In the control loop time interval and simultaneous measurement

Hello world

I just started to learn labview so please do not judge my messy programming

I want to constantly measure certain values (humidity, temperature, etc.) and once a certain threshold is crossed, I want to activate a device. Measure and activating things works perfectly if used separately. If I combine it and measure for awhile (10 samples at 100 Hz continuous playback mode) I get the error 200279 "attempted to read samples that are no longer available.

If I use (100 samples to read 100 Hz n samples) it measures for some time (interrupted manually after 4 hours), but I recognized that there was a gap of time of half an hour between the timem system and the 'real' time shown in the table.

Oh, and this isn't really critical time. It is enough if it measures one sample per 5 seconds or more.

Is there a quick fix and dirty for this?

Thank you for your very long in advance.

Hendrik


Tags: NI Software

Similar Questions

  • I use Acrobat DC and I'm unable to open a PDF file on a Web site. Whenever I click the link it says that my drive is not updated. I've updated the player several times now and it always used open. Other documents open on this Web site.

    I use Acrobat DC and I'm unable to open a PDF file on a Web site. Whenever I click the link it says that my drive is not updated. I've updated the player several times now and it always used open. Other documents open on this Web site. http://www.cic.gc.ca/english/pdf/kits/forms/IMM1344E.pdf

    Hi kimberlys49504344,

    It is an XFA file that is not detected by the PDF viewers in the web browser.

    Please right click on this link http://www.cic.gc.ca/english/pdf/kits/forms/IMM1344E.pdf & select ' Save As... ', now, to save the PDF file to your desktop & open with Adobe Reader.

    I'm sure that it will work as it worked on my end.

    Kind regards

    Nicos

  • I bought the student some time ago and downloaded cc, but they are all trials, and they said there is no found membership [was: Hello,]

    I bought the student some time ago and downloaded cc, but they are all trials, and they didn't tell theres no subscription found. What should I do to fix this?

    Your subscription to cloud shows correctly on your account page?

    If you have more than one email, you will be sure that you use the right Adobe ID?

    https://www.adobe.com/account.html for subscriptions on your page from Adobe

    If Yes

    Some general information for a subscription of cloud

    Cloud programs don't use serial... numbers you, connect you to your cloud account paying to download & install & activate... you may need to sign out of the cloud and restart your computer and log into the cloud for things to work

    Sign out of your account of cloud... Restart your computer... Connect to your paid account of cloud

    -Connect using http://helpx.adobe.com/x-productkb/policy-pricing/account-password-sign-faq.html

    -http://helpx.adobe.com/creative-cloud/kb/sign-in-out-creative-cloud-desktop-app.html

    -http://helpx.adobe.com/x-productkb/policy-pricing/activation-network-issues.html

    -http://helpx.adobe.com/creative-suite/kb/trial--1-launch.html

    -ID help https://helpx.adobe.com/contact.html?step=ZNA_id-signing_stillNeedHelp

    -http://helpx.adobe.com/creative-cloud/kb/license-this-software.html

    If no

    This is an open forum, Adobe support... you need Adobe personnel to help

    Adobe contact information - http://helpx.adobe.com/contact.html

    -Select your product and what you need help with

    -Click on the blue box "still need help? Contact us. "

  • For the PID variable time interval

    Hello world

    I measure the ph and control the flow of co2, so I decided to use the useful PID screw like I do for my temperature control.

    the difference and so my question is, I have not want (/ power) to run the PID in a timed loop, in fact my intervals of measurement (eg. every 30 seconds ~ or ~ 60) may vary in the second range, because of the way I acquire data and how I put the valve in co2.

    so my question is: is this a without problem?

    I'm not sure weather the internal timer or providing the dt will explicitly be responsible for this?

    (and I can't test it on atm equipment)

    thx for your time

    Shouldn't be a problem. Don't wire dt, let the PID to use its internal clock. Could make it more difficult to tune the PID, since you will have to account for the worst cases (longer delays between updates).

  • Can't access language option "Add" via the control panel - > regional options and lang.

    Cannot access language 'Add' option via Control Panel-> regional control and options. lang-> keyboards and languages-> text services and input languages. When I click on 'Add', the language menu appears, but I can't take anything as the OK button is inactive. And I know I could do it before because I already added another language to my keyboard. Could you please help me?

    Thank you.

    Hello

    Please continue with the steps below...

    1. click on start, type intl.cpl in the start search box and press ENTER.

    2. on the keyboard and language tab, click on change keyboards.

    3. click on Add.

    4 expand the language that you want. For example, English (United States).

    5 expand the keyboard list, select the United States-International checkbox and then click OK.

    6. in the default input language list, click the language name - United States-International (where language name is the language that you selected in step 4) and then click OK twice.

    7. in the regional and Language Options dialog box, click OK.

    Notice that the language bar appears on the taskbar. When you position the mouse pointer, a ToolTip appears that describes the active keyboard layout.

    8. click on the language bar and then click States United International on the shortcut menu that appears.

