RefNum becomes zero

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• Variables shared on the CFP becomes zero and communicate with the PSC

  I use a PC with two network cards, one on one wired ethernet, the other on a private IP directly connected to a PSC-2120 (running 6.0.5 full). I use variables shared on the CFP and aliasing to static variable on the PC (initially LV 8.6, now 2009f2 with the same problem in both). PC variables are stored in a database of the Citadel. I have the CFP program built to run at startup, and it works fine when not connected to the PC.

  When connected to the computer all variables shared on the CFP will from time to time (almost 1/min for a few seconds) and randomly becomes zero. Even if they are resized only not to allow to become zero. I can say that what is happening because I use the variables shared as relay alarm thresholds module, and relays to suddenly slam on. I confirmed this by checking that the CFP has written to its internal flash memory card, and indeed variables suddenly are nil. On the PC it says that it cannot connect with the shared variables. This happens although LabView is not running on the PC!  Manager distributed system variables shared on the CFP are listed as (disconnected) during this time, but it continues to be able to read the correct values to live of the CFP entered the module.

  Interestingly, I have the same computer with the same configuration (and a PSC-2120 different) that does not have this problem. Both PC's are new from the factory. I tried to disable the second ethernet adapter, closing all wall-lights/virusscan and re - order network cards in windows networking/advanced settings without success. Simply disconnect the cable between the PCP and the PC does not cause this problem and shared variables become zero does not trigger the network on the CFP monitoring parameters.

  My questions are:

  (1) this problem can be fixed?

  (2) lost communication for a few seconds is OK, but given the PSC variables become zero is not. Can I stop the variables of the PSC to become zero?

  -David

  To update my previous post, it turns out that the re-installation was not the solution (the problem of variables start again occurring began). I finally realized that this only happens when I put the CFP time server IP (under Additional Configuration to the MAX). I was upgrading the server time on 192.168.1.1 IP (the IP address of the adapter of the CFP has been directly connected to). However, this compensation setting solves the problem.

  I do not think that the time on the CFP must need to be addressed too often (and perhaps it is synchronized if I never re - deploy files to the CFP?), so I guess that leave it empty. Curiously, I have the same setup time on an another PSC server IP and PC (running LV 8.6) without problem.

  -David

• Application points value becomes zero after submit - Login Page

  Hi all
  
  I created 3 application elements, and I put the values of them in a calculation in the login page (Page 101) after Submit.
  
  After the FIRST connection its value becomes zero but then if I logout and reconnect, then it sets the value in the application parts.
  
  Not understand...! Can someone help me please?
  
  FYI - I use Apex v3.2 on FF v5.0 & IE v7.0.
  
  Your help would be appreciated.
  
  Best regards
  Blabla

  Hello

  Change the type of calculation to the SQL query and

    select max(person_name)
    from rp_persons_tb
    where UPPER(user_id) = :APP_USER
  

  Kind regards
  Jari

• Spreadsheet string table / why data medium becomes zero

  Hello

  I converted an array of 3 x 2 to 2 x 3 table with table 2D to transpose, then I used "table to a spreadsheet string" vi to convert my table from 2 x 3 to a string. The string format is %f. The table consists of numbers and the text as:

  frequency capacitance resistance
  100                  10                     100

  When I try to write data to the file text the number in the Middle becomes 0. I used probes for debugging. I discovered that the problem is in the output of the 'picture to a worksheet string' vi.  The input data (which are a 2D table) are ok, but out (which is a string), the average data are zero! I can not find the reason.

  Thanks in advance for your help

  The problem lies in the scale of your value.  Primary parameter is 14.5, which rounds to zero because it is rounded to 6 decimal places and pico is too small.  Use %g instead of %f for your format code.

  I do not understand why you generate values at the ends of the empty table.  A lot of this manipulation of cluster and table seems unnecessary.

  I removed the while loop and the agilent Subvi is so I could run this.  But basically your code can be disassembled for this.

  

  PS: because you have attached the code, we could zoom in and see that the problem was with the size of your data, that we couldn't see on the initial partial screenshot of the code.

