Loop with Timeout

Similar Questions

• several loops with error handling and controll

  I have a project where I spin 4 loops at the same time and must stop all the loops with a stop button as well as all the loops if one of the loops will receive an error.

  Loop 1.

  Loop start

  control the other 3 loops

  Loop 2.

  Analog voltage reading

  Loop 3.

  Digital inputs to read

  Loop 4.

  Write digital output

  Someone knows how to do this?

  Two other methods not mentioned in the otherwise excellent document that mentioned Matt are the use of a global variable 'stop all' and a relative using a Global Variable of VIG/functional.  The reason to talk about, is that they can be used also stop 'detached' live, live which are defined to run asynchronously (and therefore a bit 'out of control') regarding the main VI.

  I use a "combination of ingredients" for some projects I'm developing using LabVIEW 2016 and its support of the channels.  For example, I use a Messenger channel to create something akin to a message in queue manager.  When the event loop detects that the exit button has been pushed back, it puts a Message "Exit" on the channel of Messenger and stops himself.  When the Message Loop sees "Exit", it sends one release Message who else has need to see (in one case, the producer of a producer/consumer model) and stops himself.  When the producer Gets the output Message, it puts a "last element is invalid" on the flow of the channel for consumers and stops himself.  When the consumer gets the message of the last element, he stops himself.  A magnificent waterfall.

  And I work (not yet 100% complete) how to extend this to start the asynchronous calls that do not (yet) support channels as easily...

  Bob Schor

• Treatment in time loop with microseconds.

  Hello

  I am make only one application in Labview where I capture the image of a camera and image processing. The camera is communicate with the Board of Directors NI PCIe-1433 in the PC with the camera link. This device can operate with a rate of 2000 frames per second. For the treatment of each image in the pc I need a time loop that work with microseconds. The problem is that this time loop only works with MS Windows. If I use the real time module, can I configure this time looping with microsecond or is there another solution?

  Thank you

  Hi xisco,.

  with LabVIEW Realtime, you could create a loop with the order of a microsecond wait States.

  BUT:

  Why do you think you have need of these wait States? What is the purpose of these expectations?

• Stop the loops with a button

  I have an infinite loop is and display of data. How can I end the loop with a button or a keypress?

  Periodically perform a ProcessSystemEvents() call inside the loop. In a reminder of the STOP button, set a flag to indicate your loop to stop.

  stop unsigned int = 0;

  While (! stop) {}

  data getmeasured

  display the data

  ProcessSytemEvents()

  Sleep (250);   to be polite: it is impolite to spinlock, since you will monopolize the CPU and other threads can get hungry

  }

  then, in the reminder for a STOP button

  STOP the button callback routine

  stop = 1;

• Bug in the conditional for loop with an array empty

  There seems to be a bug in the loop with a conditional terminal.

  If an empty array is connected to an indexed table auto entry tunnel, a tunnel of output array has an element instead of zero.

  

  The constant matrix is left empty.

  High loop without the conditional Terminal produces an empty array.

  Conditional down with a terminal loop never true generates an array containing a single element

  Thanks to LabVIEW version 8.5

  
  

• How to exit while loop with delay schedule?

  I have a pretty heavy program that iteratively takes a series of measures from a number of channels using a variety OR-Switch and OR-DMM screws that I assembled as a result of various examples and several help pages. Each channel is sampled once during each iteration with data to be saved in a text file for later analysis, after it is imported into Excel. I added to the screen 'real time' indicators and charts to see what looks like running data.

  Each iteration is performed using a While loop with a delay timer, even if a previous version, I used a timed loop. Measures for the series of channels are collected with a loop For inside the While loop. The loop For includes screws which:

  1 cut the channel and wait as debounce.

  2 Initializes the DMM and passes the configuration information.

  3. wait for a while to make sure that the DMM is set.

  4. measure.

  5. close the DMM.

  6 disconnect all the switches.

  The terms of the election of the channels is ends in 15-20 seconds and I am currently collecting data every two minutes, so he spends "wait" time "collection". Each iteration of the loop For initializes and closes the DMM to avoid the hot switch.

