Signal express not saving logs, giving NaN

I need some help.
We have been using Signal Express for about 1.5 years with ok success. (It is really unstable at times.)
We just ran into a new issue the last couple of days.  All of a sudden it is no longer saving our log files.  There is no indication that there is anything wrong.  It runs fine and appears to be saving the data (the logs show up in the log list on the bottom left side).
However, if you go back and try and open the data, it gives only NaN values.  If you look for the log folder where it should be it does not appear and when you save, close and reopen the project, it says that the log files could not be found and have been erased.
We have restarted the computer and all the normal.  We rebuilt the project from the ground up and it is still happening. 
There is plenty of disc space (15 Gb) so that shouldn't be an issue either.
Anyone have any ideas?????
Are there certain conventions we should stick to when naming the logs.  I thought it might be something with the names being used, but there doesn't seem to be a pattern.
Thanks for any advice.

Please attach your project so we can take a look.  Also, what version of SignalExpress are you using and what hardware (if any)?
This account is no longer active. Contact ShadesOfGray for current posts and information.

Similar Messages

  • Signal Express not activated with Labview Full Development System Volume License

    I'm using a volume license manager to generate license for disconnected machines.  I just upgraded to Labview 2009.  The license files work for labview but are not working for signal express.  I have the Labview full development system which included signal express in the past.  Both labview and signal express work fine on my computer that also has the volume licensing manager software installed.   This computer is connected to the license server.  I need to get signal express activated on my disconnected machines. 

    LabVIEW Full Development licenses still include Signal Express. Are you saying that whenever you are connected to the server you can run Signal Express just fine, but whenever you create a disconnected license Signal Express is not able to launch? Can you verify that you are, in fact, checking a license out from the server whenever you are connected to the network?
    If you still have trouble I would recommend calling NI support so we could get more informatioin (such as your license file, contract ID, etc).

  • Not saving log on info

    I reinstalled Dreamweaver on a new laptop and it won't save
    the log on and password info for sites. I've downloaded the 8.02
    update, but can't figure out the workaround for not having the CDs.
    When i try to run the setup, it recognizes that Dreamweaver is
    installed and wants to repair and isn't giving me the option to
    browse as it states in the instructions. Is there any other way I
    can access the file needed for the workaround?

    > I had to install Dreamweaver on a new laptop and it
    won't save log on and
    > password information, even if I check the Save box.
    Anyone have a suggestion
    > for me please?
    Is it version 8?
    know issue of conflict with IE7.
    go to adobe site and get the 8.02 update installer.
    Alan
    Adobe Community Expert, dreamweaver
    http://www.adobe.com/communities/experts/

  • IPad not saving Log-in details

    Can anyone tell me if this is an inherant fault in iOS or just I cant find the right box to tick in 'Settings'.
    On my MacPro and MacBookPro whenever I tick a site's "Remember Me" or "Save details for next time" box, the next time I visit my log-in details are filled in for me so I don't have to remember all my usernames and passwords, but not the iPad, it refuses point blank to remember any settings like that.
    When you are at home you can write down all those details but on the move you wouldn't want to carry them all with you and as for remembering them all well at my age that's getting harder with every passing year! My iPad is passcode protected on opening and after sleep so the fact that it is carry all my log-in details about with me is ok as its protected. Its getting annoying having to remember all this stuff when the machine should do it for you.
    Any ideas folks
    TIA
    Mike

    Hello,
    Please try the steps mentioned here - http://helpx.adobe.com/creative-cloud/kb/unable-login-creative-cloud-248.html
    ~Deepak

  • Signal Express Play Back Help

    I have logged a signal in Signal Express. The logged signal was a force aquired from a NI DAQ system. The logged data consists of a number of peaks all of difference magnitude and period. My goal is to get a list of each of the peaks maximum amplitude so I can later average these force components for analyzation.
    I can already find the MAX amplitude using the amplitude and level function. This does not help me though because it only records the maximum value over the entire experiment.
    Can I do this application in Signal Express? I do NOT have the ability to purchase addtional software such as diadem to do this. I am hoping to carry this out all in the LabView signal express project.

