Interface labview program with real appliances

How do i interface labview program with real life appliances. For example: interface with light bulb

I suppose you could also find some kind of adapter to turn it into an IP based appliance and you could control it through the ethernet. Or you could wait a few decades and interface LabVIEW 2059 with your cranial implant to directly control your light bulb.
Bill
(Mid-Level minion.)
My support system ensures that I don't look totally incompetent.
Proud to say that I've progressed beyond knowing just enough to be dangerous. I now know enough to know that I have no clue about anything at all.

Similar Messages

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
Solved!
Go to Solution.

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.
/Y
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

Help! Can't open Labview program with MATLAB codes !!!

They used to work! But today I just can't open any LabView program with MATLAB codes in. This also happened some time ago, but after a day I tried again, it went back to normal. Can anyone help me fix it? Many thanks !!!

Hello BLpig,
Thank you for your inquiry regarding problems opening a VI. It sounds like a VI containing MATLAB code will not open in LabVIEW. This problem can happen when using LabVIEW 7 on a Windows 2000 machine. Assuming this is your setup, the following link is a great resource when dealing with this issue.
http://digital.ni.com/public.nsf/websearch/4475BC3CEB062C9586256D750058F14B?OpenDocument
Other resources similar to this can be found on the ni.com website by clicking the support tab at the top of the home page. Then search for �open vi matlab� from Technical Resources at the top of the page or topics similar to this. I hope these resources help. Let me know if I can further assist you.
Shea C.
Applications Engineering

Interfacing LabVIEW 2009 with PIC microcontrolller

I would like to quickly setup an asynchronous duplex RS232 (or USB) communication between LabVIEW 2009 and a PIC16F8xx. Before I get stuck in, does anyone know if there are any reference code templates or examples available for either LabVIEW, assembly or c code (using the CCS compiler) to speed up the development?
Many thanks
Graham

grahamwebb wrote:
Hi, It's a fairly generic application (which is why I started a new thread!) My PIC is generating a PWM output, I'd like LabVIEW to send commands to modify the pulse shape. My commands are simply one character (a, f or p) to represent the parameter to change, followed by an int. So f100 is change frequency to 100. I've sorted the write functions out using an event structure, but I'd like to now add a serial read so I can echo back from the PIC to help with the assembly code writing. I haven't used event structures much with VISA functions. I'd like an interrupt style read.
I could not run your code, since a VI is missing and I do not have your hardware. But that is OK. You had some labview no-no that I correct in your code. Also be careful with using globals and locals in your code. They may slow down your code. Global and locale variables are not pointers but a copy of the original data. A few global/locale with short strings and some values will not hurt you much. But large arrays and complex clusters will do.
Also have you considered using C and not assembly code. It will make things simpler for you. The last thing is KISS (Keep It Simple Stupid). That is a phrase I learned in my time in the army. What is mean is that then you try to do things in a fancy but overcomplicated way. You will quite often fail. As an example if you send the code f100 to your microcontroller you must decode the 100 value into binary number. So why not send the vales as one or more binary bytes that the microcontroller do understand directly. But beware of the endian format.
Besides which, my opinion is that Express VIs Carthage must be destroyed deleted
(Sorry no Labview "brag list" so far)
Attachments:
serial comms with PIC[2].vi ‏19 KB

Error occur while interface labview with power and harmonic analyser

hello,
i done a project to test coreloss of motor. i our project we met some some trouble while interfacing labview software with navonip power and harmonic analyser through rs 232 communiation.i generate some error msg when i am using *IDHN? command to communicate with this hardware...... so i need ur technical support

You will have to supply more info on the error(s) you encounter. Is there a command that does work as expected?
Regards,
André
Using whatever version of LV the customer requires. (LV5.1-LV2012) (www.carya.nl)

Interfacing C# code with SolidWorks via Softmotion

Hi folks,
I need to interface some C# code with a Solidworks model via LabVIEW/Softmotion, and in the interests of not going up too many blind alleys was wondering if anyone can give me any architectural pointers.
I can interface LabVIEW itself with the code either as a DLL or a TCP/IP server, my preference is for a DLL but its not vital. What I'm wondering is if Softmotion will still interface with SOlidworks if I compile the LabVIEW project as a DLL? The C# app will be sending control commands to the Solidworks model, and receiving confirmation messages (e.g. prox switch open/closed) back, so the TCP/IP option seems to make more sense from the real-time control perspective.
ANy pointers would be much appreciated.
Thanks!