  Other components of the program are configuration setting controls, etc. (in front of the While loop), a "current measurement" indicator and a writing-text inside the loop file operation For, several indicators of the iteration (inside the While loop, but outside the loop For) and a bunch of operations related to the grouping and table that provide graphics of groups of time vs measures.

  I don't know there are more elegant ways to perform many functions that I do and I'm not posting the VI here because I want to concentrate on what I know, it's a big problem with my program (for now!) - I can't figure out how to get out of the While loop. I tried the combinations of Boolean control, its conditions of latch and Stop / continuous if true to nothing does not.

  I want a 'Stop' button that ends the While loop, at the next opportunity, but it is not working properly, I think, because the stop button does not play with good timing, because the program runs either the loop For or the time delay at the beginning of the While loop. 'Next opportunity' can mean 'Immediately', 'at the end of the next iteration of the loop,"or"at the end of the next delay schedule." I think that if I get one of these scenarios to work, I can get an any of them to work!

  Help, please!

  
  

• Means PtbyPt in a loop with parallelism

  Hello

  Can someone explain to me why this does not work as expected? (values 10.5 and 0.5)

  I got 5.5 and 5.5.

  I checked the MeanPtbyPt.vi, everything is cloned, the vi himself is set to pre-allocate clones. I also tried to "Inline", does not help. I tried C of 1 and 2, no luck. If I open ptbypt average during operation, I see that the SR holding the data table is interlaced with 10.5 values and 0.5, as if the two clones use the same space memoty, but on the entrance, I still see only ~0.5 coming. What gives? I thought parallelism will create two clones, no?

  Fomine wrote:

  Hello guys,.

  Thank you very much for your answers!

  The problem with the 2 ptbypts on the block diagram, it is that I have a table of measurements independent of N, where N is large and variable.

  Why a loop with parallelism does not clones? This significantly decreases its value then. I have to rewrite mathematical libraries AND then

  In fact, a loop with the parallelism (or without) CAN create clones.  But he must know the trick.

  Here is an example of what you "really want".

  

• When you try to install the update to upgrade windows 7 pro for windows ' 0 pro update windows seems even after 5-10 min in a loop with no sign of progress.

  * Original Title: windows update

  When you try to install the update to upgrade windows 7 pro for windows ' 0 pro update windows seems even after 5-10 min in a loop with no sign of progress.

  If anyone has any ideas on how it can be fixed please tell me

  Adam

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

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

• create link db with timeout parameter

  Hi all

  I there a way to create the db link with timeout parameter, then only in the case where the session established for db link for more than an hour to disconnect if idle

  Thank you

  He can do with the idle session profile option, instead of RM (I think)

• Need an example of loop with sql statement in shell script values

  Hello

  I have to present a simultaneous program to each line of the table through script shell (only).

  The table has all the parameters required to pass to the concurrent program.

  I have trouble in a loop with the lines of sql statement results.

  Could someone give me an example of a shell script with a loop with the sql statement values.

  appreciate your time and your help.

  Thank you

  Ganesh

  Hello

  Here is a guide using 3 parameters:

  {

  sqlplus-s $OA_USR / $OA_PWD<>

  SET THE OFF POSITION;

  SET FEEDBACK OFF;

  SET LINESIZE 300;

  SELECT param1, param2, param3

  Of your_param_table;

  ENDOFSQL

  } | while reading line

  do

  If ['$line'] # line non-NULL

  then

  set $line

  param1 = "$1."

  param2 = "$2."

  param3 = "$3."

  # Pass parameters to a script, sql more

  sqlplus-s $apps_usr / $apps_pwd @SUBMIT_CONC_PROG.sql $param1 $param2 $param3

  FI

  fact

  }

  In your SQL * more script you run 3 parameters into variables:

  declare

  VARCHAR2 (10) param1: = ' & &1';

  VARCHAR2 (10) param2: = ' & &2';

  param3 varchar2 (10): = ' & &3';

  .....

