Just noticed that the database connectivity toolkit is part of LV Professional. I seem to recall this was a separate product, with a deployment runtime license fee.
Is that still the case or is it now free if developed with LV Pro?
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does the database toolkit still require runtime license?
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Is it possible to interface with an FPGA VI on a PXI target using something other than LabVIEW?
Hello!
I have a setup that consists of PXI-1036 chassis with a PXI-8108 controller and a 7851R FPGA card in it. There is also a host computer (PC) that I use to run the VIs on target. My problem is that the project codebase is a nightmare to support. I inherited it from another person, I already spent over a month on the refactoring, and I feel that LabVIEW is just not the best choice of the environment for this project. For this reason, I want to move the part that runs on the PC to something else, like C# or Python. I want to keep the LabVIEW code on the FPGA primarily because it makes the DMA transfers and reading/writing variables easy.
The question is, what is the best way to interface the new code and the LabVIEW FPGA code?
Here is what I've been able to come up with so far:
1) There is a NI library that allows to interface C code with the LabVIEW FPGA, so the most straightforward solution would be to set up an RPC server that supports the basic FPGA functions on the chassis controller and call them remotely.
2) It seems that the chassis controller is already running an RPC server (so that the LabVIEW can run the VIs remotely). It would be great to connect to that with say C# code, but I couldn't find any documentation or libraries for doing so.
3) There is a "VI server" and "Web server" options in the properties of the chassis controller, but again I couldn't find any documentation and libraries for using those.
Could you please offer any suggestions on the best way to approach it?
Thank you!
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Ajuste automático del panel de control a la pantalla en vi ejecutable
Moved to another board
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Controls for Single Acting Pump
I am currently trying to create a control program using LabVIEW for a single acting pump. The current vi attached generates a 5VDC signal to open and close a relay. I currently have a 12VDC power supply wired to the normally open terminal of the relay. The 12VDC is used to power the pump. I now want to add code that analyzes load cells and uses a user input to determine when to start our current routine. Currently it operates on a push of the relay button. I want it to start when the pressure transducer readout is less than the set value (constant) I determined (this is used to prevent the pump from overloading) AND when the load cell values are less than the user input.
For example:
1) If the user wants a 200lbs load applied with the pump to a specimen, he or she enters 200lbs in the load cell input field.
2) If the current load analyzed by our NI9237 module is less than the user input in step 1 then send a signal to start the 5V routine attached to this post.
3) When the desired input is achieved we want to stop the 5VDC signal attached.
Any help would be appreciated!
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NI TB 4330 Terminal block doesn't appear in MAX - Unsupported accessory when using MAX
Dear all,
We have just bought a brand new terminal block NI TB 4330 (to replace the damaged one) which is mounted on a NI PXIe 4331 for a PXI 1073.
I have run the VI with the brand new terminal this morning to run two load cells. It worked, I stopped the VI, I run it again and it didn't. I have run the VI 20 times and it didnt work. It says 'unsupported device' is presented. I turned the PC off then turned it on again. The TB NI 4330 terminal block was not appeared in MAX. Can someone tell me how the terminal can be viewed in MAX and what is wrong with this issue?
P.S. The bridge module NI PXIe 4331 passes the self-test in MAX.
REgards,
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How to get Excel Workbook CustomDocumentProperties?
Anyone knows what is the datatype returned from this property node?
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Using Case Structures with momentary switches
I found this example in the NI Example Library, and am bending the concepts to my use. In my application the Case Structure wanted a default Case, so I gave it Zero. The push button switches when not depressed cause the case structure to flip back to zero. I would like the Case Structure, when it see's a 1 to stay there until another button is pushed and then stay there, etc. I don't know if I want to turn a numeric instance into a ringing number or keep the Case from changing unless it see's an integer change. Ideas?? Hopefully the attached png shows up.
Thanks Dan
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how trigger works
I am trying to check how the trigger works. I am trying to make a waveform stable by using triggering. Here I am trying to search the data to find the index at which the trigger condition occurs, and then using that index to cut off the pre trigger portion of data and keep next samples to display. Below is the vi attached. I am not sure how to do that. I tried but I am getting an error. Would really appreciate your help.
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VI logger
I have a legacy application that requires the base version of VI logger, which I cannot seem to locate. Does anyone know where I find this software? (i.e. did it come with LabView package or some other development package?)
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Controlling tab control using using boolean
Hi,
I have a tab control and I want to change the visibility of the front panel pages based on the Boolean it receives. Can someone help me?
