Can I combine global shared variables libraries?

Similar Questions

• How can I create a shared variable to store the data of 2D image?

  I would like to store as a shared variable 2D image data, but there is no data type to do! How can I do?

  You will need to use the picture to Pixmap VI to get a set of image data that you use with a shared variable. Take a look at the other screw in the photo on the block diagram features palette.

• How to sort the shared Variable libraries

  I have large libraries SV in my project I want to sort by variable name.  I tried to export to Excel, sort and then import them into the library, but the type did not appear.  It looked like loading each variable then the multiple variables Editor opens with the original (unsorted) list I pressed the fact and then is back to were I started.  Any ideas?

  "In LabVIEW, you can sort variables shared libraries by right-clicking on the library" arrange by "name.

  

• URGENT DSC: I can write to the shared variable but can NOT read?

  Hi all

  I use DSC to communicate with an automaton of DVP28SV DELTA. I managed to write to a coil to turn on a fan, and I have also written in a register.

  However, when I tried to read the spool (spool the same I just turned on) or when I tried to read a record that I'm very sure that has values registry where I configure the parameters of modbus, it would return to ZERO, even when I tried to read the registry I just write in the answer was zero (I do not know the entry in the registry was successful because I did the specific value that) I wrote to the registry a condition to turn on a light).

  So, anyone know why this might be happening? the registers are read/write. I thought it might be time to scanning in the controller is too short, so I added delays, but everything I read always gives zero return. ideas? can someone help me with this?

  Here's the manual for registration of corporations, in the case where it is important: http://www.delta.com.tw/product/em/control/plc/download/manual/DVP-PLC-Program_O_EN_20120416.pdf

  In fact I solved this in time ^^ in the case where someone faced the same question and get zeros in the response, which has worked for me exchange of programming (by clicking with the right button on the shared in my VI variable).  Why it works? no idea. but variables starting to give me the correct values.

• Support of the shared Variables in the third part XP embedded based of PTC?

  I sent a request in an embedded XP touch function (third party). The application works very well, but hosted on a RT (sbRIO Board) shared variables are not getting updated in the app on PTC

  1. the PTC is part of the project as a Windows XP Embedded Touch Panel

  2 NI TPC Service has been installed on the PTC and the application can be deployed remotely from the PC development via ethernet. (Where network connections and communications are OK)

  3. using distributed in the development computer systems manager, I can see that the shared variables are getting updates on the network

  I think that the problem can be solved if the following programs are installed on the TPC

  A. Support for variables that are shared for XPembedded

  B. shared Variable engine

  I tried to install the support of variables shared Program Files > National Instruments > Labview 8.6 > PDA > utilities > Variables > x 86 - but I get an installation error "cannot find the application for the Pocket PC applications Manager.

  Shared variable engine was installed from the ve220 folder. The program is installing. But the engine Variable is not start Control Panel > administrative tools > Services, Xpe, the service is stopped and cannot be started. When I try to start the service, I get the following error on PTC

  "Cannot start Service engine of National Instruments Variable on the local computer."

  Error 1053. Service has failed to demand launch or timely control.

  Please suggest solutions to the addresses above or another of the following:

  1. support of variables shared for XP built-in PTC

  2 Installer engine Variable shared.

  Thank you

  Krish

  Problem solved!

  Update for interested people working on XP Embedded PTC

  Just to ensure that shared Variables were indeed accessible to the TPC, I wanted to install Distributed Systems Manager 8.6 on the TPC. However given that the TPC was only 1 GB of DOM (disk on memory) and with all the software that I had tried, there remained only a few megabytes on the system. I had to add an another DOM of 2 GB.

  All products in the Installation went well, with the exception of the Logos NOR (Version 5.0). Logos OR installation has failed repeatedly.  I tried to install NI Logos separately, with the same results. Then I had this intuition that NI Logos had anything to do with the question.

  Then, I downloaded the new version of NI DSM 2009 SP1. Even if it were to settle on any fresh system without Labview, the installation would not proceed beyond the stage of configuration. I tried to install NI Logos of the folder on the download of new products separately and it worked magically!

  Once the new Logos (Ver 5.5) installed, the Shared Variable engine starts automatically and the shared Variables are finally unleashed - free stand up and shine! I thank Almighty God!

  On the lighter side, come to think of it - to run an application about 400 KB, we need NEITHER of Run Time, XP embedded, DSM, Logos...  (around 900 MB). Can make us everything simpler?  Invite your comments...

  Thank you

  Krish

• Deployment of shared Variables failed

  Hello

  I can't deploy a shared variable.

