I don't know enough to give you the specific syntax in the text.

  -Kevin P

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  Hello

  I have a cDAQ-9174 with an e/s digital NOR-9401 module. Now I want to output Digital signals on line0:3

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  Thank you all for your help.

  Concerning

  Bing

  Thank you Christian for your quick replay.

  I have some experience in programming of microcontroller with C. I learned LABVIEW for about 1 month and followed a lot of demons in line and tutorials. I know that nodes DAQmx Data Acquisition screws and fundamental property.

  As I said at the beginning on the $line0, lin1and line2, they serve to control the relay in my circuit. 10ms could be controlled with the OS clock. Pulse of line3 series is used for IGBT gate signals, which is the critical moment. I want to use the clock machine to accurately control line 3 and synchronize at the same time the pulse with analog inputs from an another two NI9206 modules in the same cDAQ chassis.

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  Hello
  
  I have a table as below.
  
  create the table members (member_id varchar2 (128), name varcahr2 (128))
  
  Insert members (member_id, name)
  Select '5591558906BA4A019FAB99EDAA26E62B', 'abc' from dual union all
  Select '0F1E7A1B363111D3BDF20008C707ACC6', 'eur' from dual union all
  Select '49C73ABC91404F8E825314FF6369E432', 'ure' from dual
  
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  If I have
  Select member_id members
  give me
  
  5591558906BA4A019FAB99EDAA26E62B
  0F1E7A1B363111D3BDF20008C707ACC6
  49C73ABC91404F8E825314FF6369E432
  
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  '0F1E7A1B363111D3BDF20008C707ACC6 '.
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  any help on this is much appreciated
  
  Thank you

  >
  I want an output with quotes
  >
  Then put quotes in your query

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  Everything else has compiled just fine, but I get the following error for this:
  
  construction running
  running build_py
  running build_ext
  "_dbxml" extension of construction
  GCC - pthread - fno-strict-aliasing - DNDEBUG - g-O3-wall - Wstrict-prototypes - fpic - i/usr/local/xmldb/include--i/usr/local/xmldb/include-I/usr/local/py2.4.4/include/python2.4 - c dbxml_python_wrap.cpp-o build/temp.linux-i686-2.4/dbxml_python_wrap.o
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  dbxml_python_wrap.cpp: "Sub makeXmlException(const DbXml::XmlException&)" function:
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  dbxml_python_wrap.cpp:3403: error: initialization argument 2 of ' pyobjet * PyObject_GetAttrString(PyObject*, char*)»
  dbxml_python_wrap.cpp:3412: warning: deprecated the conversion of the string constant in "tank."
  dbxml_python_wrap.cpp:3415: warning: deprecated the conversion of the string constant in "tank."
  dbxml_python_wrap.cpp:3417: warning: deprecated the conversion of the string constant in "tank."
  error: command 'gcc' failed with exit status 1
  
  I saw a similar post for an older version, but the solution does not seem to adapt to this particular case. Any suggestions on getting it to compile?
  
  Thank you
  Good looking
  
  Published by: beauSD on September 28, 2009 15:43

  Good looking

  You should just be able to cast ename to (char *) ename in the offending call. I would like to know if it works. Some conditional code could probably be added to manage older Python releases if really necessary.

  Kind regards
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• How do I get the analog input signal and send it to output analog (real time)

  Hello world

  I do a simple task in Visual C++ and I use PCI-6221(37 pin).

  Basically, I want to send the same signal of "analog input" to the "analog output".

  at the same time (or almost), to make real-time application.

  Can someone provide me with sample program please.

  I would be grateful if you could provide me with the great tutorial that explains

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  Best regards

  Khassan

  This is my code in C++, you can optimize it if that seems too messy. This code reads the analog input signals and exports it through the analog outputs.

  To make this code additional work of the directories include and library directories must be added to OR.

  I hope it helps someone.

  #include
  #include
  #include "NIDAQmx.h".
  #include

  #define DAQmxErrChk (functionCall) {if (DAQmxFailed (error = (functionCall))) {goto error ;}}

  int main (int argc, char * argv [])
  {
  Int32 error = 0;
  TaskHandle taskHandleRead = 0, taskHandleWrite = 0;
  Read Int32 = 0;
  float64 context [1000];
  char errBuffRead [2048] = {'\0'};
  char errBuffWrite [2048] = {'\0'};
  bool32 done = 0;
  Int32 wrote;

  DAQmxErrChk (DAQmxCreateTask("",&taskHandleRead));
  DAQmxErrChk (DAQmxCreateAIVoltageChan(taskHandleRead,"Dev1/ai0","",DAQmx_Val_Cfg_Default,-10.0,10.0,DAQmx_Val_Volts,NULL));
  DAQmxErrChk (DAQmxCfgSampClkTiming(taskHandleRead,"",100.0,DAQmx_Val_Rising,DAQmx_Val_ContSamps,0));
  DAQmxErrChk (DAQmxCreateTask("",&taskHandleWrite));
  DAQmxErrChk (DAQmxCreateAOVoltageChan(taskHandleWrite,"Dev1/ao0","",-10.0,10.0,DAQmx_Val_Volts,NULL));
  DAQmxErrChk (DAQmxCfgSampClkTiming(taskHandleWrite,"ai/SampleClock",100.0,DAQmx_Val_Rising,DAQmx_Val_ContSamps,1000));

  DAQmxErrChk (DAQmxStartTask (taskHandleRead));
  DAQmxErrChk (DAQmxStartTask (taskHandleWrite));

  While (! fact &! _kbhit())

  {

  DAQmxErrChk (DAQmxReadAnalogF64(taskHandleRead,1,10,DAQmx_Val_GroupByScanNumber,dataRead,1000,&read,));

  DAQmxErrChk (DAQmxWriteAnalogF64(taskHandleWrite,read,0,10.0,DAQmx_Val_GroupByChannel,dataRead,&written,));

  }
  _getch();

  Error:
  If (DAQmxFailed (error))

  {
  DAQmxGetExtendedErrorInfo (errBuffRead, 2048);
  DAQmxGetExtendedErrorInfo (errBuffWrite, 2048);
  }
  If (taskHandleRead! = 0)

  {

  DAQmxStopTask (taskHandleRead);
  DAQmxClearTask (taskHandleRead);
  }
  If (taskHandleWrite! = 0)

  {

  DAQmxStopTask (taskHandleWrite);
  DAQmxClearTask (taskHandleWrite);
  }
  If {(DAQmxFailed (error))
  printf ("error DAQmx: %s\n",errBuffRead); ")
  printf ("error DAQmx: %s\n",errBuffWrite); ")
  }
  printf ("end of the program, press the Enter key to quit\n");
  GetChar ();
  return 0;
  }

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  Hello

  I am a beginner in Labview and would welcome advice on how to solve the following problem.

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  System: NI PCI-6733 data acquisition card, Labview 8.5

  My daq card has 2 timers 24-bit and 8 e / s digital, but I don't know what the best approach is to create between the pulse output of 4 to 8 of this precision... should it be handled at the hardware or software level?  And how would I go about it

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  Hi noli.

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  Thanks for posting your query on the Microsoft Community.

  Because the problem is specific to a particular video file or all the files?

   

  Follow the methods and check them off below if it helps:

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