Nachiket
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Labview display two graphs in one chart & other query
1. Attached find a VI. A microcontroller hardware sends two values: voltage & current on COM port.
2. I want to display both values in one graph on opposite axis. I have able to display on front panel, but didnt find way on how to connect Current line to same graph & display .
Also is there any way both graphs have different colors?
3. When I make its exe, I want that screen should auto adjust on which desktop screen it opens. Now what happens, on smaller screens part of labview front panel appears down.
4. The three strings indicators , I want that there should be some sort of button or auto-hide, which appear only when i need those on screen, as these are debug values, not to be displayed on normal operation.
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A signal is 90deg-phase-shifted on LABVIEW FPGA
Hello,
I am using the NI PXIe 7279R module with NI PXIe 5733 ADC converter on FPGA unit. I want to shift 90deg-phase of the input signal on FPGA. Unfortunately, on FPGA program, there is no Hilbert transform function for shifting the phase of the signal.
Could you please help me solve my problem? I am a beginner for LABVIEW FPGA.
Thank you very much.
Dong
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Frequency generation at particular intervals
Hi everybody,
I want to generate a signal for particular frequency and i need to start and stop at particular frequency say at mhz with amplitude scale factor from 0.1 to 0.9 and step size in khz, can anybody explain about this? see this link 'https://www.spectraplus.com/DT_help/frequencystep.htm'
Thank you
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adding trigger to oscilloscope
Trying to add trigger to oscilloscope. I want to use the trigger as subvi. But have no idea how to do that. Here I am trying to search the data to find the index at which the trigger condition occurs, and then using that index to cut off the pre trigger portion of data and keep next samples to display.
Could someone please help me.
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How to get a smooth plot?
Hello Everyone,
I have a set of X and Y axis values and I need to plot them as a smooth curve (like: Attachment- Smooth.png) but I get a rough plot with sharp edges (Attachment - Output.png). Could you help me to get the smooth plot?
Thanks for your idea..
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Digital Pulse Genaration and Polt same on Grapg with diifferent Duety Cycle
Dear All ,
I am working on cRIO 9014 with 9472. I am able to genarate a pulses with different duety cycle. Can any body help me to Plot the pulses in graph. PLease find the attached file.
Regards,
CeryleTech
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Labview 2016 Compact RIO on Windows 10
Hi,
I am trying to test Labview 2016 Compact RIO on Windows 10 64-bit, as the company is moving to Windows 10. To make the test, I run it on a Virtual Machine, as I have 2015 running on Windows 7 and it works.
I managed to install 2016 on the VM, but when I start MAX, it complains for the driver.
When I try to run NICRIO1600 on Windows 10, I have an error message "The specified path does not exist." (See attachment.)
Is there a known problem on it? What path does it searching for? Any help would be appreciated.
Regards,
Zoltan
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Data acquisition
I have the following equipment
NI 9234, cDAQ-9188 and an accelerometer PCB 352C03.
My question is, do I need signal conditioner or charge amplifier to connect accelerometer to NI 9234 or is it possible to connect accelerometer directly to Input Module?
Regards
Din
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Creating an Windows Installer for Labview vi
Dear Labview community,
I just finished a labview vi for a course in university and now have to build an exe/installer to make it usable on a windows pc without labview on it.
I built the installer to make labview runtime 2016 accessable on the other pc and an .exe to use my vi. But it wont work. When trying to start the .exe it looks for specific drivers and doesnt seem to find all it needs. it looks for a library called instr.lib and in specific it seems to need a subfolder including some kind of .dll or .exe that is not present.
But trying to execute the .exe on the pc with labview on it, everything works fine.
Do you have any ideas what could be missing in the installer or exe?
best regards,
Michael
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ActiveX Library behaving differently in IDE and Runtime (Adressing a Horiba Spectrometer)
Hello,
I have a problem with an ActiveX-DLL. The DLL is used to talk to a Spectrometer. If I run the VI from the development environment everything works. If I build the exe and run it, the DLL throws an error ("SDK Hardware Key not found. Insert Key to continue").
There is already a thread for this library and problems with it (https://forums.ni.com/t5/SignalExpress/Error-quot-SDK-Hardware-Key-Not-Found-quot/td-p/786744/highlight/true/page/2). Someone even postet the problem with the runtime but got no answers.
I attached the code as a screenshot.
I'm using Labview 2014 32bit on Windows 7 64 bit.
Has anybody an idea what might be the problem?
Thank you very much for your help.
Kind Regards
Michael Roth
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