Update of Sub VI outputs

Similar Questions

• Update using sub query behavior

  I have two table with parents relationship child

  script for the same are:-

  create table pt (number);

  create table pt_ch (number b, a);

  Insert into pt values (1);

  insert into pt_ch values (2,1).

  insert into pt_ch values (3,1);

  insert into pt_ch values (4.2);

  When I execute the below the update statement, it is showing three line Update where as a condition based on I expect two rows to get the update.

  in this case for the third row that does not it updates with null, can you please tell me, why this behaves like that

  Update pt_ch set b = (select one of pt

  where pt.a = pt_ch.a);

  Select * from pt_ch;

  If there is no WHERE clause in an UPDATE statement, the update occurs on all lines. No matching rows are updated with the value NULL. This is the reason why you must always include the WHERE clause in an UPDATE STATEMENT. Try this

  Update pt_ch

  b the value = (select one of pt where pt.a = pt_ch.a)

  where exists (select null from pt where pt.a = pt_ch.a);

  or

  merge into pt_ch

  using pt

  on (pt.a = pt_ch.a)

  When matched then

  update set pt_ch.b = pt.a;

• A generated within a loop in a subvi output data can be transferred to the main program for each iteration of the loop?

  Hi LV users,.

  I have a very basic question, I have not succeeded to asnwer using basic considerations.

  I made a sub - vi that performs a scan of current-voltage using a unit of measurement-source Keithley and a loop FOR.

  The subvi outputs 2 tables with my data (essentially an array of voltage and the corresponding current table). I also defined a Terminal at the exit of a group of these 2 tables in order to plot a graph XY - output. Specifically, I indexed this cluster to update after each iteration of the loop FOR, in my sub - vi (the indicator is placed outside the loop, of course).

  My problem is that I want my main program to display the XY-graph in real time, with an update after each iteration of the loop FOR which is in my sub - vi.

  I have a problem because my sub - vi output terminals are available for the main program concluded as soon as the sub - vi has completed its own execution (which is what we expect of sub - vi to do).

  How can I use a sub - vi (because it's handy) and get in the main program in the course of its performance data that are generated from the loops of sub - vi?

  Thanks in advance for your help,

  Yoyo87

  Elements of the queue in the Subvi them put your main VI where you want to display the data and the.

  It is similar to the architecture of producer/consumer. There are examples of it in LabVIEW. The examples work with 2 parallel loops, in your case a loop (the producer) will be in the Subvi.

• Updated entries on day of a Subvi with while loop

  Hi there guys! It's my first serious experience with LabVIEW, so the question may seem trivial to you, but it's not obvious to me how to solve this problem. So I do an installation that integrates a number of flow regulators, a temperature regulator, DAQ, some taps and a mass spectrometer basic tasks. All these must be automated using LabVIEW. I started by doing a VI for each separate task is going very well. Now I need to combine the latter in an experience of master VI, and of course I run into trouble.

  The problem is that I want of course to control this experiences with some selected buttons/dials/what is on the face before of the main VI. However, each of these VI runs a while loop in which fact acquisition of continuous/data communication / whatever. Of course, I want to change settings online. If I just naively tie them at the entrance to the Subvi these will be read only when the Subvi is started, not during each iteration of the while loop.

  I added a very basic example of the problem, so we are all on the same page. The main VI has a button, the State which should update something in the Subvi. However once the Subvi is started it takes control of the execution and the hand-VI seems to be ignored (appears to hang) even if the program has a lot of spare time to read the buttons and put on day of admission. What is the official solution for this kind of problem? My experience in programming that I prefer to keep the intact Subvi, so I can use it as a reusable standard library. Of course a similar question can requested the sub - VI output which will be updated only once the execution is completed (which is never during normal operation).

  PS. I'm using LABView 8.6 on XP

  The best way to set up a BT program must initialize first your settings, and then launch a while loop where you communicate/aquire data or whatever, then after the while loop is finished close and clean up your references.

  Inside the while loop, you can place your code in many of the screws and it is possible to run those in parallel, but I defenetly does not recommend the use of loops in slot face, especially without having to open the front panel or a stop test.

  If your code is completely executed up to your Sub - VI, the main.vi will wait for the sub - Vi ends before continuing the code.

• After the update 42, partial load in memory (Task Manager), but the software antivirus keeps thread bound to perform but only loads 2nd & subsequent.