    Hello erb174,
    In LabVIEW SignalExpress, there is no direct way to get all of the peaks in your signal.  However, during playback, you have the option to break your playback file into smaller chunks instead of playing back the entire file all at once.  To do this, from the playback part of the project, select the tab Playback Options.  In there, there is a block size input in the Playback block configuration section.  Using this, you can select the number of samples of your recorded signal to playback at a time.  You can pick a number of samples that is sure to contain only a single peak.  I then used the Amplitude and Levels step to search for the peak in the current subset of my recorded data.  From there you can save this data to an LVM file.  This will get you a list of peaks you created. 
    You could also consider creating a custom LabVIEW step that would search for the peaks for you.  After you create this step you can distribute it with your SignalExpress project. 
    Regards,
    Browning G
    FlexRIO R&D

  • Adding offset to LabView Signal Express signals

    We are using a USB 6535 with LabView Signal Express. 
    The logging need is to record 8 channels of data, with each having 3 unique (0->5V) signals. 
    So far, only the first channel has been wired in an the logging inputs set up.
    With a standard scope, there are offsets to offset a signal vertically, and to thus see the overall time relationship. 
    How is that done with LabView Signal Express? 
    Each channel's 3 signals need to be grouped together and then 8 channels vertically offset for visibility.
    Thanks

    Hello,
    The best way I can think of is to create a constant signal (or however many you'd need) and add or subtract to the signals you are acquiring.  In SignalExpress, there's an Arithmetic step that is helpful for this.  The following KnowledgeBase article from our website offesr one way to do this in SignalExpress:
    http://digital.ni.com/public.nsf/allkb/555B4791612​E261E8625763F0031DC2C?OpenDocument
    Best,
    Ryan C.
    Applications Engineer
    National Instruments

  • Signal Express project document questions

    Hi,
    I'm using Signal Express 2009 to log two current signals(4-20mA) from a NI9219 card mounted on cDAQ9172 chassis.
    Signal #1 on NI9219 channel ai1 is a pressure signal, scaled unit for this signal is PSIA
    Signal #2 on NI9219 channel ai2 is a differential pressure signal, scaled unit for this signal is inch.water
    I have no trouble to view the signals on Data View, both are displayed with the correct value with correct engineering unit shown on Y-axis.
    But when I display the two signals in Project Document, wierd thing happened: signal #1 is displayed in correct value but in inch.water; while signal #2 is displayed in correct value but in PSIA.
    Anybody knows what went wrong?
    Attachments:
    Flow_TEST_PR4000.seproj ‏343 KB

    Hey bon2b,
             When I opened your file, The inlet pressure is in psia and the differential pressure is in inches of water in the project documentation. From what I understand, that is what you wanted. Is that correct? If so you might just need to close and reopen it. Are you talking about the compound graph in the project documentation? I dont see any graphs of individual data, so for the compound graphs, both scales are present on the y-axis. 
    Luke

  • How do I get channel names written into a logged ascii file in Signal Express

    Hi there,
    This maybe a rookie question but I am a relative rookie to this software, and I hope it has an easy fix!
    Background:
    Take a load of analogue inputs from a DAQ device into Signal Express, first thing that hits me is that unlike labVIEW you cannot right click in the channel configuration window and change the name from say... Dev2_ai0 to Air Pressure? I feel that if this was possible then I would overcome my problem? anyway I can't so onwards...
    I goto the DAQmx Acquire window on the top left and can right click and rename the channel, which is great... however this does not translate to the logged data as I get the ai0 channel names across the top of the columns and not the names that I have put in.
    Is there anyway of getting data like the attached snippet?
    Many thanks for your help in advance.
    Neil Barker, Redbull Technology.
    Attachments:
    Channel names.gif ‏4 KB

    Hi Dan,
    Thanks for the reply, that has certainly fixed my issue as I wasn't expanding the channel and selecting the channel that I had renamed.
    One last thing though:
    I now not only get the individual channel name but the prefix for the DAQmx Aquire, for instance I get the Input of Braketest and then the channels under the input data.
    It looks a bit like this....
    Braketest - Front Pres
    Braketest - Rear Pres
    Braketest - FR Temp
    Braketest - FL Temp
    etc etc...
    Now all of the channel names at the top of the columns have this long name. Can this be rectified? can I remove the "Braketest" bit?
    By the way I am saving it as an ASCII so that I can read it in excel.
    Many thanks, Neil.

  • Anlysing saved data in labview signal express

    I need to collect data and later analysed them in labview signal express. I could do as i get thee data but saving the project and doing the analysis later is not working using the add step function.
    What should I do ?
    Secondly how do you convert to ascii and export to excel or word when using signal express ?
    Regards
    Matthew

    Hi mathade,
    I am not sure what exactly are you trying to do. Are you taking some signals from signal express and then saving them and later reading the saved values for analysis? If this is what you want to do, you can simple write your values into a spreadsheet and later on read it from there using the File I/O functions for doing the further analysis. If you want to do it in the same execution run, you can also hold the values in some shift registers and get the analysis done after the acquisition. 
    I can give you more information if you can post your vi so that I can take a look at your progress so far.
    Regards,
    Nitzz
    (Kudos are always Welcome) 

  • Signal Express logging issues

    I am having trouble with the Signal Express advanced logging features. For example, logging will not start at a specified Date/time. I also don't understand the interval logging. If I specify the log to start every 25 seconds and then specify a stop condition of a duration of 5 seconds, I expect the software to log every 25 seconds for 5 seconds. Instead, the logs start immediately for 5 seconds (as I would expect), but then log 2 starts 30 seconds after log 1. Log 3 starts 55 seconds after log 2, log 4 starts 80 seconds after log 3, etc.
    Any input would be appreciated. 