Hi,
Sorry in advance for not being particularly helpful, but I'm afraid you just have to try to build a DLL with SoftMotion and try interfacing it with SolidWorks to see if it works. I wasn't able to find any information from previous service requests or any other internal literature on this kind of integration; however, I don't think there would be any reasons why it wouldn't work.
Regards,
Imtiaz Chowdhury
Head of Digital Technologies
Brand786

Labview program interface

Dear all,
I have a some problem in running my labview program.
I intention is to generate an output voltage by using my machine (by Nanonis), thus I am using their program in Nanoinis program interface. However, I might have make some connection wrongly somehow as it is not working. I want to try controlling the duration of the output voltage, maybe like 10 seconds. However, I must have made an error somewhere in the program as no voltage is generated
I would appreciate if anyone can advice me on this matter.
Thank you.
Regards,
uranus999
Attachments:
RelayOutput(Analog output) (trial).vi ‏19 KB

Dear Lynn,
I understand that it might be difficult to understand with looking at the Nanonis sub vi's. Sorry about that. If I upload a PDF of the block diagram, would it help at all?
Anyway, I should clarify one thing about the program. Actually, previously, I have use the similar block diagram but I have tried to generate the voltage by using a DAQ. This time, since I intend to use the Nanonis programming interface (replacing the wire lines) from the relay output to the programming interface-Open App ref instead of the NI daq. I expected that it should work but unfortunately, although the program work for the NI DAQ, it doesn't for the Nanonis programming interface. Thus, I am seeking advice on what might had happen and what I should do. I am still a new in writing Labview programs, thus I really do appreciate to get all the advice that I can get.
Thank you.
Regards,
uranus999

Case study: "Large?" labview programs flooded with different VIT's

Case study: "Large?" labview programs flooded
with different VIT's
Type of application:
Computer with loads of individual hardware connected or other software (either
onsite (different buses) or offsite (Satelite/GSM/GPRS/radio etc.).
Hardware
description: little data "RPM" but communications to all devices are intact.
More "RPM" when many VITs are involved.
Size: 1000+
VITS in memory (goal). Total software has been tested and simulated with 400.
I'm posting
this post after reading this thread (and actually I cant sleep and am bored as
hell).
Note: I do
not use LVOOP (but sure post OOP examples, am starting to learn more and more
by the day.)
Things I
will discuss are:
Case 1: Memory usage using a plugin
architecture
CASE 2: memory usage using VITs (!)
CASE 3: updating datastructures:
CASE 4: shutdown of the whole system
CASE 5: stability & heath monitoring
CASE 6: Inifiles
CASE 7: When the hardware is getting crappy
Total
application overview:
We have a
main application. This main application is mainly empty as hell, and only holds
a plugin functionality (to register and administer plugins) and holds an
architecture that holds the following items:
Queue state
machine for main application error handling
Queue state
machine for status messages
Queue state
machine for updating virtual variables
Event state
machine for GUI
Some other
stuff
Other
global functionality is:
User
logins, user configurations and unique access levels
Different
nice tools like the good old BootP and other juicy stuff
Supervision
of variables (like the NI tag engine, but here we have our own datastructures)
Generation
of virtual variables (so that the user can configure easy mathematical
functions and combining existing tags)
Licensing
of plugins (hell we free-lance programmers need some money to don't we?)
Handles
all communication between plugins themselves, or directly to a plugin or vice
versus.
And now we don't
talk about that (or marketing) the main application .
Message Edited by Corny on 01-20-2010 08:52 AM

