TDS2024B Signal Express 2.5 problem

Hello.
I have a problem with SignalExpress 2.5, I have installed SignalExpress 2.5 to use it with my Tektronix TDS2024B, but it does not detect the scope in all...
I have install the package tktds1k2k_setup.exe too... but no way... in "add step" i can not see the Tektronix Label as in my old SignalExpress Tektronix edition (installed in other PC)
How can i add the scope to be able to acquire signals?
Thank you!

Mangatrade,
Check the following link for information about how to use your third party instrument with Signal Express.
http://digital.ni.com/public.nsf/allkb/BC2CE741752EE09086256FFE00779D67
Dario Camargo
NI Brazil
#1186109

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Report generation toolkit and signal express user step : problem of closing reference in "Stop" event

Hi all,
I'm trying to make a package of Vis to easily make Excel reports with Signal Express. I'm working on LabVIEW 8.2.1.
I'm using the report generation toolkit, so I build a .llb from my project which contains all the hierarchy of my steps, but also the hierarchy of dynamic VIs called.
I have made some steps, like "Open Workbook", "Write Data", etc.
My steps run well, excepts one step : "Close Workbook".
If my "Close Workbook" step is firing on "Run" Signal Express event, I have no error, so my reference is properly closed.
But if my "Close Workbook" step is firing on "Stop" Signal Express event, I have an error "1", from "Generate Report Objectrepository.vi".
I feel that I'm trying to use a reference which has been killed in the "Stop" step...
I would like to know what exactly do Signal Express on "Stop" event and why my close function does'nt run well.
Thanks,
Callahan

Hi Callahan,
SignalExpress (SE for short) does the following on the Stop event:
1. Takes the list of parameters that SE found on your VI's connector pane, and sets the values that the user set from the "Run LabVIEW VI" configuration page, if any.
2. Then tells the VI that SE is running the Stop event by setting the Enum found on your VI's front panel. This in turn should produce some boolean values telling your VI to execute the Stop case.
3. The VI is then run, with those values and states.
4. SE checks to see if any errors where returned.
5. Since this is the Stop event, SE releases the reference to the VI which it possesses.
Questions for you would be, is the reference to your Workbook linked to a control on your connector pane, or held in a uninitialized Shift Register. If it's held in a Shift Register, SE would not be aware of it, and would not be able to affect that reference.
Hope that helps. Feel free to post your LLB if it doesn't.
Phil

Export to Excel problem in Signal Express 2012

Equipment used: PXIE-8102 CELERON T3100 1.9GHZ Controller Windows 7, PXIE-1071 4 Slot Chassis, PXIE-4140 4-Channel SMU 1.7.5 version.
I am using Signal Express 2012 and the SMU to plot the I/V characteristics of FET and other active devices. I am able to obtain the anticipated curve traced results but I am not able to Export the data to Excel directly from the Data View using the Microsoft Excel option. The error message is: Data could not be sent to Microsoft Excel. Please ensure you have a properly licensed version of Microsoft Excel. See attachment.
We have checked our version of Microsoft Office, it is Professional Plus and has the correct volume license so it does not revert to a home or student version.
I have been able to use the Export to Excel function directly from the Dataview when I was using one of the waveform tutorials supplied with Signal Express so I suspect it is a function of the SMU.
In conversations with an NI support engineer he felt it may be a problem with "an active x call is just not seeing the license for some reason", his suggestion is to drag the data into Excel rather than use the Data view tab. Because the SMU is being used in a production environment it is not really appropriate to have the operator work at this level so I would rather figure a way to have the data exported using the Data View tab.
Anyway please can you let me know if there are any known work around for this issue.
Thank you

Calvin1957,
I am not seeing any attachments in the first post or this latest post. The images should be added using the attachments section when creating the post. You should also be able to insert an image using the insert image button in the toolbar. Let me know if you have any questions. Thanks!
Robert B
Applications Engineer
National Instruments

Time averaging problem - signal express

Can somebody help me with this problem? I am trying to perform time averaging from signal in Signal Express but the input and the output signals are the same. Attached is the printscreen of the process. Can somebody tell me what I am doing wrong?
Attachments:
signal.JPG ‏51 KB

You should post to the SignalExpress board.

