synchronization in TestStand

Similar Questions

• Capture engine pointer to external application

  Hello

  I need a program to change a Global sequence running. Simplify, I need to change a Boolean Global with an external application (in c#). If someone has done something similar, I would like to know how.

  So far, ive tried to save the object pointer in the configuration file, through TestStand and an another c# application, but it was not good because it save it as an object com I now try to use Remote Access Services to launch a service (with the current engine) with TestStand so my application can communicate with the engine via remote access.

  I tried my client-server without TestStand and works very well, but I can't grow if I run the application server through TestStand.

  I know more ways to capture the pointer of the engine... Any idea?

  Daniel

  Probably the best thing to do would be to use a queue of TestStand or notification for transmitting data between processes. Using the step type, if you start the name of a queue with a ' *' character then the queue will be global for the entire machine. To access the queue of your external application programmatically, create an instance of the teststand engine and call GetSyncManager() on this topic with the name of your queue (i.e. it must begin with a ' *' character). Then use synchronization to TestStand API with returned Synchronization Manager Manager to get the existing queue and access. Notifications can also pass data and can be used in the same way. You can store the global variable itself by reference to the queue and get the external application using Dequeue in a TestStand object reference variable (pass false for the Microsoft.SqlServer.Management.Sdk.Sfc.ISfcCollection.RemoveElement parameter so that it remains in the queue for the life of the queue). See the teststand help file for Synchronization Manager and the queue of API information. You can create a TestStand object reference variable to store the corresponding element using Engine.NewPropertyObject (). Then once there, simply call GetValueInterface and access the value returned as a PropertyObject himself.

  Hope this helps,

  -Doug

• Using the Manager of synchronization for exe OI LabVIEW and TestStand

  We would like our operator LabVIEW executable Interface send data via a queue of TestStand to a sequence of logging.  The SyncManager API looks like a slick way to do this because it allows access to the synchronization objects other processes outside TestStand TS.  I created an experimental sequence of trying the concept.  The sequence creates a queue with a step of queue TestStand, up a point to another TS not queue, then uses calls to ActiveX in the SyncManager API to add another element to the queue of waiting.  That all works.

  When I added a LabVIEW VI to place another element through similar calls to ActiveX in the SyncManager API, the VI is not a valid reference to the queue and so it cannot place the element.

  I read on the forum that TS queue name must start with * in order to be accessed by separate processes on the same computer.  When I add a * on my queue name, queue TS operations continue to operate, but step that uses a call of ActiveX in the SyncManager API to get a reference to the queue returns one null ref so the next step of enqueue ActiveX returns an error.  In addition, the LabVIEW VI still does not receive a valid reference to the queue either.

  Ideas and suggestions welcome!  The sequence and LabVIEW VI are attached. Using LV and TS 2012, obtained similar results in 2013SP1.

  Thank you!
  Hans

  The queue API expects a PropertyObject not a string for the newElementPropObj parameter (not sure why LabVIEW similarly let you thread a string). To create a new PropertyObject, you can do something similar to the following:

  myProperty = engine. NewPropertyObject (PropValType_String, false, "", 0);

  myProperty.SetValString ("", 0, theActualString);

  Enqueue it.

  Close the ref to myProperty after you're done with it (i.e. after the queue it) in order to avoid leaking.

  -Doug

• Is there an easy way to synchronize multiple computers running teststand?

  I have a test setup where I need to be running on two separate comupters teststand, but the sequences must be synchronized between them to ensure that the correct steps happen in the right order.  I expect to do so through ethernet if possible.

  Thanks in advance for your help.

  Hello

  There is a way to access remotely with TestStand synchronization objects.  See the Appendix section B, synchronization of the Types of step, called "Setting Up TestStand to access remote synchronization objects" of the reference manual TestStand.

  link to the manual to Ref: http://digital.ni.com/manuals.nsf/websearch/2B14FB1CD4FF25CA862577AE00554FC7

  Thank you
  Jim

• How to stop the Thread in TestStand

  I'm a 'newbie' to TestStand parent in this aspect.  I create a sequence to generate CAN Bus traffic in the hope to arrive at a more precise measurement of the flow.  The subsequence that I create is an infinite loop designed and I am specifying that the loop is executed in a separate thread from the setting of the execution Options.

  My question is how I can kill this thread in my sequence cleaning.  Since I plan to run that the sequence several times wouldn't have multiple threads running not checked on my machine.

  I don't see an easy way to do it.  I imagine that something like this has been done before.

  Any suggestions?

  The best way to proceed so that your main thread tell the other thread when it is time to get out and then after the main thread doing this should then wait for the other thread exit (the wait will be done automatically if you had the box "Wait automatically at the end of the sequence" checked in your approach to asynchronous call of sequence).

  One of the easiest ways to do this is to pass a Boolean parameter by reference in your asynchronous sous-suite and have your subsequence as boolean check periodically to see if it needs to close. The main sequence can set this value in its cleanup steps.