    United International keyboard layout is selected.

    See the article below which talks about the same

    How to use the United International keyboard layout in Windows 7, Windows Vista and Windows XP
    http://support.Microsoft.com/kb/306560

    Add or change an input language
    http://Windows.Microsoft.com/en-us/Windows7/add-or-change-an-input-language

    If you don't see the language bar, right-click the taskbar, point to toolbars, and then click Language bar. For more information about the language bar, see the article below for more information:

    The language bar (overview)
    http://Windows.Microsoft.com/en-us/Windows7/the-language-bar-overview

    In addition to changing the input language, you can also customize your keyboard for a specific language or format. For more information about customizing your keyboard, see:

    Change your keyboard type
    http://Windows.Microsoft.com/en-us/Windows7/change-your-keyboard-layout

    Additional information:

    What can I do with regional formats and languages?
    http://Windows.Microsoft.com/en-us/Windows7/what-can-I-do-with-regional-formats-and-languages

    Change your keyboard type
    http://Windows.Microsoft.com/en-us/Windows7/change-your-keyboard-layout

    I hope that this information is beneficial.

    Thank you

    Aaron
    Microsoft Answers Support Engineer
    Visit our Microsoft answers feedback Forum and let us know what you think

  • Need help with the control of time in labview

    Hello eveybody.

    In the image as an attachment, there is a vi that I did to control the amp.

    I give the amplitude value DBL to the amplifier as 50V or 60V and it's there on the amplifier.

    They problem is that I need to control the amplitude with the calendar. I like continious 50V for 5 sec, then peaking suddenly 100V for 1 second or 1msec and so on.

    What should I do?

    Any help...!

    Thank you adigator

    I find the solution and now I got what I thought...

  • Photoshop 6.  Suddenly printing on a printer Epson 3800 using photoshop to control the control of colour printing and printer off, my magenta print terribly - washed and less red.  I contacted Epson and had a long conversation--went through a lot of proce

    Suddenly printing on an epson 3800 using photoshop to manage printing and turning off control of the printer, looked terrible magenta color - washed out, less red.  I had a long discussion with people of epson - tried many things - and concluded that the printer was OK.  In fact, allowing the printer control the color mgt produces much better images.  Same print a jpg file printed from the desktop (without using the PS) gave much better results printing through Psalm do any help?     Thanx

    When Photoshop suddenly changes its behavior and you have not installed new software try resetting you preferences.  In fact if you have installed the new software try resetting your Photoshop preferences.   In the past I have had red impressions cast my Epson 4 800, which has been fixed by resetting my preferences.

  • command prompt in the start menu goes directly to the control box black small and not big box

    Page product HP supposed to go to the start menu and type command prompt and choose Run as administrator.  There was a break in the screen of the typical white box with blue borders with a list of options.

    I typed in it and click on command prompt and I immediately had the window of small black command promt.

    I had to end up with a box by C:\. SFC\ and type SCANNOW after the.

    I can only see C: \USERS\OWNER >

    How can I get the usual box of options?

    Hello viewerx. C: \USERS\OWNER is always the default value in Windows Vista or later, even if you change it manually. You try to perform a file system check? If so, the command is "sfc/scannow" without the quotes.

    If you have any questions or concerns, please let me know. I'm only here to help!

    Mario

  • Word pad does not open and told to go to the control panel to fix, and I say how?

    title says it all

    What version of Windows you are using?

    Try the following?

    Click on start > all programs > Accessories > command prompt

    (If you are running Windows 7 or Vista, right-click and click Run as administrator)

    At the command prompt, type the command of follow-up:

    sfc/scannow

    This will check for any breach of integrity

    Restart your system

    -----------

    Also:

    Check your hard drive for errors:

    Click Start

    Type: CMD, according to the results, right-click CMD

    Click on "Run as Administrator"

    At the command prompt, type: chkdsk /f /r

    When you restart your system, your computer will be scanned for errors and will try to correct them.

  • Triggering and simultaneous measures

    Hello world

    I wrote a Vi to acquire data simultaneously from 7 devices. I use cDAQ9178 with NI9203. The vi will acquire current values 4 to 20mA. Could you please check the attached file and let me know if I need to improve.

    I have a question and I would be grateful if someone can help me to answer.

    1. how to open the binary file for writing to the file measured by EXCEL?

    2 is it better to use write on the worksheet for data recording, if yes how to include the time column?

    3. I will use external trigger via the port of PIF0 signal, is it OK to do with dag support? I have not yet tried, but it seems simple?

    4. Finally, I have another vi for the valve which should be triggered with vi as, is their anyway to do it? I was thinking of the authors of the notification, but I don't know how to use ?

    Sorry to ask too I really urgently need all this. I should finish my Tuesday data acquisition system

    Best regards

    In your example above, you have the Setup to write it into a file measure so it renames an existing file. This replaces the file at each iteration. You must change this to add to the file. It's in the "If this file exists' section of the configuration dialog box.