Problems activating signal express 2.0 in labview

Hello,
I have purchased a copy of LabVIEW Base Edition 8.2.1 and Signal Express 2.0. I receive the following error when I create a LabVIEW VI containing a Signal Express VI (in this case a Signal Express Create Signal VI):
NI_MAPro.lvib:
This library is invalidly licensed for this computer. Please contact your National Instruments sales representative to request an upgrade to access the functionality of this library.
NI_Gmath.lvib:
This library is invalidly licensed for this computer. Please contact your National Instruments sales representative to request an upgrade to access the functionality of this library.
NI_AALPro.lvib:
This library is invalidly licensed for this computer. Please contact your National Instruments sales representative to request an upgrade to access the functionality of this library.
I have activated both the LabVIEW application and the Signal Express application and they both work fine indepedently.

Some SignalExpress 2.0 Express VIs require functionality that is only available in LabVIEW Full or Pro. Therefore, if you have LabVIEW Base and drop the Create Signal Express VI, your VI will be broken. (If you convert the Create Signal Express VI to a subVI, you could find the VIs in question).

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.

LEGO Mindstorms 2.0 crashes at startup when LabView Signal Express is installed first

When NI Circuit Design Suite Education Edition is installed first in a computer and the LEGO Mindstorms software second, the LEGO Mindstorms software doesn't work, it reports the following:
Error: A required file is broken
Possible Solutions: Reinstall the LEGO Mindstorms NXT Driver (tried but doesn't work)
Error code: 1003
Ordinal not found
The ordinal 18 could not be located in the dynamic link library NIVISV32.dll
Error loading "fantom.dll"
The operating system can not run %1
On other computers the LEGO software starts running, it displays part of the initial screen and then a small window opens saying that the Mindstorms software has has an error and that it will close. The previous report doesn't show.
If LabView Signal Express is uninstalled and then the LEGO software reinstalled, the LEGO software works.
I've dowloaded and installed new and old versions of the NIVISV32.dll and this doesn't correct the problem. I went as far as version 4.20 of the dll because it is dated in 2007 and the dll file installed by the LEGO software when it works is also dated 2007, but if I install the dll without uninstalling LabView Signal Express, the LEGO software continues not working.
Please advice how to correct this problem without having to uninstall LabView Signal Express first. If the LEGO software is installed first, is LabView Signal Express going to use and not to replace the old 2007 version of the dll installed by the LEGO software? Is there any LEGO software update that corrects this problem?
I repeat: I know a solution is to uninstall LabView Signal Express, install LEGO Mindstorms and then reinstall LabView Signal Express but I have 60 computers already cloned and deployed with this problem, so I don't want to go to this long process to fix the problem. The computers are using Windows 7 and problems happen on both the 32 and 64 bits versions of Windows 7.
Any ideas???
Solved!
Go to Solution.

I couldn't reproduce the error either, but in our x86 computers this problem appeared after several months; we used LEGO Mindstorms last time in Summer 2011 without any problems and just three weeks ago when we were checking the computer for our Summer 2012 classes if when we noticed the problem. I’m still going to try to reproduce the error in an x64 computer where the problem appeared immediately.
Anyway, I’m attaching a word file with images of captured screens where you can see the error reports generated by LEGO Mindstorms and a series of steps uninstalling and reinstalling these program plus LabVIEW, until LEGO Mindstorms finally works after having uninstalled all traces of LabVIEW.
Images can be expanded and zoomed in to a better view of the details and if I can reproduce the problem in an x64 computer I’ll let you know.
Please see if you can find out something based on the images I’m sending.
Thank you.
Attachments:
LEGO PROBLEM.doc ‏3129 KB

Can Signal Express prompt the user for the next ascii file name?

I am using the following to collect data from Thermocouples and Strain Guages in our plant. It allows me to plt data every second, while recording only every 3 seconds to cut down the file size.
Big Loop-
Small Loop-
      Conitional repeat...
      DAQmx Aquire...
      Statistics (mean) Temp...
      Statistics (mean) Press...
      Current Iteration...
End Small Loop-
Save to ASCII/LVM
The problem is that I have to configure the save step as "overwrite once, then append" so I get a single file each time the project runs. How can I get Signal Express to either prompt the user for a new file name with each run or have the ascii file saved into the log directory for that run. As it stands now, the file gets overwritten with each new project run.
Thank you.
new user

Hi crawlejg,
You can set signal express to increment the file being created each time. But if you are looking for 1 new file each time the project runs you will have to use LabVIEW as this advanced functionality is not available in Signal Express. If you need help getting this to work in LabVIEW or have any other questions please feel free to ask!
Sincerely,
Jason Daming
Applications Engineer
National Instruments
http://www.ni.com/support

How can i generate AMI line codes in LabView signal express?

i wish to conduct a project that uses AMI line codes. but i have a hard time using signal express to generate it. can anyone help me with that?