  Manager tasks shows Firefox loaded as a service, but a of threads waiting to complete. There is no application shown in the Task Manager (which seems reasonable that Firefox has not loaded).
  There is no error message. The 'circle of rotation of microsoft"is going for a few seconds, then disappears as if the schedule.
  It happens after 2nd & subsequent charges after reboot. Firefox seems to work the first time after reboot. It happened only after upgrade to 42. Clean installation makes no difference. Chrome works OK
  Worked well up until the 42 update. Tried to do a clean install with the box to inform Mozilla erased.
  Maybe Firefox started using a port that is blocked by the antivirus? I don't get no logging for the virus scanner showing what it to be blocked. A comprehensive analysis reveals nothing.
  Operating system is Windows 10 (64-bit)

  Abandoned trying to actually find what is actually happening. Changed software virus scanner.
  I think (and this is just a guess) is that to integrate with windows update update 42 change the output method to the telemetry file the antivirus does not. It is perhaps that the antivirus cannot manage that file or property, but it does not record the fact, a failure of the antivirus.
  There is a hint of doubt in my mind when an upgrade causes a system that works to fail in a non traceable method.

• Output of PID VI looks to On / Off signal

  Hi all

  I'm new to requests for PID and currently starting a project involving the PID of a heater of air command. I came across some problems and I'd appreciate really all of the suggestions here

  The installation consists of a cDAQ-9174 with RTD module (for example NOR-9217) and an output module current (NOR-9265). The process variable is the incoming temperature which is extracted from the RTD, and current output module sends the output of PID of 4-20mA to the incubator, 4mA is equivalent to heating off, and everything above that turns heater at different levels as a result.

  I found a sample program on the site OR I have changed according to my installation. PID loop rate is 10 Hz, and for this I used the calendar software (please see the attached VI). The output for the PID VI range is set to 4-20mA.

  During execution of the program, we can see RTD works well (process variable updates correctly), but the output of the PID VI signal varies between these two extremes (4 MA or 20 MA), which apparently turned into a On / Off attached template instead of PID (see the "On-off MV.jpg" screenshot). As a result, the oscillating system in undesirable ways.

  I looked at the example LabVIEW, ran to some of them, programs and they seem to work well. I also looked to their diagrams and outside the middle range output different (default is from-100 to 100), I can't see any significant difference for the other parameters to the PID VI.

  Was there everything I hard set, or was there something I missed? Any help will be greatly appreciated... Thank you!!

  Best regards

  Victor

  If you want to be using PID loops you need to learn about the setting of a PID.  There is a lot of information around on the internet on how to do and there are different methods depending on who you talk to.

  How is it tuned and the small selected output range will make things very quickly.  What you can do is to change the output of pid to 0-100 range.  Then you can use the percentage of PID to EGU vi use the output of the pid to control your 4-20mA signal.  So the 0-100 =.004 A02.  Then, you must always set the PID to your system.

  https://en.Wikipedia.org/wiki/PID_controller

• XP - (unable to install 2 updates)

  I could not install the following updates 2.

  Updated Microsoft NET Framework 3.5 SP1 and Net framework 2.0 SP2 for Windows Server 2003 and Windows XP x 86 (982524 KB)

  Microsoft NET Framework 3.5 SP1 for Windows Server 2003 update

  and Windows XP x 86 (KB982168)

  I have the following updates installed on my computer

  Microsoft Framework 1.1 updates and sub

  Updates Microsoft Net Framework 2.0 SP2 and sub

  Updates Microsoft NET Framework 3.0 SP2 and sub

  Updates Microsoft NET Framework 3.5 SP1 and sub

  A callcenter of Microsoft tech could not fix the problem

  Is it possible that I have to uninstall some or all of the updates and do a reinstall of all updates?

  Please see - Update: what to do if the other .NET Framework installation troubleshooting do not help

  Suggest you start with step 6 and check the installation of the .NET Runtime State.

  A callcenter of Microsoft tech could not fix the problem

  If you can always contact the 'tech' above, then let him read this page, too. :)

  MowGreen Services update - consumer safety

• Crash computer after installing Netgear N600 Wireless Dual band Router WNDR3400. My detail of error says I may need to update my BIOS to 8400 has 09 but I can't seem to download the desktop to install.

  My computer crashes after I installed the Netgear N600 Wireless Dual band Router WNDR3400.   I uninstalled and then reinstalled, but my home computer still crashed.  My detail of error says I may need to update my BIOS to 8400 has 09 but I can't seem to download the desktop to install.  Any suggestion?

  Hi JudyWinn,

  If you need assistance for updating BIOS (Basic Input Output System), I recommend you contact the manufacturer of your computer to update the BIOS (Basic Input Output System) & check if the problem persists.

  Note: Changing the BIOS / chipset can cause serious problems that may prevent your computer from starting properly. Microsoft cannot guarantee that problems resulting from the configuration of the BIOS/chipset can be solved. Changes to settings are at your own risk.