• Pavilion dv6636 stuck in a reboot loop with no boot

  Hello

  I have a Pavilion dv6636 purchased on Oct / 2007 which saw a reboot loop with no boot. By pressing the Start button, I can see the hood leds on, power on (as well as the port for illuminated around blue AC adapter), HD led being turned on once and can hear the pilot DVD is powered and the fan turns, then, after about 10 seconds (while the screen is always black), he stops, remains off for 5 sec , then restarts, stuck in this loop. Experiences I've already done:
  -hard reset
  -reset of memory
  -stable memory locations
  -exchanged memories
  -started with memories (sounded a beep as expected)
  -had started with HD (continued with the same symptoms)
  -F8 or F2 keys pressed during startup (black screen and continued with the same symptoms)
  -F10 key during startup (by pressing F10, it does not shut down as usually does, but rest died, with black screen and rotation of the fan)
  -external monitor plugged in when you start (black screen and continued with the same symptoms)

  Same question occurred in about 4 months ago, but at that time, after break of a week I tried to start and has been a success. Not at the moment.

  Please, any thoughts of what could be the problem?

  Thank you

  Hello Emmanuelle,

  sounded pretty good!

  I got and my laptop is working normally after failed BIOS by following the steps you suggested.

  Now, I have updated the BIOS by the F32 (current release) version and is running successfully.

  Very well.  Thanks about.

• For loops with the cursor line and indexing

  Hi all
  
  I have a question about the loops with the cursor, line and indexing.
  
  How can I scan via a cursor with an iterator?
  
  I would use an iterator as
  
  Whole LoopIndex;
  Whole LoopIndex2;
  
  for LoopIndex at the beginning of the cursor at the end of the cursor
  loop
  line =: cursor [LoopIndex];
  for LoopIndex2 of LoopIndex at the end of the cursor
  etc...
  end loop;
  
  I need to use an iterator because I need to use a nested for loop.
  
  
  
  OR
  
  
  How can I solve the following problem?
  
  Class name % ofClass average test Score
  1 Niobe 7 8 8.4
  1 alena 4 7 7.5
  1 9 7 8.9 Estia
  1 Lilly 10 8 9.8
  1 Sandra 6 8 8.3
  1 Melanie 8 8 8.1
  Nadia 2 8 3 4.4
  Sayuki 2 9 8 8.4
  Diasy 2 7 8 8.0
  Flower 2 7 8 6.5
  Diana 2 6 8 7.3
  3 Flora 7 8 5.8
  Sukiya 3 4 8 8.4
  Samantha 3 10 8 7.7
  Roxanne 3 7 8 6.9
  Eline 3 8 8 7.4
  
  I need to
  -By class, I need to recalculate each average people
  -By class, I need to calculate the % of class score (sum averages / people in the class)
  
  So it can be done in a nested for loop?
  Or do I just step by step?

  Well, based on this information it would be something like...

  SQL> ed
  Wrote file afiedt.buf
  
    1  with t as (select 1 as Class, 'Niobe' as Nm, 7 as Score, 8 as Tests, 8.4 as Average from dual union all
    2             select 1, 'Alena', 4, 7, 7.5 from dual union all
    3             select 1, 'Estia', 9, 7, 8.9 from dual union all
    4             select 1, 'Lilly', 10, 8, 9.8 from dual union all
    5             select 1, 'Sandra', 6, 8, 8.3 from dual union all
    6             select 1, 'Melanie', 8, 8, 8.1 from dual union all
    7             select 2, 'Nadia', 3, 8, 4.4 from dual union all
    8             select 2, 'Sayuki', 9, 8, 8.4 from dual union all
    9             select 2, 'Diasy', 7, 8, 8.0 from dual union all
   10             select 2, 'Blossom', 7, 8, 6.5 from dual union all
   11             select 2, 'Diana', 6, 8, 7.3 from dual union all
   12             select 3, 'Flora', 7, 8, 5.8 from dual union all
   13             select 3, 'Sukiya', 4, 8, 8.4 from dual union all
   14             select 3, 'Samantha', 10, 8, 7.7 from dual union all
   15             select 3, 'Roxanne', 7, 8, 6.9 from dual union all
   16             select 3, 'Eline', 8, 8, 7.4 from dual)
   17  --
   18  -- END OF TEST DATA
   19  --
   20  select class, nm as "NAME", score, tests, average
   21        ,round(((average*tests)+score)/(tests+1),1) as avg_person
   22        ,round((average / sum(average) over (partition by class))*100,1) as class_average
   23  from t
   24* order by class, nm
  SQL> /
  