Hello Barry,
That is really a problem, in LabVIEW, we can only convert vi to the previous version, I have version 7.1 and so I can only convert to version 7.0 and you cannot open this too.
But I think that it's very easy to do what I'm trying to explain you.
Go to the cluster group in the functions pallete. Place an unbundle by name function in the diagram and connect it to the data that's comming out of the FFT Power spectrum vi - the pink (or watever) wire.
Click in the white part of it (it should contain something like f0), choose magnitude.
This is now an array that you can connect to the peak detector function.
Take care about the threshold and width parameters of the peak detector.
Take a look at your signal and decide the amplitude and width of the peaks you want to detect. The threshold is the amplitude above what you consider as a peak, the width is a little bit more complicated - to begin, 3 or 4 should be a good number if you signal is not too noisy - bigger widths will somehow do a kind of a low pass filtering to your signal.
The position output of your peak detector is an array of locations where your peaks were found.
Keep in mind you are now working in frequency domain and that position means something in the frequency domain.
The array you placed as input of the peak detector is an array of points starting in f0 and separated by df (the other elements of the cluster).
So to calculate the real value of the peaks, you have to multiply them by df and add them f0.
Sorry by the big text and sorry if I went too much in detail,
Hope it helps,
Paulo

Signal express record from 3rd party VI driver

Hi,
Highlight - Can I record data from a 3rd party VI driver in signal express?
Detail - I am tasked with developing a 'easy to use' data logging system for both voltage and temperature. Voltage will be logged via a NI cDAQ module, no problem here, temperature however will be logged from a LakeShore temperature controller, ie from a third party driver. My first thoughts were to use Signal express rather than coding my own GUI, obviously SE is easy to use for cDAQ Voltage modules.... but has it been crippled to prevent the use of VI drivers for third party kit?
Ideally I would like multiple series plotted and recorded by Signal Express, some from the cDAQ modules and some from one or more Lakeshore temperature controller and monitors, is this fundamentally possible in Signal Express? I can see that SE seems to have the ability to run labview VI's so I am hopefull!
I am using NI 2013 - full bells and whistles.
Cheers,
Chris

Hello wonderwizard,
Yes you can use a Plug & Play Instrument driver. Some examples have already been created and mentioned in this Knowledge Base Article.
http://digital.ni.com/public.nsf/allkb/BC2CE741752EE09086256FFE00779D67?OpenDocument
Hope this helps.
Shazil M.
CLAD
Applications Engineer
National Instruments UK & Ireland

Signal Express 2009 causing NIMAX to generate an Error Exception message

I have a system that gives an error message when I try to open an instrument in NIMAX. The popup error message says "unexpected Error", with a code of "MAXKnownException. This system is running Windows XP and we had Signal Express 3.0 with NIMAX 4.3 running perfectly. We upgraded to Signal Express 2009 with NIMAX 4.6 and this problem occurs.
The error log message that is gereated is
"The niVISAui.mxx plug-in caused an exception in the CmxAggregateItemUI::GetToolbar function in the NIMax process."
Thanks
Solved!
Go to Solution.

Hello,
I am getting the same message stating "Measurement and Automation Explorer encountered an unexpected error since it was last run. For more information, visit ni.com/info and enter the Info Code MAXKnownException." I did so and matched all the known exceptions but could not really find anything useful.
I am using MAX version 4.7 have LabVIEW 2010 and the latest verion of NI-DAQ installed as well. I am using this on Windows XP OS.
I have also attached the error message screenshot in this post (Error1.jpg).
In addition I have also added the error messages which I received on continuing to open the MAX nonetheless and then opening Devices and Interfaces and the error on trying to work through using LabVIEW Signal Express for DAQ. (Error.jpg)
Could you please let me know what this might be about and how can I resolve the errors?
Thanks,
Rohit Parakh
Attachments:
Error.JPG ‏31 KB
Error1.JPG ‏42 KB

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

I am trying to use generate code in signal express to import into labview.