  I get the following error when executing my exe.

  Initializing...
  Calculating dependencies...
  The checking for conflicts. This may take some time...
  Prepare the items for download. This may take some time...
  My computer deployment
  Deployment deployment failed shared Variables.lvlib\\192.168.1.109\Shared Variables (error:-1967362042, operating system and Network Services: (Hex 0x8ABC7006) could not start service.).
  Completed with errors of deployment
  You want to run the application in any case or abandonment of execution?

  I tried to google the error code, but my search has been unsucsessful at the moment. Has anyone encountered this particular error? It would be useful if he said what service especially could not be started!

  Any help would be greatly appreciated!

  Thnaks for the research,

  Iain

  Welcome to the world of partially useful LabVIEW Error Messages (even if they usually Microsoft beat by a mile here).

  What version of LabVIEW you run?  It is the only version that has been installed on your PC?  [The reason for seeking it is me and others, have experienced the installation, say, LabVIEW 2015 on a system that has already LabVIEW 2014, something that is "legal" and should work, but during the Installation, OR HHT are stop and restart not.]  [A single Service, necessary for the operation of shared Variables, is the Variable Service NOR].

  In fact, while composing this Post, I went to my Services (because I wanted to be sure to specify the correct Service), to see that the Service is missing (again) and (again), the shared Variable engine isn't available.  Indeed, I get exactly the same error message.

  So here's how I'm going to (try to) fix.  I will go to the Panel, programs and features, National Instruments and will repair LabVIEW 2015 (32 bit).  I expect this process to take about 30 minutes (if I'm lucky) - I'll post my results here...

  Bob Schor

• LabVIEW 2009 shared Variable Crash

  Hi all

  An example of code LV2009 that crashes whenever I run this VI is attached. There a while loop in which a shared single process variable is read and some operations performed table. It seems to be related to the combination of shared variable and the table to delete. Someone at - he seen this before in LV2009?

  Thank you

  
  

• Can I combine three variables by using the action of the Expression in advanced Actions?

  I have an assessment (contains 9 questions) in my project that contains 3 lessons. Each question relates to a specific lesson. I want to break the score on lessons on my Quiz slide, instead of display the total score for all of the evaluation of the results, so that the learner knows what activities require additional study. I created a variable to contain the points marked on each question and assigning points to this variable using "QuizInfoLastPointsScored".

  

  I know what are the questions focus on what lesson:

  Lesson 1: questions 1-3

  Lesson 2: questions 4 to 6

  Lesson 3: questions 7 to 9

  
  

  However, I don't know how to add 3 variables together to get the total for this lesson. The action of "Expression" only allows me to combine the 2 variables:

  
  

  How can I add a third variable in the action "Expression"?

  I thought you don't need three totals: a global and two partial totals. The latter will be calculated not the subtotals. There is no need to first put the score in a variable separate at all. I used only the variables for totals of the three. You will calculate only the total world, and who could be with a single statement, no need for two to all:

  Expression v_total = v_total + cpQuizInfoLastSlidePointScored

  
  

  
  

• How can I combine 2 iphoto libraries

  How can I combine 2 iphoto libraries

  Click here and use the software.

  (139993)

• datasocket read stop but shared variable can be updated

  Hello

  I program with datasocket open/read, sometimes stops playing and after some time, maybe 10 seconds, it go on reading, I compare with variable shared (DSC) and found

  the shared variable can be updated, I don't know what happens to my program.

  (the reason why I want to use datasocket is that I need to dynamically change the ULR, I have several OPC tags to read (automata 100 times 80 labels per PLC))

  Thanks for your help!

  Hi ~

  The reading function is expecting that the items to be updated, and 10 ms is the default time for this expectation. Affecting false wait the update value will probably solve this problem.

  PS: Variables URLS could be changed programmatically, see this document if you wish.

  Nice day

• Can I send value cluster through the shared variable?

  Hi every1,

  I want to send a cluster through the shared variable. While creating a shared variable, there are options to choose the type of data, but there is no option to Cluster.

  But there is an option of "custom control". How to use it?

  Hi, Germain,.

  Create your control and save it as a file on your disk *.ctl. If you use the "custom control" option, and then select your control. If this does not work for your control, you can use the function 'flatten in string' to send a string.

  Mike

• How can I dynamically select the shared Variable API programming data type?

  I am trying to create a configuration of open connections of variable shared using the programming API. It seems to me that the cleanest way to do would be to put one "open and check" routine in a loop, then call it for each variable in the library.