• Valus RADIUS becomes zero in constructor

  Hello

  I am trying to create a user defined Exception. I use a hardcoded value in the constructor of the circle at the time of the creation of objects. But in the constructor, this value becomes 0.

  import java.lang.Exception;

  Javax.swing import. *;

  class InvalidRadiusException extends Exception {}

  r double private;

  public InvalidRadiusException (double radius) {}

  r = radius;

  }

  public void printError() {}

  JOptionPane.showMessageDialog (null, "RADIUS [" + r + "] is not valid", "Result", JOptionPane.PLAIN_MESSAGE ");

  }

  }

  class Circle {}

  Double x, y, r;

  public Circle(double centreX, double centreY, double radius) throws {InvalidRadiusException}

  If (r < = 0) {}

  JOptionPane.showMessageDialog (null, "Ray @ [" + r + "] is not valid", "Result", JOptionPane.PLAIN_MESSAGE ");

  throw new InvalidRadiusException (radius);

  }

  else {}

  x = centreX; y = centreY; r = radius;

  }

  }

  }

  Class TestRadiusException {}

  Public Shared Sub main (String [] args) {}

  try {}

  Circle c1 = new Circle (10.0, 10.0, 10.0);

  JOptionPane.showMessageDialog (null, "Created circle", "Result", JOptionPane.PLAIN_MESSAGE);

  }

  {} catch (InvalidRadiusException e)

  e.printError ();

  }

  }

  }

  For this reason its always generate InvalidRadiusException even if I am providing a non-negative value of zero.

  Someone please guide me.

  Zulfi.

  I'm getting after two window exits:

  First window: Ray @ [0,0] is invalid

  Second window: RADIUS [10.0] is invalid

  Someone please guide me. I shouldn't get 0.0 as the value of the RADIUS.

  YES - you have TO 'get 0.0 as the value of the RADIUS' since that is what is the value.

  If the value is 0, you will get 0. This is an excerpt of code Builder

  class Circle {}

  Double x, y, r;

  Public circle (double centreX, double centreY, double radius) get {InvalidRadiusException}

  If (r)<=>

  JOptionPane.showMessageDialog (null, "Ray @ [" + r + "] is not valid", "Result", JOptionPane.PLAIN_MESSAGE ");

  See the #2 line? You set the variable 'r '.

  See the #4 line? You test variable 'r' for '<=0'. since="" you="" haven't="" assigned="" 'r'="" a="" value="" yet="" guess="" what="" the="" value="" is="" going="" to="">

  OK - it will be zero. Primitives are NOT objects so that they can NOT be null. If initially it will be zero. If you test 'r' until assign you it a value then, of course, it will be zero.

  You should test the variable 'RADIUS' - the value passed to the constructor.

• Why is the zero volume level by default?

  Under Win7 Home 64 bit, the adjustment of offers for different applications, volume, the volume is zero by default.

  Anyone have any suggestions on how to adjust the volume in specific level? or a game based on the current for overall levels?
  Thanks in advance for your suggestions

  Note presented by the facilitator - the post has been moved to the right category of previous category of MS Office / Excel.

  Hello

  Thanks for posting the query on Microsoft Community.

  I'm sorry to know that the Volume has become zero by default, do not worry you will help with the issue.

  Here is the link to adjust sound levels.

  Adjust the sound level on your computer

  http://Windows.Microsoft.com/en-us/Windows7/adjust-the-sound-level-on-your-computer

  For reference:

  Tips for solving common audio problems

  http://Windows.Microsoft.com/en-us/Windows/tips-fixing-common-sound-problems#tips-fixing-common-sound-problems=Windows-7

  I hope this helps to solve the issue. If the problem persists, get back to us. We will be happy to help you.

• After select stmt. why the count value of variable column, nested table is zero.

  CREATE OR REPLACE TYPE numbers_type
  ARRAY OF INTEGER
  /
  CREATE OR REPLACE PROCEDURE p(i) in FULL IS
  numbers1 numbers_type: = numbers_type (1,2,3,4,5);
  BEGIN
  DBMS_OUTPUT. Put_line ("exposed before SELECTING");
  DBMS_OUTPUT. Put_line('numbers1.) COUNT() = ' | numbers1. COUNT());
  FOR j IN 1.numbers1. COUNT() LOOP
  DBMS_OUTPUT. Put_line ('numbers1 (' | j |)) ') = ' || numbers1 (j));
  END LOOP;
  -Auto selection clause to COLLECT LOOSE:
  SELECT a.COLUMN_VALUE
  LOOSE COLLECTION numbers1
  TABLE (numbers1) one
  WHERE a.COLUMN_VALUE > p.i
  ORDER BY a.COLUMN_VALUE;
  DBMS_OUTPUT. Put_line ("presentation and SELECT '");
  DBMS_OUTPUT. Put_line('numbers1.) COUNT() = ' | numbers1. COUNT());
  END p;
  /
  Call p:
  BEGIN
  p (2);
  END;
  /

  Hello

  Before taking in the collection variable, the values of the variables are fushed. So in this case the numbers1 is empty so it becomes zero and trying to read values from this collection which is already empty.

