How to program labview

Excuse me I am programming in labview an i2c sensor but I don't know how to program it in labview please help me
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How are you interfacing with the sensor? You need to know that before you can start writing anything. Maybe something like the USB-8451 or USB-8452 would work for you.
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How to program labview to output continous voltage using NI PCI-MIO-16XE-50

I am an undergraduate student working on a research project. I need to program a labview block diagram to output continous voltage using DAQ NI PCI-MIO-16XE-50. I am new to this and having problems with formulating.
For example, if i need to output 4V, how to output 4V from the DAQ.
I know that there are 2 channels for output. But having problems figuring out which pins to use as well.
If there are any examples,tutorials or whatever hints i could get in order to solve this, that would be great. I am simply confused and wondering where to start.
Thanks in advance.
Confused undergraduate student

Here is an example of how to do some basic analog and digital communication. Since you need a 4V signal you are going to want to use Analog Output.
http://decibel.ni.com/content/docs/DOC-15408
Product Support Engineer
National Instruments

How to open labview program with Quit Labview function inside?

Hi Any idea how to open labview program with Quit Labview function inside?
I forgot to add and set the condition of the type for this program.
If the program is an application, it would close straight away.
If it is still labview work, it will go straight to editing program without closing.
So I need to recover, open it and make some changes.
Clement
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Put the VI in a project and open it from there, then it shouldn't autorun. You can use App.kind property of application to decide whether to close or not.
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LabVIEW 8.2 - 2014
"Only dead fish swim downstream" - "My life for Kudos!" - "Dumb people repeat old mistakes - smart ones create new ones."
G# - Free award winning reference based OOP for LV

I want to send 10 bit ADC from PIC via serial communicaton. i send it separetly 8 bit first then the other 2 bit. how to program in labview to capture those two packet then combine it togother

i want to send 10 bit ADC from PIC mCu via serial communicaton.
i send it separetly 8 bit first then the other 2 bit (2 bit --> with zero at 6 bit from LSB).
how to program in labview to capture those two packet and then combine it together
so i have 10 bit in lab view
thank you

Close, but now quite. You need to specify to the VISA Read how many bytes to read, not how many bits. Thus, the input would be 2, not 16. It's also not clear why you're trying to use the "String to Byte Array". The Type Cast will give you a number based on what data type you wired. You're basically telling it how to interpret the string. In this case we're telling it to interpret the string a 16-bit value, so we'll get a 16-bit integer. I know you said you wanted a 10-bit, but you can't have that. You'll get a 16-bit with 6 bits set to zero. Note: I did not completely understand what you said so we may need to change this slightly, but we want to get the communication and reading collection working first.
Also, since you seem to be setting this in a loop you probably want to monitor this or to collect the data. For that you need a shift register. See attached for a modified version of your attempt. You need to set the datatype to I16 or U16 based on whether the value you get from the PIC is signed or unsigned.
Message Edited by smercurio_fc on 05-01-2007 02:28 PM
Attachments:
Read PIC.vi ‏21 KB
Read PIC.png ‏7 KB

I need to program a Hittite Fractional-N Synthesizer Evaluation Kit with a HMC702LP6CE an external YIG oscillator. Not sure how to use Labview to control the PLL.

I need to program a Hittite Fractional-N Synthesizer Evaluation Kit with a HMC702LP6CE an external YIG oscillator. Not sure how to use Labview to control the PLL.

Here is how to use the PLL. But I don't know of how to interact with that device
http://zone.ni.com/devzone/cda/tut/p/id/3781
And for thouse who don't know what a PLL is a free bonus link is here:
http://digital.ni.com/public.nsf/allkb/07BC8D77D4E9AE258625708B007CE74F?OpenDocument
and a second one on what that device is: http://www.hittite.com/products/view.html/view/HMC702LP6CE
Now we are all caught up to speed.
Sam S
Applications Engineer
National Instruments

How to make labview program to get average value of 200 reading from multimeter (by using loop)

Hello
How to make labview program to get average value of 200 reading from multimeter (I using using loop) to read voltage from mulmeter but I like to get average value of all of 200 reding how can I do that?
Thanks
Wee
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Another idea with less programming - take advantage of the "free" array that comes with a Chart - i.e. the History Data.
1) Wire your DMM data to a Chart. (You can set the chart to invisible if you don't plan on using it in the GUI).
2) Set the Chart History Length to 200 (right click on the chart, click on Chart History Length...)
3) On the block diagram, use the History Data Property Node, wire it to Mean.vi, and you're done.
Easiest running average ever.
Message Edited by Broken Arrow on 04-07-2010 11:36 AM
Richard
Attachments:
EasyAvg.jpg ‏8 KB

Can any one please tell me how to write labview program for data logging in electric motor bike.