CASE 3: updating datastructures:
As we do NOT use clusters here (that would
just be consuming) we only use an 1D array of data that needs to be updated in
different functional globals. If the the number of VITS exceeds so that the
updating of this datastructures becomes the bottleneck, this would cause
delays. And since in this example we use 250 serial interfaces (lol) we do not
want to disrupt that by any delays. When this happends, does anyone know a good
solution to transfer data?
A thought:
perhaps sending it down to the plugin and let the plugin handle it, this should
save some time, but then again if more VITs are added again this would become a
bottleneck and the queue would fill up after a while unable to process it fast
enough. Any opinions?
CASE 4: shutdown of the whole system
Lets say we
want to close it all down, but the VITs need perhaps to do some shutdown
procedure towards the hardware, that can be heavy.
If we ask
them to shutdown all together we can use an natofier or userevent to do this
job. Well, what happends next is that the CPU will jump to the roof, and well
that can only cause dataloss and trouble. The solution here was to let the
plugin shut them all down one by one, when one has been shutdown, begin at the
next. Pro; CPU will not jump to the moon. Con's: shutdown is going to take a
while. Be ready with a cup of coffee.
Also we
want the main application not to exit before we exit. The solution above solved
this as the plugin knows when all have been shut down, and can then shut itself
down. When all plugins are shutdown - the application ends.
Another
solution is to use rendovous (arg cant spell it) and only shut the system down
when all rendezvous have met.
CASE 5: stability & heath monitoring
This IS
using a lot of memory. How to get it down. And has anyone experienced any
difficulties with labview using A LOT of memory? I want to know if something
gets corrupt. The VITs send out error information in case, but what if
something weird happens, how can I surveillance all the VIT's in memory to know
one is malfunctioning in an effective way/code (as backup
solution so the application knows
something is wrong?
CASE 6: Inifiles
Well, we
all like them. Even if XML is perhaps more fahionally. Now Ive runned some
tests on large inifiles. And the labview Inifile functions use ages to parsing
all this information. Perhaps an own file structure in binary format or
something would be better? (and rather create an configuration program)?
CASE 7: When the hardware is getting crappy:
Now what if
the system is hitting the limit and gradually exceeds the hardware req. of the
software. What to do then (thinking mostly of memory usage)? Needing to install
it on more servers or something and splitting configurations? Is that the best
way to solve this? Any opinions?
Wow. Time for a coffee cup. Impressive if someone
actually read all of this. My goal is to reach the 1000 VIT mark.. someday.. so
any opinions, and just ask if something unclear or other stuff, Im open for all
stuff, since I see the software will hit a memory barrier someday if I want to
reach that 1000 mark hehe

I need to interface SCC-TC02 with help of SC 2345 and PCI-6024E DAQ Card.please tell me the procedure and if possible send me the program

Dear Friends,
I need to interface SCC-TC02 with help of SC 2345 and PCI-6024E DAQ Card.But i can not understand example program.please send me the procedure to interface these three componnets and if possible send me the program.
With Regards,
Eswaramoorthy K V

nce of nth triggering pulse. i need to know when the when the ist trigger occurs and when the nth trigger occurs . please tell me how to to . what i know is that event triggering has to be done with start and stop trigger. please tell me how it has to doneSuresh;
What you will need to do is to set up a digital start and stop triggered Analog Input acquisition. Then you will need to have a counter set as event counter, having the specific number of pulses you need configured as the preset value, configured to count down, and generating a pulse after the terminal count has been reached. That counter output will be the stop trigger of the Analog Input operation. In summary, you will have the external pulse being both the digital trigger of the Analog Input operation and the source pin of the counter, and the counter output being the digital stop signal for the analog input.
I'm attaching a Labview VI that does the start and stop analog input acquisition. You will need to include the counter part and set the stop s
ignal to be the counter output.
Hope this helps.
Filipe
Attachments:
AI_Start-Stop_D-Trig.zip ‏25 KB

How to link third party software with labview program ?

I have designed a labview
program to analyse and make
graph and save the datas
from the photon counter using
ni USB DAQ 6008. And the
photon counter is controlled
by the third party software with
itself. both programs are
executing successfully. But
my task is run both the
program at the same time. i.e.
link the third party software
with my labview program.
How to i do this?