I get this error when i try to generate code in signal express to export to labview . I have tries the error suggestions but I am still having problems. any help would be appreciated
The version of LabVIEW you are generating code into does not contain all the necessary SignalExpress support files. Make sure you launch the version of LabVIEW with SignalExpress support installed before generating code from SignalExpress. If you want to generate code into more than one version of LabVIEW, uninstall SignalExpress and all versions of LabVIEW except the earliest. Install SignalExpress, then install any other versions of LabVIEW. Copy the files from the vi.lib\express\SignalExpress directory of the earliest installed version of LabVIEW into the same sub-directory location of any other version of LabVIEW in which you want to include support for code generation.

Typically, this problem is repaired by following the directions on the error message. Since it was not, can you please give us more information so we can start determining the cause?
What version or versions of LabVIEW do you have installed? What version or versions of SignalExpress do you have installed? Could you post a file with a listing of the files in <vi.lib>\express\SignalExpress for the version of LabVIEW you are trying to use. You can either post a screenshot (in PNG or GIF format) of the directory dialog or use the command prompt to generate a list to a file (preferred). To generate a list with the command prompt, do the following:
Launch the command prompt from the start menu — Start»Programs»Accessories»Command Prompt
Navigate to the drive you have LabVIEW installed on ( usually C: ) — C:
Change directory to the appropriate LabVIEW directory — cd "\Program Files\National Instruments\LabVIEW 8.2\vi.lib\express\SignalExpress". Change the LabVIEW version to the one you actually are using. Do a directory listing and redirect the output to a file — dir > filename.txt. You can use any full path for the filename.txt. If you specify a simple name, it will end up in the current directory.
Please post your project. Verify that you are using the version of LabVIEW you think you are by launching it before you start code generation.
Thanks for your patience.
Message Edited by DFGray on 08-28-2008 08:23 AM
Message Edited by DFGray on 08-28-2008 08:24 AM
This account is no longer active. Contact ShadesOfGray for current posts and information.

Interface to HP34970A with Signal Express

Hello,
I am trying to interface an Agilent HP 34970A using a demo version of Signal Express 1.2. I installed the ivi-com driver version 1.0.0.4 from Agilent. When I go through "add step/IVI DMM Acquire" there is no instrument driver available in the pull down menu. Is there something I should do in MAX ? I have the same issue with a scope TDS 7104 using Tektronix ivi driver 2.5.
Thanks for your help.
Rob

Rob,
Thank you for contacting National Instruments.
It sounds like there is a problem with the installation of the instrument drivers. There is a knowledgebase that walks you through the installation of IVI drivers with SignalExpress. Also National Instruments provides instrument drivers for Tektronix TDS 7104 and Agilent Technologies 34970A.
The drivers that you have currently installed should work, but the National Instruments instrument drivers for the two devices could be more likely to install properly. Also please step through the associated knowledgebase.
I hope this helps. Please let me know if you still are having the same issue. Have a great day!
Sarah S.
Applications Engineering
National Instruments

Signal express project documentation

I've been having problems with the "project documentation" section of my Sound And Vibration Assistant (based on signal express). It's been locking up and corrupting previously good projects. When I add the peak search step to the documentation and hit "view as - cascade" everything seems to fail, the project locks up, is not responding, it doesn't even let it close, have to call task manager to close it, after that when I try to open again that same project, it doesn't even open fully and is locked up again. Any help with this would be apreciated.

Hello Seth, I'm attaching a couple of files. The first one contains a screen shot of the steps that I'm using in the project, The second one is the message that I received when SAV assistant quit on me and the third one is the printout of project documentation before it started failing, the second to last graph is the one I think is creating most of the problems, when I removed that graph from project doc it worked fine, other than when I tried to resize one of the other graphs.
I'm gathering data from an accelerometer I take the time domain signal and transfer it to freq domain, zoom in on the power spectrum linear magnitude scale.
Let me know if you need any other info.
F@SII
Attachments:
SAVsteps.docx ‏200 KB
SCREEN SHOT FAILURE LABView.docx ‏213 KB
hppscan6.pdf ‏233 KB

TDS2024B Signal Express 2.5 problem

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