Problems of timing 8.0

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• I've recently upgraded to El Capitan - biggest problem is timing removed all the entries in my previous ical. Any ideas how I can track down the file containing these essential documents and install in the new program?

  I've recently upgraded to El Capitan - biggest problem is timing removed all the entries in my previous ical. Any ideas how I can track down the file containing these essential documents and install in the new program?

  All calendars are enabled in the sidebar?

• Create a problem of Timing Source looping deterministic RT

  I update a former 7.1 LV vi LV10 and DAQmx.  We have a deterministic timed loop, driven by a 10 kHz external clock source.  If I understand correctly, it should be possible to implement this feature using a timed loop and the vi DAQmx create calendar source.  The attached image shows how I wired it to the top.

  This vi is deployed to a system card system 6608 synchronization PXI LV 2010 (Dev 1).  I use counter 1 on the 6608 to create synchronization source.  I have an external 10 kHz square wave (5 V p - p) connected to Src1 (PFI35) on 1 Dev.

  The problem: the loop seems to use a 1 kHz clock, even though I specified the meter and the entry for a source of 10 kHz.  If I choose a frequency of 20 Hz (500 edge counts for 10 kHz clock) the actual frequency of loop is only 2 Hz.  But, the loop stops if I disconnect the 10 kHz signal, so that it uses the specified counter somehow! ??  How can this be?  Is there the necessary additional counter configuration?  I checked that the external clock signal is exactly 10 kHz with an oscilloscope.

  Thanks for any thoughts.

  Ok.  I've solved this one.  You need to wire a constant '1' at the time node of the timed loop.  The default value of '10' will run only the loop on every 10th clock pulse, so the factor of 10 decrease in the frequency of the loop.

• problem with timing cRio and FPGA

  Hello

  I develop software for measure the position of a device using some quadrature encoders.

  What I do uses the FPGA interface to acquire the position, then send usign real number of the meter to a host pc to create a data file. In the RT environment, I create a table with the position and the time that is acquired and using shared variables I send the array to the host PC.

  But I have a problem with the sync. The sampling time is unstable, I use a timed loop to control sampling but after some acquisitions, data sampling period begins to increase, as you can see in the image of attachment file. In the attached picture, I used a period of 250us and after some time gets twice and 3 times longer before you clean the table and begin to create a new table, during the period in 250us again. so the problem is that I should get a stable period in 250us instead of these steps in growing period

  You use the table of construction to add new data points? I suggest to use the function "Initialize the array" and "replace the array element. It will reduce the time it takes from the table of the construction.

  I can't open your code as I have LabVIEW 2010.

• A fundamental problem with timing 1 DO

  Hello world

  I use a card PCI and Labview 8.5 6229 with XP.

  I need to generate every 10 seconds a digital output which is weak for 3 seconds low and high, the rest of the time. I have attached the VI that works very well with my previous values (500 ms and ms 2000). However, I get a weak State for 1 sec, 2 sec or 3 seconds but not permanently 3 dry when I used it with the values 3 s / 10 s.

  It works if I use the values 3 seconds / 15 seconds (15 seconds or more).

  There must be a problem with my loop, but I don't understant what is the problem, because the outside loop should be expected inside loop to finish before starting a new loop. I don't understand why my time low State is affected by the loop of the outer time...

  It is probably a pb of basis for you, but any help would be great,

  Kind regards

  Marc

  It seems too complex. Here's an alternative. I used the delay function since there the error / mistake on connections to enforce data streams. I also changed the type of writing DAQmx since you seem to be writing on one line only.

  

• Problems of Timing Simulation Interface Toolkit Custom IO

  I implement a model of .dll Simulink (execution with a stage of integration of 50ms) with SIT in real time and need to communicate via UDP to another device sockets two-way such that all packets are sent from one to the other in-sync and respecting the time constraints of my loop of base fare.

  To repeat: in the designated for playback in the basic loop vi rate that is generated with Connection Manager, I block structure UDP listening on different ports for my other camera packages (non - OR) and to introduce data in the .dll file, and similarly the structure designated for writing I will send packets to this device. Think that the control loop.

  I have not yet started to implement this because I realize that when these two asynchronous devices are listening/sending packages will not be at the same time I don't have a synchronization mechanism. I do not think that they must stay synchronized each interval of 50ms, but problems with drift, I should address later.

  For a first cut, where can I implement a block that will sit and wait indefinitely until my other device not - NOR sends a packet of synchronization of a certain type then 'kick-off' iterations of 50ms of the original model with a known relative chronology.

  Or is there a better way to handle this? I think this would be a common problem for simulations involving control loops. How is it usually implemented in OR in real time with SIT?

