control labview remotely
I am in the process of designing a home automation software program using labview. I don't know a lot about networking so I need some help. I have digital IO boards that I want to contol a relay bank to control my home equipment, that part I know how to do. Right now I can use remote desktop connection to control my VI running on another computer. What I want is to have one computer running my main program and contolling my digital IOs. I want to be able to see this VI running in real time and contol it from anywhere on any computer which should be possible. I think if I have the main computer be a server computer running server 2003 I think it has its own kind of remote desktop connection. What I don't like about using remote desktop connection is when you log into the other computer it logs that computer off. I want to be able to see what is happening in real time. So I could be standing beside the server computer running the VI and log onto it with my wireless laptop and watch live as I turn on different digital outputs. Does this seem possible? I know of a guy that was really good with PLCs and he had PLCs running his entire house with live video and everything. He could get online and control the PLC from anywhere in the world. He is from Ohio teaching a class in St. Louis and he logged onto his computer in Ohio and c...How to easily control multiple controls in labview
How can I easily control multiple controls with a single write to in Labview? For instance, I need to update 50 different boolean indicators. When I update them one at a time I use a cntrl refrence in my event structure, but outside of an event structure how can I easily cycle through them and update without making 50 local variables if I need to do them all at once?
Why don't you use an array of boolean indicators?
Have a look at the example attached <a href="http://forums.ni.com/ni/board/message?board.id=170&view=by_date_ascending&message.id=204328#M204328" target="_blank">here</a>, which can also be applied to this. You should usually avoid updating the value of a control from more than one place, though (unless it's something like initialization, where you can guarantee not having race conditions).
Other alternatives: using an array of booleans or using the picture control to create the image.
The way i use these booleans in my UI, I had to make them separate so I could arrange them in a user friendly way. And yes this is just for initialization so they won't be getting updated in two places at once.
...Reading controller data into LabVIEW through serial connections to controllers?
I'd like to read data from environmental chamber controllers (System Plus) into LabVIEW through RS232 connections. Has anyone done something similar? I see interfacing with the serial controllers as the biggest obstacle and although not directly related to LabVIEW programming, I'm hoping someone here can give me some advice or resources on how best to do so now days. My first thought is to write a program with VB or C++ to act as a terminal and write the data to a text file for LabVIEW to poll. Aside from using Telix decades ago to work with BBSes, my only other serial experience consists of interfacing with a Kiethly multimeter using a C++ program. I would rather not use multiple PCs but I have never worked with more than one serial port on a computer before in the past. Perhaps LabVIEW itself already provides for multiple serial card communications (wouldn't that be perfect)? Any info would be great. Regards, Dave
LabVIEW has had support for serial communication for as long as I've used it and may have been part of version 1. It also supports multiple serial ports - built-in and USB->RS232. There are even a couple of shipping examples. I've not used this particular chamber but I've used several with serial connections. It's a matter of getting the programming manual and working through it if a driver does not al...Remote monitoring and control of a Labview program
I would like to control and monitor my robot program written in LV
version 6.1. It runs inside a professional firewall at my company. I
need to see and control the main VI and any other VI's that may pop up
on the "target" machine from my home PC. Can this be done in a secure
way? PS: I only know my own IP address, the target IP address is
probably not available to me due to firewall protection. Also I am not
expert in TCP/IP protocol.
LV6.1 does have built in functions for remote control or remote
viewing (faster) through an Internet browser or another PC running LV.
I don...How can i use labview.tlb to control Labview from an external application?
I've been told by a labview engineer that i could use the file
labview.tlb located in the labview install folder to control labview
from an external application (in my case, a C# app). I'm using Labview
6.1 under Windows 2000. This article confirms that:
"ActiveX and LabVIEW"
But i've not been able to find out how to use this file to achieve
what i want. I just want to be able to open/close labview, open/close
a vi, start/stop a vi, hide/show a vi from a C# application. Th...How do I use a LabView control element as ActiveX Control in another application?