  Hope the helps of information.
  Please post back and we do know.

• BlackBerry Z10 10.3.1.1581 update problem

  I've just updated to 10.3.1.1581 on my Z10 now whenever the phone goes to sleep or is holstered, when he wakes up the display on the screen is stretched. I have to narrow down to the standard view. Everyone knows about this problem? Any suggestions on a fix?

  Hello

  In my view, there is a setting for a magnification that may cause this problem. I saw the solution on a forum.

  If my Z30 not bricked after update (no LCD, HDMI output is fine), I would look into this for you.

  David

• The problem in windows 8 update.

  my windows 8 never been updated due to the output always 8024 A 000 error code prompt, help please?

  Technical details here

  0x8024A000

  WU_E_AU_ NOSERVICE

  To THE put incoming calls to THE service.

  Please run the Windows Update Troubleshooter:
  http://go.Microsoft.com/?linkid=9830262

  Please provide details of any problem it reports as not fixed.

  
  

• Cannot run the update on Lightroom 6 / Win10

  I was fortunately run Lightroom 6 on a Windows 7 PC, but just bought a new PC running 64-bit Windows 10. I installed the original version of Lightroom 6 (version 6.0) and it works well, but I can't upgrade to the latest version. When I select "Help / updates" I get a screen to update telling me that the updates are available for Adobe Application Manager and Lightroom 6. I click 'OK '. Adobe Application Manager then downloads, I get a message saying 'Adobe Application Manager is updated' and then nothing. If I manually select "Adobe Application Manager" in the "Start" menu in Windows that nothing appears on the screen. If I reboot my PC and then run the update again, exactly the same thing: AAM downloads, says it will update and then does nothing. Running Windows Task Manager, I see that two processes, "Adobe Application Manager (32 bit)" and "Adobe Application Manager (updated Installer Sub System) (32 bit)" are running, but nothing happens.

  Help to successfully run the upgrade would be highly appreciated!

  Thank you

  Chris

  OK, finally got it working by downloading and installing a new version of the MAA. After that, the patch LR6.5 was properly executed.

  Thanks for the help, Jim. Much appreciate.

  All the best,

  Chris

• Display the column name of the column more recently updated

  I wonder if it is possible to display the name of the column in the column most recently updated in a table.

  Example:

  Emp table

  Name

  Height

  Weight

  Age

  Update_Date

  Update_Column

  Original record (03/20/14)

  Name size weight Age Update_date Update_Column

  John                                                 03/20/14          Name

  Then someone comes and update the height on 22/03/14:

  Name size weight Age Update_date Update_Column

  John 5'9 03/22/14 height

  And the Update_date and the Update_column would change again if someone came and put a value for the age. And so on.

  Is this possible?

  Also, if the above is possible, would it be possible to display the name of extreme right column if a user updated several columns at the same time?

  Example:

  User updates the sub-folder:

  Name size weight Age Update_date Update_Column

  John 5'9 03/22/14 height

  And adds weight and age at the same time on 24-03-14:

  Name size weight Age Update_date Update_Column

  John 5'9 150 31 03/24 / 14

  The Update_Column would display age because it is the furthest to the right. (Think by reading from left to right, the column that has been updated if the extreme right)

  So to sum things, I need to be able to display Updated_date (which will be the date of the day when the record is the last updated) and Updated_Col (which is the column name of the column was last updated, and if multiple columns are updated then display that value has been updated last in)

  I hope that the examples help to clarify things.

  Thank you

  Steven

  I think I found a solution.

  delimiter //
create table a (
  id int (10) unsigned auto_increment,
  a int(10),
  b int(10),
  update_date datetime NULL,
  update_column varchar(16) NULL,
  primary key (id)
)//

  create trigger bu_a before update on a for each row begin
  set NEW.update_date = NOW();
  set NEW.update_column = NULL;
  -- you need to start with the rightmost column if you want
  -- that matched with the highest priority
  if OLD.b != NEW.b then
   set NEW.update_column = "b";
  elseif OLD.a != NEW.a then
   set NEW.update_column = "a";
  end if;
end //

  TEST

  insert into a (id,a,b) values (1,1,1), (2,1,1), (3,1,1), (4,1,1)[
update a set b = 2 where id = 2;
update a set a = 2 where id = 3;
update a set a = 2 where id = 4;
update a set b = 2 where id = 4;
select * from a;

  DISPLAY

  ID  A   B   UPDATE_DATE                    UPDATE_COLUMN
1   1   1   (null)                          (null)
2   1   2   March, 24 2014 23:22:33+0000      b
3   2   1   March, 24 2014 23:22:33+0000      a
4   2   2   March, 24 2014 23:22:33+0000      b