  Hi gdubb85,

  You should be able to do this by adding a while loop outside your VI driver with a wait until the next ms Multiple set to 50 m in this loop, you can listen to with a reading of the UDP packets and send the data you receive to help a functional global to your model.

  Kind regards

  Stephen S.

• Problems with timing of analog input PCI-6111

  I'm reading the analog input of a PCI-6111, who receives a square signal of 1 KHz with a cycle of 50%.  I put the sampling frequency to 1 MHz and wait until the data points are 1 usec outside.  When I check the signals received, it appears that the duration of each period of the square wave is 1.22ms instead of the expected 1.0 ms.

  The following is a snippet of what I tried:

  int NUM_SAMP = 10000;
  DAQmxCreateTask("",&mTaskHandle);

  DAQmxCreateAIVoltageChan (mTaskHandle,

  "(/Dev1/AI0","",DAQmx_Val_Cfg_Default,-10.,10.,DAQmx_Val_Volts,null); "

  DAQmxCfgSampClkTiming(mTaskHandle,"",1000000,DAQmx_Val_Rising,DAQmx_Val_ContSamps,NUM_SAMP);

  DAQmxReadAnalogF64(mTaskHandle,NUM_SAMP,10.0,DAQmx_Val_GroupByScanNumber,mDataBuf,NUM_SAMP,&numRead,);

  Can you tell me what I am doing wrong?

  Hello SNL_NB_1167,

  A good place to watch code you know works would be the finder of the example.  "" "" Open the finder example and navigate to hardware input & output "DAQmx" analog measures ' tension ' ContAcq - IntClk.prj

  Run this code and see if you get the same results.  If so, then we would know that it's a hardware problem and not a problem with the programming.  If you see the correct behavior, then you have code that you can shape your out of.  I hope this helps.

• Problems of timing of Smartphones blackBerry with BB Dimesion theme today

  I noticed a few problems in the screen today about my next appointment.

  Even if I have to request for a day or two from here, those who are appearing on my screen today don't only happen a month from now. This is of course useless like this.

  I installed the OS 4.5.0.138. He is the latest official version of Verizon.

  The other thing I noticed is that calendar wants to associate with an e-mail. Since I have two email accounts on my phone, I don't know how to use this option. There is also the 'default' calendar which, in the new creation of the appt, I can't access, but some data of the upgrade.

  The latter has something to do with the first? How can I fix the lists of the today screen?

  Thanks in advance!

  Hello

  I forgot to post the KB that wan't good!

  It is attached.

  mtkalimey wrote:

  The first is [email protected] shows 3 entries

  Second is peripheral by default displays 18 entries

  Third is [email protected] it shows 4 inputs

  Appointments in the device default calendar will be synchronizing any. They must be associated with a

  It is associated with the correct email account listed by default of the unit.

  All three have reminders see activate

  Here's where things start to get a little interesting.

  I only sync my device to my laptop for business who get associated to Exchange when at the office.

  There is only my email on that outlook.

  Another email address is on my home computer using outlook on this, but I will not sync my device to this computer on purpose to avoid the confusion of 2 computer problems.

  Not the CICAL and CMIME are incorrect for the synchronized computers.

  I would like to change the values for the default CICAL and CMIME address being synchronized in this case services

  the company calendar. It would be preferable to use only a diary to record your appointments.

  Can you do this?

  Please let me know.

  Thank you

  Bifocals

  Also, I use BIS for my email on my device. As economy Exchange Blackberry software pro should be since we have only 6 users in our small business.

  I saw not the article you were talking in your first answer. Can you tell me where to find it?

  Thank you

  Mtkalimey

• problems with timing in a time loop in a structure of the event

  Hello

  I'm using labview to control three motors stepper, running the three stages of different translation in different axes (X, Y and Z). Please see the attached VI, focusing on the structure of the event on the RIGHT side.

  In the Z axis, I am trying to run the engine for 5 seconds, after clicking on a button. I have attampted to do by adding a sub of elapsed time VI within a while loop, located in the tab 'Mouse before Z down' the structure of the event. A similar "elapsed time while loop" is also included in tab 'Z reverse the mouse down' the structure of the event.

  Separately these "elapsed time loops" work very well, BUT when I run a Z direction after another, say 'Z Reverse' and then 'Before Z' then they annoyingly interact. The calendar is gone, with the moment where we add, rather than rebooting.

  No idea how I can reset the time elapsed while loops? Or is there another method better do?

  Thank you very much

  Charlie

  charlieryan wrote:

  I take a wire from the 'i' of the while loop at the entrance of the Sub autoreset - VI of tiem will blink?

  No, connect you to the "reset", not "autoreset".