Your question is too vague since you give no information as to this third party application. Is it an application you wrote? Is it an application that you cannot change? Does it have a programming interface? Can you eliminate this third-party application and control the photon counter yourself? Have you tried to do a search, as this question has come up before many times. For example:
http://forums.ni.com/t5/LabVIEW/how-do-I-use-labview-to-control-other-programs/m-p/424765
http://forums.ni.com/t5/LabVIEW/How-to-operate-another-application-s-GUI-from-LV/m-p/668088

Interface labview with the test board to identify opamp pins automatically

is it possible to interface LABVIEW to a test board in such a way that the input, output pins of an op amp (8, 10, 14, 16 pin opamps) are identified automatically when DUT is placed in the socket

pratheek wrote:
Thanks alot. pin numbers are variable. I need to test the functional and test parameters for 8, 10, 14, 16 pin opamps.
The first thing you need to do is ensure that +VCC, -VCC, and GND are always connected to the correct pins. I think the best way to do this is have preset wire options that you manually select with some switches (reduces the complexity of the LabVIEW controlled wire switching).
pratheek wrote:
The desired out put for my project is to check the functionality of the opamps
I understand the end goal, but what you need for first specity is the test sequence.
1. Identify In/Out pins & number of op-amps. What is the sequence for this??? What voltages do you apply to the various pins and what is your desired outcome??? How do you identify each pin as in/out and whether they are for OpAmp1, OpAmp2, etc. Since this sequence will inevitabely apply voltage to the output pins, make sure your test sequence doesn't damage the chips.
2. After identfying each op-amp, what is the test sequence for evaluate its "functionality"?? Do you wish to evaluate the gain for various resistor combinations in an external circuit????
3. Now with your test sequences outlined, you can finally begin on getting LabVIEW to implement these functions. I'd use the DAQ digital outputs to a decoder (3-to-8 or 4-to-16). Use the outputs of the decoder to control switches (these switches control the connections between a second DAQ and the test pins). A third DAQ may even be necessary to control the selection of various test resistors. Keep in mind that each of these switches will add resistance to the path so your evaluation must be made measuring the voltages at the op-amp pins (not using the sourced voltage values). Planning the full measurement sequence and requirements before you start will not only help guide your program's development but it will tell you which DAQs are useful and how many you will need.
This is quite an undertaking and we can't really provide any help on the LabVIEW end until you have a full write up of what you want to happen and how (step-by-step details). Once you have that, start thinking about the sequence of events your code will have to follow to make it happen, then come back for guidance/help.

Interface Labview with custom board

Hello, I want to use Labview with a board I designed. To be brief my board has an Altera FPGA, some memory, and a fiber-optic transceiver. I want to develop a Labview program to display the data I'm receiving from my fiber-optic transceiver. I want to know if this is possible to have Labview interface with a non-National Instruments board? What do I need in order for Labview to work with my board. In my previous design I had the received data written directly to the computer's main memory. Could I do something like that, just tell Labview where in memory to get the data to be displayed?
thanks,
joe

Absolutely. I'm doing that right now with VISA. Look at the posting here. There are some links there in how to procede.

Using LabView to run VB program with parameters

Hi,
It's my first message here so I hope I am doing things correctly. I tried to do some research before asking and I found a lot of good informations but right now, I seem to be stuck.
I am quite new to LabView, I did few VIs here and there but nothing really "serious". I am currently working on a LabView interface that deals with VB, Excel macros and Data extraction from Text file.
The VB program is in charge of a motor position, then, some Excel macros are used to do some measurement and the results are written in a text file that I use to plot some graphs.
The VB program I made give the window I put in the picture in the attached files. Basically, you have to enter some values in those TextBox then click on Move and the motor will move. When you click on the button Home, the motor moves back to the position "0", no need of the two TextBox. In my labview interface, I created two ComboBox that contain all the possible values for both of the TextBox of my VB program. What I would like to do, when I click on my "Measure" button on LabView that initiates the VB program, is that it can fill the two TextBox from VB with the data entered in my LabView ComboBox and then run the program, simulating a "click" on the Move button.
Right now, I found a VI (included in the attached files) that runs my VB program from LabView (I use it as a Sub-VI) but I still have to manually put the values in my VB program. My goal would be that when I click on my LabView button to start my measure, the motor moves but the VB program doesn't show up for the user to manually enter the values he wants.
I hope I was clear but if you need any clarification.
I did the the VB program myself.
I can also link the LabView interface I already created if need be.
Thanks for your help,
Baptiste
Attachments:
Moteur.png ‏5 KB
lancerEXE.vi ‏9 KB