  The question that I am running is that I have different types of data in my library (to help a server Modbus i/o and data types 'boolean' and 'single' in my library.) How can I dynamically select the data type of the shared variable API?

  See the attached snipit.

  Thank you

  What I ended up doing was doing a Subvi to open, read, write, and close each data type, I use the packaged in 4 polymorphic SubVIs (polymorphic Open, read, etc...)

  Now all I have to do I drop in the polymorphic Subvi and it switches automatically to the appropriate data type

• Shared variable data type: can I choose a picture of a typedef custom, without making the table itself a typedef?

  Hi all

  I would like to pass a table to a cluster on my network. My group is typedef'ed, but I would avoid to pollute my project with an another redundant typedef.

  Is it possible to use the option "From Custom Control... ' of the shared variable with an array without saving the table as a new .ctl file?

  Oh, I didn't know you were using shared variables. I thought that you were just considered another option with TCP/IP or UDP or something like that. In this case, you will need to create a second custom control. This control would be a table with the cluster of typedef in there. Not need to make this new control itself a typedef however. Sorry, I know you were hoping for a different answer. I doubt a single file will really be "clutter" your project well

• published RT cRIO-9030 with network-a project of shared variables cannot communicate with host VI when compiled and deployed as executable startup.

  I have a project including a VI RT running on a cRIO-9030 and a host VI running on a desktop computer.  The two programs communicate via shared variables that are hosted on the cRIO.  As shows, when I run the screw of the project, everything works as expected.  When I compile the RT VI in a start-up executable can deploy for the cRIO, as well as the libraries of shared variables (the record of support in the build specification-oriented), I am unable to connect to the executable running in real time.

  

  I have 'Disable Autodeploy Variables' checked on the cRIO target, if I no longer get the prompt to stop the currently running application to deploy the variables.  The host VI opens and appears to run, but has no connection with shared variables (data does not update).  Compilation of the host VI as an executable file and it works outside the project result in the same behavior.

  I read some relevant posts / knowledge base articles related to this problem, but still can't seem to find a way around it.  I note a number of articles on the series in double bond of variables, but this is in contradiction with my possible behavior for this system: I finally have a number of cRIO controllers identical all runnning the same executable RT and want to be able to have a single host VI which allows the user to select from a list of available controllers (using the screw system configuration) and extract the host name of the controller selected, that would be later used for programmatic addressing of the variables on the host of part VI.

  In any case, I want to start with the simple fact of being able to get that first controller running without an open connection to the RT VI project.  With the deployed executable start, I checked via programmed behavior of LED application of the RT and FPGA are running on the cRIO.  The problem, I think, has to do with shared variables, but I'm not sure where to go from here.  I want to connect to RT executable running from the VI to the host (in project) to verify that the compiled executable of RT works as expected and then the subsequently compile host VI in an executable that can be run from any desktop on the local subnet.

  Thoughts?

  It seems that the error has now been corrected.  There were three things, I changed: the file startup.aliases in the startup on the target directory (Home: / lvuser/natinst/bin) put in 'localhost' as an alias for the controller.  I changed it to the IP address of the controller.  Then, I got some features of IO files in my application RT relative paths using the path obtained by the 'current path VI' VI.  As this path changes according to the location / delivery system, I had to create a VI that has used the Application property: type with a case properly structure band / build railroads desired regardless of the runtime system data files.  This may have broke my RT request.  Finally, I got a property node in one of my RT SubVIs, who attempted to change an indicator in the Subvi, which is not taken care of in an RT compiled executable.  I can't do this for debugging purposes somewhere along the way, but in any case, I removed it, and after a recompilation and the deployment of the executable of RT, everything seems to work as expected today.  The host VI on the desktop can connect to the application of the RT project, and when it is compiled into an executable file, which also works.

• Question about different types of shared variables

  Hello

  I'm trying to use shared variables to pass data between several screws but I do not understand the types. Like, what is the difference between unique process and publish shared network variable?  Also between absolute and relative target.

  I've been thorugh all the post, PDF files, and links. But everything seems vague, at least for me. Anyone can share ideas in a simple way? I mean the absolute basics. What I'm trying to do is move some data to host VI to myRIO VI.

  (I won't use the global variable because I might need to transfer data over the network in the future.)

  Thank you.

  Absolute run on the target in which you created the shared variable.  So if you created on your myRIO, then everyone should point towards the myRIO to access this variable.

  The target always connects to the variable on the target your VI is running.  Target-parent can only connect to the variables on the same target.  So if you put the variable on the myRIO, your host will not be able to access.

  So in conclusion: you want a variable absolute shared on the network.