  

• data transmission between the General case and problems of timing instructions using daq devices

  I'm currently developing a program using LabView 2012 SP1.  I am interfacing with an NI USB-6009 data acquisition using NOR-DAQmx 9.5.5f4.  I'm trying to get a voltage on the three analog inputs (AI0 and AI3 AI4) 1 second to start and 20 seconds of starting.  Three digital ports: P0.0, P0.1 and P0.2 are used to market the transistors for the signals in question and must remain high to the course of ~ 20 seconds the readings will take place.  After 20 seconds, I need to take the readings of each analog channel and the difference of the two to determine the delta at the start.  This delta will lead logic to implement later.  The attached VI has a while loop that runs on an interval of 1 second and a case statement that takes a reading DAQ at 1 second and 20 seconds (two separate trials).  The while loop stops after 21 seconds.  The question I have is how to manage the tensions of reading of the second 1 case and the second case 20.  I need to take the difference and the exit to the front after 20 seconds elapsed.  Please keep in mind when you answer that I am relatively new to LabView.  I have experience with several other languages (Matlab script, C, Java, Perl, etc.), but am still learning how to get concrete results in LabView.  That being said, guess I know nothing outside of what you see in this VI.  If you have any recommendations on how to implement more efficiently, I am open to suggestions. Thanks in advance for your help.

  RJ

  I would make the acquisition of 21 seconds of a value of data from data acquisition.  Then, you can index you want specific samples.  Have time to wire samples is much more reliable that Windows hope will be both properly 21 seconds.  It also simplifies the code in a bit.

• Workstation 8.0.6 and Win10x64: audio crackles - timing problem?

  I use WS 8.0.6 under Win7x64 on Clevo laptop P170EM (3610QM CPU, 16 GB of RAM).

  XP, Vista (32/64), Win7 (32/64), Win8x64, Win8.1x64 invited works extremely well, no problem at all.

  In all the Win10x64 invited (from 10586 last pre-release), the audio is very choppy, with or without VMware Tools installed.

  Tested with the internal ' Test' button and popular players (WinAMP, Foobar2000) using MS, SD and WASAPI interface. Even with 2000 ms buffering, there is no clear sound. In all previous versions of Windows (up to 8.1), 200-300 ms of buffering is enough.

  DPCLat shows 1200.15000 we 1100.1200 average latency.

  I'm afraid that there are some problems of timing of comments.

  What timing technique had been changed to relatively Win10 to Win8.1?

  WS 8.0.6 can be adjusted to fix, or should I update my WS to a version more recent?

  Would be - for upgrade, choose which version of WS? Here, I've seen a few complaints for WS 10 and 12 WS audio stability-related.

  I discovered that Virtual 8 HPET Hardware is enabled by default:

  hpet0. Present = 'TRUE '.

  Disabling HPET eliminates audio crackles and timing problems in win 8.x and 10:

  hpet0. Present = false

  (or you can just comment this line on ' # ').

  Most likely, Workstation 8 virtualizes not correctly HPET.

• Problems syncing with GPIB Read on a SR400

  I'm using LabView to control a meter of photons SR400 of Stanford research systems. Can control the box easily, I'm having problems with reading the correct data in the box of. I get incorrect values of 0 ', 6 and 134' rather than real account numbers. I see the correct values on the display screen, but GPIB reads bad.

  It's what I've tried and what I've learned:

  • At first, I was getting random 6 error LabVIEW (from reading GPIB) which would prevent my program to run. To resolve this problem, I put a case Error statement after she and simply write the word ERR in my data file and move on to my next point data. This stopped my cessation program, but started badly reading the values using reading GPIB.
  
  
  • The SR400 takes data for N periods on two channels, A & B. The first column of the channel A every 6 seconds and the rest of the columns on both channels would be regular values. However, the problem got worse and my first column of the channel began to write 0s, the second column of the channel A would be 6 s with some 134 s and the rest of the columns would be nice. But, if I had only 1 time for each column, I now have data lost on two channels A and B. A channel would be of 0 s and channel B 6s and 134 s.
  
  
  • This problem is sporadic. I can't control when it arrives. Today he works. Yesterday's didn't.
  
  
  • It seems to be a timing issue, but I don't know what I can do about it.

  My questions for you are:

  1. Is it better to use GPIB or VISA to communicate? I use GPIB cabling, so be it.
  
  
  2. How can you correct problems of timing in GPIB?
  
  
  3. Any suggestions on how to improve this?

  I joined code of 8.2 and 2011. I'm trying to convert our code in 2011 to see if it solves the problems. The VI with GPIB Read is CollectData/TakeData and it is called by a VI, where he gets called frequently, but the reading and writing of all MTP recharge time is done by data files CollectData/Take.