First, thank you for your answers.
I know that I don't need to use VB or LabView. I just want for myself to be able to use LabView to manage a program in VB, one in VBA and use data from a text file. I know I could write everything in VBA and that would get the job done. The thing is I want to get away from VBA and Excel as much as I can. In the future, the plan would be to re-write my VBA program with LabView but as of now, I just want to use LabView to manage everything. I know I don't really need it but I want to learn how to do it and have something that works.
So I would like to know if there is way to do what I wish to do, running my VB program with parameters coming from LabView.
Thanks

Is there a way to interface Labview Web GUI with Fusion Charts?

Is there a way to interface Labview Web GUI with Fusion Charts for dynamic web presentation?
http://www.fusioncharts.com/

I have a ballistics program which our clients can use (see attached). Basically there is a series of Cascading Combo boxes that the user must select for Bullet Manufacturer, Caliber, and Bullet ID. The program then goes out to the relevant data file (.CSV) and provides ballistic inputs for the selected projectile. The user is also required to enter in additional data, such as Sight Height, LOS Range, Temp, etc.. Once all data is input, the user either hits the Calculate Button or the Tab (I'm using Event Structures and I now realize this is an issue for Web UI Builder), and the data gets passed to a MathScript which then crunches numbers and spits output to fill a table and a series of Graphs based upon the tablulated data (if so desired).
I was hoping to use Labivew for the first two parts ( Data Collection and Number Crunching) and use something like Fusion Charts for the presentation. I tried learning Ruby on Rails. I was successful with the Ruby part (basically the Mathscript portion) but really got hung up on the Rails section and the need for something like JSON to interface with it. Could not find a useful source of information which really showed you how to combine the two effectively.
Attachments:
Ballistics1.JPG ‏144 KB
Ballistics2.JPG ‏265 KB

I am trying to translate the labview program to a real time labview programming....i wan to know what te the main isse that i need to focus on

currently i am doing a lift monitoring system which made use of labview. Due to time constraint, i have decided to use the real time labview program. However i have no prior experience on the real time programmng, can i be enlighten on the main issue and what are the thing i ned to look out for. is thre any documentation that i can use?

Derek,
Programming for LabVIEW Real-Time is very similar to programming for LabVIEW for Windows. Many VIs do not need to be changed in order to run in LabVIEW Real-Time RT Engines. However, here are some issues to consider:
1) Drivers
2) File I/O
3) Dialog Boxes
4) Shared resources
1) Drivers. If you application was written in LabVIEW for Windows, and then ported to run on an RT Engine on RT Series Hardware, you need to be sure that the drivers you are using are supported on your platform. See KB 28G97MZ8: http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/aad11f924e5b5fd086256a310053a094?OpenDocument
2) File I/O: If you are running your programs on an RT Series DAQ Device, it has no storage device, so file I/O operations will crash. See KB 26FBO0KN:
http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/3c35f5e85476579d862569f50067462e?OpenDocument
File I/O on RT PXI Controllers is supported in 8.3 filename format (no spaces in the filename allowed).
3) When your application is deployed, (Operate>Download Application, Operate>Run, then File>Exit without closing RT Engine VIs), you VIs continue to run. However, the RT Engine runs headless with no keyboard, monitor (limited information displayed), or mouse, so any user interaction previously required by your VIs, such as Dialog boxes, will hang or crash your program. For user interaction with a deployed application, communicate to the Host PC using shared memory, VI Server, TCP/IP, DataSocket, or UDP. See ~\labview\examples\rt\rt communication.llb for examples.
4) Even though your programs now run in a real-time operating system, you need to follow good real-time programming techniques. These include: using multithreading with critical tasks set to time critical priority. One time critical VI with no parallel loops. Avoid accessing or using shared resources in time crital VI (shared resources cause jitter). Shared resources include the memory manager (preallocate arrays used in time critical loops), global variables for interthread communcation (use RT Queues). For more information, visit the LabVIEW Real-Time Resource Library in the Developer Zone: http://zone.ni.com/devzone/devzone.nsf/webproducts/c25f8c664230613a862567df006abb06?opendocument

Interface labview program with real appliances

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