Can any one please tell me how to write labview program for data logging in electric motor bike. I am going to use CompactRIO for getting wide range of data from various sensors in bike. I need to write labview program for data logging of temperature, voltage and speed of the bike. Can any one help me?

Yes, we can.
I think the best place for you to start for this is the NI Developer Zone. I recommend beginning with these tutorials I found by searching on "data log rio". There were more than just these few that might be relevant to your project but I'll leave that for you to decide.
NI Compact RIO Setup and Services -> http://zone.ni.com/devzone/cda/tut/p/id/11394
Getting Started with CompactRIO - Logging Data to Disk -> http://zone.ni.com/devzone/cda/tut/p/id/11198
Getting Started with CompactRIO - Performing Basic Control -> http://zone.ni.com/devzone/cda/tut/p/id/11197
These will probably give you links to more topics/tutorials/examples that can help you design and implement your target system.
Jason
Wire Warrior
Behold the power of LabVIEW as my army of Roomba minions streaks across the floor!

I have a DI-151RS, or DI-150RS (?) from DATAQ. Any one know how to program it in LabView?

I have a DI-151RS, or DI-150RS (?) from DATAQ. Any one know how to program it in LabView?

You will find it at:
www.ultimaserial.com/classroom.html

How does the Labview based program apply to computer which without Labview

How does the Labview based program apply to computer which without Labview
student number：1110340001

SInce you list your "student number", you are probably using the student edition.
You cannot build standalone executables with the student edition.
You need LabVIEW professional. If you only have LabVIEW full, you need to purchase the application builder seperately.
LabVIEW Champion . Do more with less code and in less time .

How do I run a J-type thermocouple to the usb-6363 DAQ and program labview to measure temperature?

I have a usb-6363 DAQ and a J-type non-contact thermocouple that I am looking to connect and measure temperature through. However, the DAQ does not have any T/C inputs, which is needed to measure in the thermocouple temperature. I am connecting the thermouple to an analog input (+/-) and I am not looking to buy an amplifier, converter or any other hardware. I believe there is a way to program labview to read in the voltages of the thermocouple and convert it into accurate temperature readings. Any help/ideas?

Hello George,
This tutorial should step you through the basic process of configuring the device and connecting the thermocouple:
Tutorial: Connect Thermocouples to a Data Acquisition (DAQ) Device
http://www.ni.com/gettingstarted/setuphardware/dataacquisition/thermocouples.htm#Connecting a Thermocouple to Your Device
From there, there are a number of things you can do- I'd recommend taking a look at the LabVIEW shipping examples (Help>>Find Examples...) as well as the DAQmx getting started tutorials:
Getting Started with NI-DAQmx: Main Page
http://www.ni.com/white-paper/5434/en
At first glance, the 6363 you're using should have enough resolution to acquire usable data from a thermocouple- if you attempt reading raw voltages be sure that the acquisition range is configured for +/- 0.1V, though.
Regards,
Tom L.

How to program the simple tcp/ip connection?

I would like to know how to program in labview the simple tcp/ip connetion.
And is there some site with examples.

Luciano Kan Horiuchi wrote:
> I would like to know how to program in labview the simple tcp/ip connetion.
> And is there some site with examples.
You should probably start with the examples that ship with LabVIEW. For a good
server-to-single-client example, check out Data Client.vi and Data Server.vi
from the shipping examples, and for a good server-to-multiple-client example,
try the Date Client.vi/Date Server.vi pair instead. All of these can be found
in the following VI library:
\examples\comm\tcpex.llb
or via the Search Examples interface in LabVIEW. There are certainly
additional examples on the NI site, but there's no better place to start than
with these.
Regards,
John Lum

How to use labview with the handyboard

Hi,
how to use labview with the handyboard
Thx...

I'm assuming you're talking about this, since you didn't provide a link for those of us who don't know what you're talking about.
As the other poster said, you didn't say how you want to use LabVIEW with it. If you want to write LabVIEW programs than run on the microprocessor, then you're out of luck. If you want LabVIEW to interact with it, then you've got a couple of options, SPI probably being the best, but it also has DI and AI that you could use to communicate with it - the DI's could be used as a parallel interface.
Message Edited by Matthew Kelton on 12-17-2007 02:21 PM