  Another way is to use a type of synchronization step as a notification step enter and have your asychronous sequence looking for a notification that your main sequence will be put in its cleaning.

  It is important that your expectation of the main sequence for the other thread to leave before the end so either use the sequence "Wait automatically at the end of the sequence" call option or adds a step to explicit waiting in your cleaning of your main sequence once you have notified the other thread to exit.

  Hope this helps,

  -Doug

• What is the best way to open close, then send instrument labview teststand model handles parallel?

  I have a number of test systems that use a parallel model with labview. We have a number of instruments (PXI).

  What is the preferred method to open, close and passing instrument handles with labview teststand?

  Hello

  A few ways

  1 package return the session as a U32 handle, there are a few VI TestStand i of the palette of TestStand that you can use to make conversation.

  2 through a LabVIEWIOControl. TestStand handles these.

  3 do something fance as the use of LVGOOP and leave the handle as an object property and leave in memory. for example, do not pass it back at all.

  One thing, you'll have to monitor multiple executions trying to talk to the same instrument, use some lock/unlock or synchronization to avoid thi.

  Concerning

  Ray Farmer

• Features VI DAQmx differently in LabVIEW that it does in TestStand

  I particularly have a VI that generates a square wave signal to control the movement of a motor. When I run the VI in LabVIEW, after a certain time, it stops (a timer is also included in VI). When this same VI is executed as an Action (or boundary Test or pass/fail Test) in TestStand, the continuous PWM signal generating indefinitely after the VI terminated and (if necessary) results were returned to TestStand. If I followed this VI with an another VI which generates a square wave and a 0% duty cycle, the motor stops, as expected. However, I cannot rehabilitate the TestStand sequence without resetting the cDAQ chassis - and even in this case, every other time only. LabVIEW reports an error-200474 (expired timeout) and TestStand reports an error-200088 (task invalid or non-existent) on other tracks.

  My questions are: why? and what can I do about it?

  Hey Nessalc,

  After watching your program, I think I understand why you don't see a signal on your oscilloscope.  The test1 VI opens a reference to your task of meter output configures synchronization and then starts the generation time and again and more, without ever giving the working time to generate impulses form.  Generally speaking, you would do this with a DAQmx's task made a Subvi wait until done (according to if it is a continuous or finite pulse train).

  If you attempt to run a train of pulses for a period of time, see the example called Gen dig Pulse Train - Finite.vi, which can be found in the Finder for example of NOR (material input and output"DAQmx" Generating Digital pulses).  Based on the value of the number of pulses and frequency controls, you can set up your device for a pulse train of output for a certain period of time.

  I also noticed that you are not clearing your task at the end of the program.  It is necessary to free up your resources before attempting to create another task for this resource.

  The following image is a screenshot of the example program block diagram (Gen dig Pulse Train - Finite.vi).  I have marked the key subVIs that I found missing in your application.

  

  I hope this helps.  Let me know if you have questions related to this issue.

• TestStand IO using c# to access sequence variables of

  I have a requirement to display during execution on the IO sequence variables.

  At the c# simple IO example and after reading some help files and docs, I tried two approaches. I failed to go to sequence variables.

  (1) I tried to get a SequenceContext of the ExecutionMgr, but failed with the COM exceptions

  (2) then tried to recover the RuntimeVariables, but even once, it failed with the COM exceptions

  Is not a c# or .net expert I think I have to make a simple mistake.

  Someone out there who has done this in c# and is ready to share?

  I am interested in:

  (1) what is the right way to access the sequence inhabitants.

  (2) what event reminders to use to update GUI with the progress of the execution sequence.

  If no luck I'll publish my code and problems.

  With the help of Teststand 4.1 with the free version of Visual Studio 2008.

  The way focused on events to do this is has your message in sequence by using the method of Thread.PostUIMessageEx of UIMsgs. The messages contain a payload of data of your sequence variables. The IO will have an event handler that receives these messages, and then you add the code in the IO to the data wherever it goes on the front panel of the IO. You must create your own messages defined by the user because TestStand lists a UIMessageCodes block. You can view messages in a code module, a stage of the trial, or use an expression TestStand API.

  TestStand I (or II) course is a good example on how to do it. This seems far-fetched at first, but it's a scalable way to do. It provides a rough synchronization, you get the UIMessages from their publication.

  A cool thing, is: when your IO receives a UIMessage, it can be thread.sequence the message context. So you may send a dummy message, have your event handler to get the context of the message sequence, and you will have access to the local population of sequence and all the rest.

  If you want to have the read IO inhabitants of sequence by another way, I think you'd get an array of all executions that the engine has currently a Manager OI (maybe the engine), then understand that it is yours, then understand this thread in this performance is yours and then the thread and sequence etc.. It is not possible to obtain seq right context of ExecutionMgr. I personally wouldn't do it this way.