  That's why you get the number zero

  PRABHU

• HP 15-5000na omen: locks of CPU frequency to 0.80 GHz

  Hello

  My CPU get locks to 0.80 GHz and will not upwards or downwards. At the same time, when the CPU is locked to 0.80 GHz

  computers portable fans running fast (loud) but air to come is not yet hot.

  I found a tool called Extreme Intel (r) utility of tunning to use as monitor "which continues with my system."

  I'm not overclocking or change something in the CPU.

  Tunning utility indicates the value of the "thermal Throttling" 100%, I think that this is the reason why the CPU remains at 0.80 GHz to inhabit because of this thermal regulation.

  Package Themperature and core CPU is normal around 40 ° c.

  All this information is visible in this photo:

  This problem is to come and go at random, when the problem that is happening and I restart the laptop, I get the error from the BIOS says: Enter system (90 b) fan - keep booting

  With the random combination of restarts, stop, unplug the power and plug CPU gets frequency walk again

  Thermal regulation becomes zero and fans to stop... and everything is going normally.

  When the CPU's frequency stepping and normal works if I reboot the system BIOS displays messages: System (90 b) fan.

  This happens once or twice a day and it's very anoing... I'm losing a 15-20 minutes to restart the plug... and so on until the disappearance of the problem.

  I have the latest BIOS for my laptop and installed all updates for Windows 10.

  Software of HP Support assistant shows also no update available.

  Best regards, spetrov

  Hello

  Just to update, I returned my laptop for repair under warranty.

  Warranty card shows the replacement of the motherboard.

  After replacement, not stuck to 0.80 GHz CPU more.

  Best regards, spetrov

• load and save a cluster

  I have a group of data that shows the tests failed.  At the beginning of the primary VI, I want to check if the file exists, otherwise create it, and if so, read it.  This file is going to be my cluster saved, indicating the tests that failed previously.

  I use datalog open/create/replace and will have a problem with the elements of the cluster always becomes zero.

  I also try to save the cluster in the file whenever a test fails.  This does not work either.

  Is datalog sub screw the the easiest thing to use here?  Can I use anything other than a cluster?

  Thank you

  In your backup vi, you must set the input operation to open/create/replace "replace or create.  The first time you write, the datalog is created and the data will be written.

  After setting the operation to create your vi Save, I was able to run it and it created a file datalog.  So I ran the vi with an entry error load so that he says historical data.  The data corresponding to what I wrote.  There is no problem with the functions of datalog.

  But there is a problem with your logic.  Why do you call an error if file exists?  When loading, you hope that the folder exists.  If your error cases are backward.  If the folder does not exist, why do you write zeros for the datalog?  Also, when writing new data to the datalog, you must define the operation to replace or nothing will happen and the new data will not be saved.

• additional improvements

  Further improvements are needed? If yes what they could be?

  

  There is no problem, but the result, you can see that the reaction time 0.2 seconds and response time of hardware timed 200ms. The question is how to improve the system so that the time of reaction and reaction time of timed material becomes zero or close to zero (for exampe 0.0003 s)?

• Wrap the ActiveX control in a lvclass?

  I am trying to wrap an ActiveX control in a class. I use a Refnum of the automation of the private cluster for containing the reference to the class, create the open instance of ActiveX Automation and the private refnum allows access to the class. Very well. But without the destructor semantics how can I make sure that the ActiveX object is released properly? Also, private refnum ActiveX seems to come back to null when I transition vi at vi. I have to do an automatic open after unbundling the refnum every time?

  Nobody prevents you from implementation of constructor and destructor of yourself. Create a static dispatch VI, which creates an instance of your ActiveX object and create a dynamic distribution VI in order to release it (you can inherit from your class if you need to). The semantics of use your wrapper is the same as working with plain ActiveX refnums: you call your Shredder VI explicitly, you would have to do with "close Reference primitive." I wrapped a full hierarchy of objects this way COM and it works fine. BTW, you can take a look at Endevo GOOP Developer Suite: it simplifies the use with classes and provides a class with the constructor and destructor model, as described above. Unfortunately I have no idea why your automation refnum becomes invalid. Do you use it outside your class and accidentally somewhere close? Maybe OT, but if you need an accessor for the private refnum, you can use a trick to protect to close: wire your original refnum for both inputs of a primitive "Data Variant" and return to the refnum resulting: so you increment the counter of your COM object reference You can (and should) close the refnum safely without affecting your private.

• 2 parallel while loops with functional overall to share data

  Hello

  I'm having a problem with the sharing of functional with globals data between two parallel while loops:

  1. One of the loop (bottom) generates a random number periodically and write the total functional sample.
  2. Another loop (above) has a structure of event and when it expires, he would read the functional global and intrigue, a chart data point.