  Thank you all in advance for your help. I'm a grad student and still learn from these electronic and LabVIEW.

  Start by lowering of the busspeed. I think that 1 uS is more fast enough for the handshake and then I would disable autopolling.
  You can do it in Max settings for your gpib card.
  Low level visa uses gpib, but never use it directly. In any case the speed is completely determined by the slowest device on the bus, complaining the sr400

• derived clock problem?

  I am tring to derive a clock to 25 MHz using an NI PXI-7842R and labview project will not allow exact clock

  But when I try to do the same thing for a PXI-7830R target, I'm successful.

  What is going on?

  I choose a base of 40 MHz clock

  for 25 MHz, the multiplier is 5 and the divisor is 8

  When I right click on the clock of new derivatives, I get only the possibility to enter a new frequency of the clock.

  Why doesn't the tool let me simply specify the multiplier and divisor?

  I'm using Labview version 2010

  That should work just fine.  The structure of the case will add some overhead to the total runtime of the circuit, but at 50 MHz, these costs should be minimal and you should not encounter many problems of timing.

• Properties of the NOR-XNET CAN frame timing type

  Hi all

  I have a problem of timing of the CAN. I start to read / write CAN bus every 10ms. I am using loops timed for this and I usually see 9ms / 10ms loop intervals of itteration, that's fine. However, sometimes my comms CAN down completely and that the loop can take 5 seconds to turns off once. The work rate of the cpu (from the Task Manager) does not seem too badly loaded)<>

  I noticed in the editor of database of NOR-XNET, I have the choice of the type of calendar. I am currently using the event data, but I was wondering if there was something I could do to use some kind of hardware timing for my transmissions CAN? Curiously, neither aid seems fairly limited for the calendar type (where my post here). Any help on what means the type of calendar options, and if a is likely to strengthen my time 10ms loop and (hopefully) stop my bus CAN lock up risks would be apprciated.

  Thank you very much.

  georgeofthejungle wrote:

  I use 'Framework in single point' for my readings and 'Unique exit point' for my writing.

  I chose the type of cyclic calendar with a time limit for the transmission of 10ms in my NOR-XNET database. It seems to be better now, - I haven't seen 1 instance of my may lock up repeatedly. I still have my loop timed to 10ms containing my NOR-XNET write VI.

  I'm not using a queued session, - if I understand correctly, the queue will hold managers and they will be released sequentially at intervals of 10 ms? The only point & cyclic timing so I understand that if a new image is written so the same frame will be published every 10ms. - it fits my needs for now.

  After reading the help, point one looks like it will work enough for you.  Keep in mind that if you finish writing twice before the next transmission 10 ms, you can miss an update signal.  This can happen if your software update of 10ms is not quite of the transmission of material 10 ms.

  With the type of cyclic calendar and Frame in single point, are my transmissions CAN timed material now? -They seem more regularly now and I have not had a case of the loop CAN lock up.

  The cyclical schedule will force the transmissions timed HW of the controller CAN then Yes, you're now HW timed for transmission.

  Thanks again for your help.

  I'm glad that your CAN bus seems to be much happier now.  Feel free to post if you have something else.

• Problems with the blue screen of death (when my computer is shut down)

  I get a blue screen of death on occasion, when shutting down my computer (Windows XP, Dell Vostro). It started happening after I installed the latest version of the Synology NAS software. This is the message: BCCode: 100000d 1 BCP1: BA3F1F20 BCP2: 00000002 BCP3: 00000008 BCP4: BA3F1F20 OSVer: 5_1_2600 SP: 3_0 product: 256_1. Additional technical information: C:\DOCUME~1\admin\LOCALS~1\Temp\WER4098.dir00\Mini021112-01.dmp and C:\DOCUME~1\admin\LOCALS~1\Temp\WER4098.dir00\sysdata.xml.

  Not sure if it is related to the installation or if it is another problem. Any advice would be appreciated.

  The minidump file showed a DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1) referencing the usbccgp.sys (common class generic Parent Driver USB):

  BUCKET_ID: 0xD1_CODE_AV_BAD_IP_usbccgp+ 1f20

  The spoolsv.exe (print spooler service) is the process that crashed.

  You have recently installed a USB printer?

  In any case there may be a problem with the USB stack in Windows XP Service Pack 3 so I recommend you to install the following fix can correct a problem of 'timing' of USB that can be useful for the error you receive:

  http://support.Microsoft.com/kb/969238

  There is a link at the top of the article to request the hotfix.

  There was a driver of Synology (busenum.sys) loaded during the crash, but it does not appear to be involved in the accident.