Labview 2012 Signal Express

We have Labview 2012 Signal Express (version 6.0.0) installed on a XP computer and we would like to upgrade to a Window 7 machine. Will the current version of Labview 2012 works on the Window 7 machine? The Labview 2012 Signal Express is used to control a cDAQ-9172 with a 4-Ch thermocouple module.
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This is the LabVIEW board. Please click on Options and request that the moderator move your question to the SignalExpress board. LabVIEW itself works on Windows 7 but they are two different products and not many people here use SE.

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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).

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???
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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

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

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

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).

Event Acquisition in LabView Signal Express

I have the USB-6009 data logger and LabView Express. I am trying to record certain events as they happen in the process. The signal I am recording is a 0 or 10 V DC signal and each time that signal goes to 10V DC I want to record that as a event. I am not worried about the actual voltage just the event. I am not sure what the best way would be to set this up in LabView signal express. Any advice on how to achieve this.

Hi CoryB,
In SignalExpress you can create events by in the Recording Options tab clicking Events. Then, in the Category list select Add. From here, you can change the options for the event. Here is a link to the help on the events page.
Also, Dennis is absolutely correct. You will get better assistance with your questions if you post in the correct board.
Bill E. | Applications Engineer | National Instruments

Again mixed signal graph and Labview 2012

I have just experienced a weird change in labview 2012 on the mixed signal graphs. In a preliminary analysis, it seems that the most critical behavior is related to the silver mixed signal graph, although i didn't have the time to test the standard one.
Straight to the point... the property "plot area size" not only resizes the plot area, but also the graph; this is in contrast with what happened previously in LV2011. If the graph belongs to a subpane and if the property "fit control to pane" is enabled, the area resize prevents the graph from correctly fitting the pane.
Any suggestion?
cheers
m.
Attachments:
MixedSignalDisaster.vi ‏13 KB

I think that since this behavior is a regression (working properly until LabVIEW 2011 SP1) this should be fixed as soon as possible through a specific fix, without waiting for the next Service Pack.
This regression has been blocking the development of our application.
Could someone from the NI support give an answer, please?
Vix
In claris non fit interpretatio
Using LV 2013 SP1 on Win 7 64bit
Using LV 8.2.1 on WinXP SP3
Using CVI 2012 SP1 on Win 7 64bit, WinXP and WinXP Embedded
Using CVI 6.0 on Win2k, WinXP and WinXP Embedded

How to view signal in a waveform chart in Labview Signal Express?

Hi,
I would like to view a signal in Signal Express 3.0 in a "waveform chart" but don't know how to do it and I am thinking that it may be impossible?
In Labview there are two ways of viewing data, either in a "waveform chart" or in a "waveform graph". The great thing with "waveform chart" is that it lets you define a history length and you can see the data move to the left (strip chart option) as the samples are being retrieved. It works perfect.
In Signal Express I can only select "XY graph" or "Waveform graph" by making a right-click the mouse but I cannot select "Waveform chart". Is it really true that it is not possible to view the data in a "waveform graph with Labview SE? (1 analog signal being read continuously, 100 samples to read at 1K rate)
Thank you in advance,
Enrique
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Hi Enrique,
You are correct that there is currently no waveform chart in SignalExpress. The closest thing you can get to, is recording the data as a log and then viewing it while recording (which I realize is not quite the same, interactive behavior).
For your last comment, you wrote "waveform graph", but I assume you meant to say "chart" there as well.
Sorry about this. We have recently been getting this request, so perhaps in a future version.
Phil

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.

Labview Signal Express and Matlab

Hello,
I am using Labview Signal Express to acquire and log data from an injection moulding machine (with NI USB-6218).
The logs contain more than 65000 samples so my boss told me to treat the data with Matlab.
Can anyone tell me how to do that? (I think that I have to export these data in a text file before but how???)
Thank you very much for your help
Regards.
Helene

Hi there, I’m currently studying mechatronics in Sligo institute of Technology in Ireland and we have to do a SCADA project using LabVIEW to control an injection moulding process. I work in the Water and waste water treatment area so I’ve no experience of Injection Moulding. I found your address on the web and was wondering would you have any screen shots of what an injection moulding SCADA interface would look like or a schematic/P&ID of an injection moulding process. Any help would be greatly appreciated. Regards Richard Crowe

LabVIEW Signal Express, averages

Hello,
I'm brand new to LabVIEW. I have a temperature signal from a thermocouple up in LabVIEW express, and I'm trying to get an average of this signal because it's very noisy. Can anyone provide me with very detailed help (as I'm brand new, and have no idea how to do anything in LabVIEW).
If it's of any help, I have LabVIEW 8.5 and LabVIEW Signal Express 2.5.1. Thank you!

Hello ddrop,
To add to Intelligent's post, here is another example to show you how to create a running average of an array. I am not sure how you have your measurements recorded (if you are creating an array), but this example should give you some added guidance.
You mentioned you were using Signal Express and there are a set of Signal Express examples that may also be helpful. You can find the examples by going to Help>>Open Example... This should take you here: C:\Program Files\National Instruments\SignalExpress\Examples. From there, you can go to Loops>>Frequency Sweep with Averaged Measurement.seproj. While this example does not do exactly what you are doing, it will at least give you an idea of how to do averaging in Signal Express. Another way to incorporate the averaging in Signal Express would be to do a Run LabVIEW VI step. I hope this helps!
Kim W.
Applications Engineer
National Instruments

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)

Why the acquisition with DAQmx is different by using Labview 8.2 from Labview signal express?

Hello,
I am using a PCi-6281 to acquire a voltage. When I am using Labview signal express with only the step to acquire I read the good signal with the exact voltage. But when I am using my VI, the y axis and the values recorded are wrong. Why this difference appears?
I insert a picture with both signal: at the top is the signal from my vi (wrong measurement) and at the bottom is the signal from labview signal express (correct).
The vi I am using is the example Cont Acqu&Graph Voltage-To file (binary).vi.
Thank you for your answer!
Sophie
Sophie

I am using the binary file because it requires the minimum change in another VI. I have tried to change in scaled data but now my second VI has not enough memory to display all data.... What's wrong? Here is my second VI. Totest with data you need to insert a number in the "scaling factor" if not the dat are multiplied by zero...
thanks for your help!
Message Edité par stage84 le 07-24-2009 10:11 AM
Attachments:
Display 3.vi ‏1867 KB

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/555B4791612E261E8625763F0031DC2C?OpenDocument
Best,
Ryan C.
Applications Engineer
National Instruments

Labview 2012 Signal Express

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