       CLASS NAME          SCORE      TESTS    AVERAGE AVG_PERSON CLASS_AVERAGE
  ---------- -------- ---------- ---------- ---------- ---------- -------------
           1 Alena             4          7        7.5        7.1          14.7
           1 Estia             9          7        8.9        8.9          17.5
           1 Lilly            10          8        9.8        9.8          19.2
           1 Melanie           8          8        8.1        8.1          15.9
           1 Niobe             7          8        8.4        8.2          16.5
           1 Sandra            6          8        8.3          8          16.3
           2 Blossom           7          8        6.5        6.6          18.8
           2 Diana             6          8        7.3        7.2          21.1
           2 Diasy             7          8          8        7.9          23.1
           2 Nadia             3          8        4.4        4.2          12.7
           2 Sayuki            9          8        8.4        8.5          24.3
           3 Eline             8          8        7.4        7.5          20.4
           3 Flora             7          8        5.8        5.9            16
           3 Roxanne           7          8        6.9        6.9          19.1
           3 Samantha         10          8        7.7          8          21.3
           3 Sukiya            4          8        8.4        7.9          23.2
  
  16 rows selected.
  

• Using repeat with... in... Loops with lists of properties

  I am using a loop "repeat the operation with the variable in the list" with a list of properties where properties are symbols, but it doesn't seem to work; It falls right through the loop. Exactly the same code works when passed a list of properties where properties are integers.
  
  Of after the description of function AW7 repeat with in:
  

  Quote:
  Repeat with X in the list repeats the instructions in the loop with each of the elements in a list. Each time through the loop, the function sets the next item in the list or the following in a property value to the specified variable. As Authorware estimated the list with each pass through the loop, the instructions that modify the list inside the body of the repetition can affect the loop. Authorware maintains a reference to the list of origin for the duration of the loop. This means that the list persists at least for the duration of the loop.
  Syntax:
  Repeat the operation with the variable in the list
  (s)
  end repeat

• El Capitan 10.11.4 updated: loop with "unexpected launchd sigkill.

  MacBook Pro 5.2 mid 2009 with 8 GB memory updated to the version of El Capitan 10.11.4 from the app store.

  Starting after the initial installation stage goes into a loop of reboot with the message above appears black behind the initial grey screen.

  Reinstalled the previous operating system and tried the 10.11.4 install again - same result.

  I noticed several instances of this problem on various hardware systems reported on other web sites.  What would be the right way to collect useful diagnostic information?

  Thanks for any help.

  Two iMacs does not start after the 10.11.4 update

• Film loop with automator doesn´t stay full screen.

  I m doing a video art installation with a 30-minute film that should loop several times. Simply put, I want the film to go as soon as the computer is started. Do that I ve done a soft in automator that I use as a start object. The app tells quicktime to open the movie and he play full screen and pass it when it s over. My problem is that the isn´t movie full screen every second time it s loop and every second it is. Does anyone have a solution for this? It must be full-screen all the time.

  I m using ver El Capitan 10.11.1 and quicktime 10.4

  Hello

  There is another bug of the Automator action.

  Workaround solution, use this script in the "Run AppleScript" action:

  on run {input, parameters}
      set x to item 1 of input
      tell application "QuickTime Player"
          activate
          tell (open x)
              set presenting to true -- full screen
              set looping to true
              play
          end tell
      end tell
  end run