• Access and update values in replicated Cache

  I'm on the underside of test in a single node with the use of the replicated cache
  
  (1) store a Test object in the cache of key = 1
  (2) get twice the 1 button and assign to two variables such as recovery and two Extraction.
  (3) update the recovery of two
  (4) the recovery of two update has been applied to research a too
  

  DefaultCacheServer.start();
  
  NamedCache cache = CacheFactory.getCache("Test");
  
  // Store the value in to the replicated cache with Num = 1         
  TestObject obj = new TestObject();
  obj.setNum(1);
  cache.put(1, obj);
           
  // Retrieve the same value twice for the Key = 1
  TestObject retrievalOne = (TestObject)cache.get(1);
  TestObject retrievalTwo = (TestObject)cache.get(1);
  
  // Print the value for the Retrieval One        
  System.out.println("Retrieval One (before Retrieval One updated) : "+ retrievalOne.getNum());
           
  // Updating the retrieval Two
  retrievalTwo.setNum(2);
  
  // Print the value for the Retrieval One again        
  System.out.println("Retrieval One (after Retrieval One updated) : "+ retrievalOne.getNum());

  Output

  Retrieval One (after Retrieval One updated) : 1
  Retrieval One (after Retrieval One updated) : 2

  So in the above code I did cache.put to update the cache of coherence, but update the two recovery locally made cache and recoveryemphasis.
  
  Is it possible to prevent changes to the object become visible before the cache.put (updatedObject) on the same node (while using a cache without cloning objects and replicated locally).
  
  my config of cache:

  <replicated-scheme>
       <scheme-name>data</scheme-name>
       <service-name>Cache_for_data</service-name>
       <serializer>
            <class-name>
                 com.tangosol.io.pof.ConfigurablePofContext
            </class-name>
            <init-params>
                 <init-param>
                      <param-type>string</param-type>
                      <param-value>pof-config.xml</param-value>
                 </init-param>
            </init-params>
       </serializer>     
       <lease-granularity>thread</lease-granularity>
       <thread-count>10</thread-count>
       <backing-map-scheme>
            <local-scheme />
       </backing-map-scheme>
       <autostart>true</autostart>
  </replicated-scheme>

  Hi Eric,.

  the replicated cache maintains the Java objects and returns them as they are, until a code changes the cache entry.

  What you see is the result of retrievalOne and retrievalTwo is the same object, if there is no change after the first call to the get() method.

  In addition, it is not only your thread may have a reference to this object but the other wires in the same JVM, too.

  This is why the objects returned by a replicated cache, near cache or local cache are not safe to be changed, you should put new objects in the cache of the key even with cache.put ().

  Best regards

  Robert

• Rename the DAQmx event

  Hey guys,.

  Im trying to get the name of the event in the handler be something useful instead of "task on. I found a post on the forums that said to create a sub vi and run the reference there so you can rename the output of the structure of events Reg at the wheel. This doesn't seem to work, im going to post what I have, maybe I did it wrong.

  Thank you

  Problem is accurately event is stored in the hidden settings in the indicator refnum

  Check if the refnum event has been updated in sub - vi - It shows the name in the context help window

  If this isn't the case, expand, knot of events on the contracts.

  Then recreate indicator

  Reconnect the main.vi

  Button to print by pressing ctrl to force the main.vi to recompile

• Reference VI opened in an executable function

  Hi all

  Is it possible to call a Subvi (which, in itself, called other auxiliary screws not included in the executable source files) from an executable file (LabVIEW 2011).

  I have no problem calling the sub - VI via "Open Reference VI" when runing the main vi It is. As soon as I build the execuable, search for the planned Subvi the exe "seeks to some elements" then hold.

  The Subvi controls some agrees and invites the user to take some action. The Subvi requires an entry handmade VI and once completed outputs a cluster for the main VI continue.

  Hi all

  First main error was "1031 ~ VI reference type is not part of connector VI.»

  Second, the Subvi has a dependency on 'space Constant.vi' which is stored in the vi.lib, the main executable has not had "Space Constant" in his vi.lib.

  SOULTION

  1 added a 'space constanst' executable project.

  2 ensure that the Refnum type was not 'strict' (also ensure refnum corresponds to part VI)

  because I'm on a cluster, if the main cluster changes for any reason, you must update the inputs and outputs of your subVIs. It was reached may make the cluster a def control type. However, because some subVIs are independent of the hand, I make sure that I use the final checks when generating independent subVIs.

  This allowed me to run the Subvi.

  Thank you.