  CC

• need stop synchronization before finishing to avoid ipod classic remove

  I've updated to itunes version 12.5.1, as well as Windows 10.  If I let my ipod classic finish syncing, everything on the ipod is removed.  So I have to restore the ipod in disk mode so that itunes recognizes the ipod and avoid itunes gel settings.  I found the only way to keep my music is to stop synchronization before it ends or the entire contents of the ipod is removed, and I'll have to go through the process of restoring ipod to factory settings again.  During synchronization, I disable the Windows 10 firewall and anti virus as Apple support told me that it could interfere with itunes.  What is - this with the finishing of sync that removes my ipod?

  It's weird...  Hard drive it is possible to the iPod becomes unreliable and is damaged during the synchronization process.  What happens if you set it up to only synchronize a small number of songs, instead of "all"?  For example, on the settings screen of music from iPod in iTunes, rather than choose to synchronize the entire musical library, choose the option to synchronize playlists, artists, albums, and genres, and select only a SINGLE album.  These songs always get deleted at the end of synchronization?

• Synchronization of photos for the records of several PC iPAD

  Hello

  I have pictures in several files in my PC.

  I would like to synchronize all at once to my iPAD.

  When I opened "Synchronize the Photos" - page in iTunes, it is possible to select only a single folder.

  Is it possible to select several folders?

  Peter

  If the records are directly under the same parent folder then you should be able to select this parent folder at the top of this screen of Photos and records of the child must be indicated below (if you select "Selected folders") for the selection and timing of the iPad for example

  

  If files are located on your computer, then no, you will not be able to select and synchronize them with your iPad - I created a folder separated (with specific subfolders for holidays/events) for the photos that I have synced my iPad

• Backup iphone to mac, but am trying to get you want to synchronize.

  I have backup my iphone to icloud, but I want to be very sure and also create a backup itunes periodically.  So I read about it and it seems pretty easy.  But I have a question:

  When I connect my iphone 6 to my iMac, iTunes open, because it asks me to authorize the computer, I see up on step 3 (I think it's #3) «Sync iPhone...» "and underneath it says"determine what applications to synchronize. "BUT, I don't want to 'sync', I want only to save.  I unplugged the power cord and it stopped in its tracks.

  My question, why is it automatically attempt to synchronize before I have a chance to start the backup?  IS this a normal behavior?

  And I don't want anything from my Mac on my iphone.

  Thank you!

  Probably because you have iTunes automatically sync value. I think that's the default behavior. I do not use Mac, but in Windows, you're going in Edition > Preferences > devices and you put a check mark prevent auto-sync iPhones. There must be a similar setting for Mac. Which should help you to find a way to find out.

  Once you do this, you can connect the device and not to worry about synchronization and then simply click on the Save button after selecting the phone.

• Synchronization and backup from iPad to the computer using iTunes

  Since the last update, last week, did someone else with problems of synchronization/backup of their Air iPad with their computer via iTunes?  iPad OS 10.0.2, iMac OS X Lion 10.7.5 Air (updates is no longer available for this computer). I had no problem before this last update.  -Pop-up message on the computer: "iTunes could not connect to the iPad...". my name... because an invalid response was received from the device. ' Pop up message on the iPad at the same time: "trust to this computer?  Your settings and your data will be available from this computer when connected.  "Option click on TRUST or don't trust.   I clicked on the TRUST several times without success.  Please help me if you can.  Thank you.

  There is no alternatives that save to iCloud instead of it, or upgrade your software and/or hardware to run a newer version of iTunes.  iOS 10 requires iTunes 12.5.1 find which demands in turn 10.9.5 OSX or newer.

• Force synchronization iCloud drive in El Capitan

  My files have all been transferred to iCloud.com and the folder and file structure all the shows in my Finder with the cloud / down arrow, but I cannot open the files at all.

  brctl newspaper w indicates that the network is accessible, but otherwise nothing happens. The iCloud in the Finder drive icon shows that progress going on, either.

  I have disconnected and reconnected to the network with no result. Is there anything else I need to do to force a synchronization with iCloud?

  Try to sign your iCloud and return signature account.

• I can't synchronize my new iphone 7 with itunes on my mac (OSX)

  I have an old MAC, which synced fine with my iphone 5, but my new 7 used to synchronize itunes - when I connect with cord, computer tells me phone will not allow connection - phone to ask if trust peripheral, I say trust, but failed to get the two to cooperate!

  This is why you cannot synchronize now.

  • Sync with iTunes on a Mac or a PC requires:
  • Mac: OS X v10.9 or later
  • PC: Windows 7 or later
  • iTunes 12.5 or later (free download from www.itunes.com/download)

  http://www.Apple.com/iPhone-7/specs/

• How can I synchronize a mini ipad with ios10 for an imac with osx 10.6

  How can I synchronize a mini ipad 2 with ios 10 to an imac with osx 10.6 (snow leopard)? My imac will not recogise the ipad.

  Hello

  You must have the latest version of iTunes (12.5.1.21). If no updates appear in the Mac App Store, it means probably that it's only available for future versions of Mac OS X, or as it is now called macOS.