  The problem is sometimes the functional overall seems to be 'locked' and the output becomes zero constant. It also seems that whenever I first open the VI, it works fine. But for the second time running, he begins to have the problem.

  

  You must initialize your VI stop FGV FRONT of your lower loop begins.  Even if you use a global variable that is functional, you have a race condition.  FGV is read in the lower loop until it had a chance to be initialized with a value of false in the upper loop.  Functional global variables do not forget their data between executions of the VI.  So it is always set on stop the last time that you ran the VI.  This works your VI the first time it's because VI does not have in memory, so when it loads, it loads with the default value False in the shift register.

• An asynchronous call - why so long?

  LV 2013, Win7

  I have a window that comes and goes, during the operation of the program.

  This window has 72 sub-panels, each containing a retractable VI even copy for a "block".  I insert the VI in the secondary and then to run the VI with a call CALL and FORGET.

  When the user closed the window, the entire block live end, and the window closes.  I don't care if the closing backstage going again after the window disappears.

  But when the user leaves the program, with this window to the top, I need to make sure that the block screws have completed before I stop other things (close files, etc.).

  To this end, I changed the CALL and FORGET a CALL and operation COLLECT and installed a WAIT on ASYNCHRONOUS CALL to each instance at the end of the code window.  It is after the blocks have been ordered to die (via an event).

  I see the debug file (a part is represented) to about 1000 milliseconds to wait for all instances to die.

  

  The thing is, if I change to "0" to "1000", then what I expected, it is that the actual waiting time would< 100="">

  My thought is that during this timed wait blocks could die anyway, it would take less time to actually wait on them.

  But when I do that, nothing really changes.  Registered time is always above 1000 mSec.

  If I limit the number of blocks to 12, the time is 97 mSec, to 24, is 185, for 36, is 576 and so on - it is proportional to number of blocks.

  So, what is really?  If he waits just things die, why the timed wait does not affect the numbers?

  I initially (when I used CALL and FORGET) kept track of how many were opened and how much were closed and waited for that becomes zero, but it is a cleaner way to do it, at least in theory.

  Am I missing something?

  You can consider another approach to ensure that all instances of high school left, as a queue. Each instance is an element in the queue when it ends, then stops. Your cleanup code removes the elements in a loop For which runs once for each instance, so after each instance is finished he can proceed. This way to care not in the ORDER in which the sub-panels out, you simply confirm that they have completed all. Should be lower overload that call & collect.

• stop DC-source after awhile and then begin the pressure measurements

  I don't think that what I want is so difficult, but I have very little experience with labview.

  I generate a continuous voltage for a period of time. After the time of the source voltage must become zero and pressure measurements must begin.

  In vi, I did the steps start at the right time, but the source never generates a voltage.

  I placed a picture of the diagram as an attachment. There is nothing in the case if the value false.

  The while loop ends after the time to reload, and then the case would become true.

  The part related to PXI1Slot2 for the source and the part related to PXI1Slot3 for measurements. (But as I said, there is no problem with my measurements, the DC-source is my problem)

  I know that I can use the source because I can do generate a voltage if I place the part related to PXISlot2 on its own to a vi.

  Hello

  Both sides in the case structure should arrive in a certain order? As they are it is unclear who will take place in what order.  If they must be in order, use the wire of the error to force the order or try a sequence structure to put them in order in consecutive images.

• Question on HP recovery disks

  The thing is, im about to upgrade my motherboard and buy Windows 7 as my vista OEM license becomes zero, but on this upgrade, the parts that are remains a do a computer itself without a hard drive. Now the question is: if I do recovery HP discs will be that I can then in the future when I decide to finally add a HP computer hard drive install Windows Vista from the recovery discs or what I need to get the real Vista install disks somewhere? The FAQ for support disks, said they could be used in a "major system crash" but does that mean that they can be used to install windows vista on a blank hard disk or does it require the FACTORY_IMAGE partition currently on my hard drive?

  Hello

  HP recovery disks, check if a "tattoo" on the chip of the bios in order to validate the installation, so as long as it is present, Vista should install fine.  There is no problem with the fact that the hard drive may be empty - the recovery disks will actually recreate the recovery image on the disc.

  The only thing to keep in mind is that the recovery disks will load automatically all the original drivers that have been necessary, so forinstance if your new configuration has a different than the original graphics card, this can cause problems when the original driver is loaded - if you can, keep the key elements of the material as it is identical to the original.

  Kind regards

  DP - K