    Hi,
    I had a chance to create a program that logs 5 seconds of data every 25 seconds.  After looking at your program I saw that I had the same settings.  I attached a screen shot of my data view and also attached my signal express project.  I noticed that the time the data was being sampled was correct and the log files were perfect.  The only discrepancy was that the log file time did not correspond to the actual time the data was acquired. 
    Message Edited by Jordan F on 01-12-2009 01:03 PM
    Regards,
    Jordan F
    National Instruments
    Attachments:
    Advanced Logging.seproj ‏120 KB
    Signal Express Advanced Aqcuire.jpg ‏382 KB

  • I have a internet connection thru a cable modem but the signal is not strong to reach one of other rooms, so i purchased a airport express so how do i connect it to the exisiting modem do i have to install the cd that came with it, the modem is connected

    I have a existing internet connection thru a motorola SBG900 cable modem connected to my imac, i purchased a macbook pro but the signal is not strong, so i purchased a airport express but i dont know how to install it, do i have to install the CD on my macbook pro or the imac.  i live in a four bed room house distance between the imac and macbook pro is around 25 -30 feet.
    Thanks
    Yesh

    Hello:
    This article will give you basic guidance.
    http://docs.info.apple.com/article.html?path=Mac/10.7/en/mchlp2875.html
    Barry

  • Recent calls made and received are not saving in call log for Z10

    all recent calls are not saving under call log in my Z10. where can i find the settings for call log?

    I have the exact same problem, the call list remains empty no matter what...

  • Set up Signal Express to log when there is a change in state of the inputs (NI USB-6501 logger)

    Hello NI Forum, I have recently purchased digital I/O logger NI USB-6501.  This arrived with Signal Express, which I intend to use as a Lite version.  I just wondered if it was possible to set up Signal Express to only add a log entry when there is a change in state of the inputs?  I have this working on a 0.1sec sample period and can interrogate the logs after recording.  Most of the time nothing will be happenning, I just wondered if there was a way to reduce the ammount of data captured?  Cheers.

    Ah that unfortunate, and yes start/stop conditions for loging are part of the Full version of SignalExpress
    Here's the comparision: http://www.ni.com/labview/signalexpress/purchasing-options.htm
    Sorry about that

  • How to append data in same log after start and stop signal express

    how can i append my data to the same log file after starting and stopping the signal express ? Is there some option to do this. After start/stop it always makes a new log file. How can append datat to the same log file. 
    Thanks in advance. 
    Munir

    Hello mbhatti,
    I founded a KB which seems do describe the way to solve your problem.
    Appending Data to the Same File when Logging in LabVIEW SignalExpress :
    http://digital.ni.com/public.nsf/allkb/C38AEE499D5CC8C6862572CF006875D2?OpenDocument
    I hiope this will help you
    Regards
    Florian Abry
    Application Engineer Group Leader
    NI Germany

  • Indesign cc files not saving but not giving an error message

    Indesign CC files not saving but not giving an error message
    I have all my restaurant menus in Indesign cc and when emailing them to myself, after changing them to print them from a different computer I experience that the files are not the most updated version.
    Can anybody suggest a solution?
    Thanks
    Janine

    Ask in the ID forum and provide at least some useful info like system specs, what's contained in the files, where they are stored...
    Mylenium

Maybe you are looking for

  • REDO scanning goes in infinite loop and Too much ARCHIVE LOG

    After we restart DATABASE, capture process REDO scanning goes in infinite loop and Too much ARCHIVE LOG being generated. No idea whats going on.... otherwise basic streams functionality working fine.

  • There is a CD stuck in the drive.  What should I do?

    what should i do?

  • Error Accessing an Oracle Function

    Hi There, I am trying to access an oracle function and getting an error. CREATE OR REPLACE FUNCTION simple RETURN VARCHAR2 IS BEGIN RETURN 'Simple Function'; END simple; <cfstoredproc procedure="simple" datasource="MySource" returnCode ="no"> <CFPROC

  • Any linux user around?

    Hi, Thank you for reading my post.   As I will certainly remove the orginal OS and isntall the Ubuntu on my Thinkpad I am looking to know whether any other linux user is around of not, and if yes, can you please share your experience about Linux on t

  • Sap scrpt -  query

    can we do any calculation in sap script means /:  &xyz& *  20  /: command line tag  and say &xyz& is variable. actually i want to multiply one variable with 20 so , can i do any calculation directly in se71 or i hve to do by using form endperform ..?