  • Satellite A100-787: drivers needed to use the control buttons and volume knob

    There should be a program that displays on the screen, the volume level when I change volume and another which allows me to use the game, front, back or stop buttons either with medial player JetAudio.

    Where can I get such a program?

    Are you using the original image of preinstalled Toshiba?
    The image of Toshiba Vista contains all the necessary drivers and utilities and using this OS everything should function.

    If you have installed other OS like XP XP drivers are needed.
    If I m not wrong not the notification of screen volume levels appears not in XP.

    Also if you want to use Toshiba command buttons you need to install the correct drivers as controls, common modules, etc.
    The proper installation order is necessary and important. That's why I recommend that you check the installation instructions on the download page of Toshiba!

    By the way; the control buttons are preconfigured and I don t think that it might be possible to use it with another players as IE Jetaudio.

  • Change the time interval snapshot AWR

    Hello
    in 10g R2 how to change the AWR snapshot time interval of two hours?
    Thank you.

    Hello.

    exec dbms_workload_repository.modify_snapshot_settings (range-120 online);

    [http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14258/d_wkrpos.htm#BACEHJJI]

    Anand

    Published by: Anand... Aug 23, 2009 22:28

  • Vista on the computer using hp laptop and when office comes to the screen after start, all icons and programs are amplified.

    This just happened to new start-up of three days. Prior to this time everything worked very well. Also it some dialog boxes asking to click to launch an application platform that we know nothing about. We have looked for answers and went to the Control Panel, easy access and off Magnifier. But it is magnified. All icons and applications and the magnified programs.are. No new programs have been installed, no fonts won't changed, none of the DPI changed by us. . Some have suggested to go into the registry, but I'm not here. There are available restore points to restore. I don't know why there are no restore points.  Even went in safe mode and couldn't find the restore point. Our solutions may be next = copy data, use the restore disk, and all reinstall. GOSH, there must be an easier than treatment... Or go to the computer repair shop. Suggestions? Please, I beg you!

    I am not literate live windows, the problem is on a computer hp laptop that belongs to my wife. My computer is old desktop with xp. I just do e-mail, word processing and accounting and taxes, etc. Nothing very sophisticated. My experience started with the BACK and readers of diskettes, then on all readers, then for win 3.11, 95 and xp. I don't like vista. I'm waitng for win8 get a new box. Thank you.

    On Saturday, February 18, 2012 23:24:44 + 0000, decafeinepeuvent wrote:

    One of the answers was suppsoed to you also. Sorry, I guess that I have selected the wrong answer area.

    Thanks for responding!

    You're welcome, and I saw your other answers you have chosen
    doesn't matter much.

    You might want to try adjusting the resolution anyway.

    Ken Blake, Microsoft MVP

  • my mouse wheel controls only my volume and nothing else

    My mouse has suddenly begun to control my volume and nothing else, it won't scroll on any page, does not work in photoshop and will not work on one of my games, I haven't downloaded a mouse wheel for volume control programs and I have uninstalled and reinstalled the drives for my mouse Reset my computer several times, checked in the control panel mouse settings and can't find anything that may be the cause of the problem, any suggestions?

    I came here with the same problem and tried all of the above. I came close to reformat my hard drive, but the answer turned out to be very simple.

    I replaced the batteries in my wireless mouse and it works fine now. :)

  • Failure of the Vista Wi - Fi networking and

    Help, please.

    My problem started after installing the Service Pack for Vista on my Satellite A200 (psaec). I am now unable to connect to my router via ethernet or a wireless adapter.

    I tried now to solve the problem.
    Installed the latest drivers from the Toshiba support site.
    Uninstalled and reinstalled the two devices (with delivery to zero before re-Setup).
    Congested DNS, reset the stack tcp/ip etc.
    uninstalled Vista SP1 and tried the above without success.

    Wired devices and wireless are configured to pick up network affecting automatically (tcp/ip v4 & 6).
    The wireless adapter can see the router and connect (reports as being "connected with limited access), but does not have an IP address. I can't access the control panel router etc. and recreate the connection does not work. I also tried to put the ip/dns address etc manually but not joy.

    The WinXP machine on the network has connectivity and the router is configured to allow the laptop to the network.

    One last thing... There is a warning exclamation on the Miniport (SSTP) WAN.
    Tried to update the driver but got the error "a section of installation of service in the INF is invalid.

    hardware and operating system
    Windows Vista Edition Home Premium (build 6000)
    Family of Realtek RTL8101e PCI - E Fast Ethernet NIC (NDIC 6.0)
    Intel PRO/Wireless 3945ABG

    Thanks in advance,
    Bath

    Quick update,

    I found that I can connect to the internet using a modem dial-up on usb.
    I am also waiting for a response from Microsoft on this one.

    Please note that all the safety devices (firewall etc. has been disabled or uninstalled).
    When I started the machine after the installation of SP1, a warning message was displayed on an old file left by a firewall zonealarm installation which I removed while the SP1 is always installed.

    Thank you all,
    Bath

Maybe you are looking for