How to call LabVIEW dll from ATL COM dll

I have tried to call simple LabVIEW 8.6 Dll from win32 test application, class Library.
I have include LabVIEW generated SharedLib.h file and SharedLib.lib file in the test application which I created as simple win32 console project and also from win32 class Library. I was sucessfully able to call my LabVIEW dll funtion.
But when I create ATL COM project and try to add SharedLib.h file and SharedLib.lib file I used to get following erors
Error 1 error C2733: second C linkage of overloaded function 'StrCatW' not allowed d:\program files\national instruments\labview 8.6\cintools\extcode.h 463
Error 2 error C2733: second C linkage of overloaded function 'StrCpyW' not allowed d:\program files\national instruments\labview 8.6\cintools\extcode.h 464
Error 3 error C2733: second C linkage of overloaded function 'StrCpyNW' not allowed d:\program files\national instruments\labview 8.6\cintools\extcode.h 465
Error 4 error C2733: second C linkage of overloaded function 'StrCmpW' not allowed d:\program files\national instruments\labview 8.6\cintools\extcode.h 466
Error 5 error C2733: second C linkage of overloaded function 'StrCmpNW' not allowed d:\program files\national instruments\labview 8.6\cintools\extcode.h 467
these many errors.
Will some one explain me how to call LabVIEW dll from ATL COM dll.
Thanks & Regards,
Jay

I also had this problem. My application is unicode-aware, but I was attempting to link it to a library with primitive C-string arguments. You could dynamically load the DLL as suggested (more work), modify the header files (really not recommended), or if you are feeling lucky you could try fooling the compiler, as I was successfully able to do in Visual Studio 2010, by steering the preprocessor around those functions (assuming you're not using them, of course -- otherwise this probably wouldn't work):
// prepare for NI extcode.h inclusion. avoid linker errors for this project.
#define StrCatW(a,b)     IgnoreLinkError_StrCatW(a,b);
#define StrCpyW(a,b)     IgnoreLinkError_StrCpyW(a,b);
#define StrCpyNW(a,b,c) IgnoreLinkError_StrCpyNW(a,b,c);
#define StrCmpW(a,b)     IgnoreLinkError_StrCmpW(a,b);
#define StrCmpNW(a,b,c) IgnoreLinkError_StrCmpNW(a,b,c);
// header file for my LabView-built DLL (ASCII single-byte character arguments)
#include <MyLibraryHeader.h>
// clean up afterwards, put things back to 'normal'
#undef StrCatW
#undef StrCpyW
#undef StrCpyNW
#undef StrCmpW
#undef StrCmpNW

How to program TestStand to open a Config VI always when a new step is inserted?

I created a step type and packed it within a custom type palette (".ini" file). The code Module for this Step is a LabVIEW Express VI.
Using the "Step Type Menu Editor" I included this new step within the "Insert Step>>"
Menu.
Question: How to Program TestStand or the step type, so that by the insertion of this new step within the
sequence the configuration dialog box of the express VI automatically pops up? (this would be like using
the option "Configure VI..." within the step context menu)
I would appreciate a lot all the help about this issue!
Thanks!
- Caribe -

Caribe,
I. In order to accomplish this you need to insert a custom substep in your step type.
    1. Go to your step types properties and select the substeps tab.
    2. Select the ActiveX/COM Adapter from the Adapter list.
    3. Add a new custom substep.
    4. Rename it -> OnNewStep
    5. Specify the Module.
    6. Object Reference = Step.
    6. Object Class = Step.
    7. Call the Method -> EditCode.
Now every time you insert your step, this substep will be executed and as a result you will get the Express VI configuration dialog.
Best Regards.
Rename the
Message Edited by Antonio Lie (NI) on 08-23-2005 01:30 PM
Message Edited by Antonio Lie (NI) on 08-23-2005 01:33 PM

How to program for dynamic field point?

I am programming an application using Fieldpoint. On the computer that I am coding, the communication port used for cFP is COM3. However on the deployment machine the communication port to be used is COM1. What is the simplest way to NOT having the COM port hardcoded in the program? The solution might have nothing to do with Fieldpoint.
Solved!
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Thank you for your reply Tim-A
I just want to make sure I'm understanding you correctly. On your development machine your compact FieldPoint (cFP) shows with the COM3 alias in the Measurement & Automation Explorer (MAX). And this is how you reference the device in your program(LabVIEW?). When you move to your development machine the alias for the cFP in MAX is COM1. Is this all correct?
Correct.
When you say that you don't want it "hardcoded" in the program, do you mean that you want the program to automatically pull the correct Alias for the device from MAX?
Yes
Now that you mentioned it, I tried to change that constant to a control. However, instead of selecting only ports, I will need to select channel too. For e.g. If I just needed to select the COM on the front pannel and it automatically attach the channel - that can be part of the solution (If there is NO way to automatically program the app to pull the right Alias).
Below is a simple example -

How to program labview

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