I am was trying to include some simple ActiveX Controls(sliders,
buttons) in my VBScript. It worked with other ActiveX Components from
the web, however I wasn't able to include the LabView ActiveX Controls
because I was missing the necessary IDs. Moreover I was able to test
the LabView control by inserting it into the VC++- Test Container. But
I still can't find the necessary IDs...
I don't believe that any of the LabVIEW controls (except for 3D
Graphs) are ActiveX controls so I'm not sure what control you were
able to insert into the VC++ container. What's the exact name ...I need to control MDrive17 Motor through Labview
Iam using Mdrive17 Motor .The Mdrive company has given their software called IMS terminal. If i type this commands
"?MR 90000" through IMS Terminal, i can able to control the motor rotation. For verifying this , i tried in Hyper terminal, Its
working.But when i tried in Labview using Serial read and write , iam not able to control the motor. But it works in Hyper
terminal and the software which is provided with Motor.
Iam getting the error " Error -1073807298 occurred at VISA Write in Basic Serial Write and Read.vi"
VISA: (Hex 0xBFFF003E) Could not perform operation because of I/O error.
Iam setting the following for serial
Bit rate : 9600
data Bit : 8
Parity : None
Stop Bit : 1
Flow Control : Xon /Xoff
Please help me
I worked with one of those and looking at the config file I can see that at least in my case the flow control is set to none. The protocol itself is described in the manual.
I did nt find any details for programming in Labview. In Manual , the commands are mentioned. Can u send me the labview code to read the data from motor or write data to Motor. r u using this motor. In Manual, it explains about the IMS Terminal,but not using Labview.
If u have a...Using the cFP controller with only LabVIEW and FIELDPOINT software but no LabVIEW RT
I have a cFP-2020 controller and cPF-AI-100 modules which I intend to use in a small project. I do have LabVIEW and FIELDPOINT software but I dont have LabWIEW RT software. Is it possible to use the cPF controller with only just LabVIEW? if yes, I would like to be advised how. Thanks
It is not possible to set up your system without Labview realtime module.
There are system integrators who can build a executable for you. You can search for a alliance member by using the following link; <a href="http://sine.ni.com/apps/utf8/niaa.search_display" target="_blank">http://sine.ni.com/apps/utf8/niaa.search_display</a> Or call your local NI branch office. But if you are planning to do more realtime projects in the future this wouldn't be costs effective.
Another option is to use compact fieldpoint pc controlled backplane (so there has to be a PC to control your compact fieldpoint system (not deterministic)). You can do this by using the compact fieldpoint ethernet backplane; <a href="http://sine.ni.com/nips/cds/view/p/lang/en/nid/202527" target="_blank">http://sine.ni.com/nips/cds/view/p/lang/en/nid/202527</a>
Good luck with your project, and please let me know if there are any questions,
...How do I control flow through MKS Mass Flow Controller using Labview
How do I control flow through MKS Mass Flow Controller using Labview?
Im new to LabVIEW please let me know bout it in detail. Thanks for all the help.
...can Labview 7.0 control an instrument without the labview driver?
hellow,i have an instrument which do not have the labview driver,its
output signal is RS232,so can i use labview7.0 to read the signal?
Another possible option is to use the Instrument I/O Assistant. It is
an interactive tool that generates Instrument I/O and response parsing
code for you. It is very helpful in establishing a connection and
helping parse instrument response data. It is pretty high level and
basic, so if you want to utilize any special serial VISA functionality
it may not go as deep as you would like - but it can definitely help
get you started.
...stepper motor control using labview fpga
I m a beginner to Labview fpga.
I am trying to develop an application using labview fpga.The idea of my logic is as follows.
Two push buttons should be connected to compactRIO.With these buttons, one should be able to start a and to stop a stepping motor.If one of the buttons is pushed,the stepping motor starts accelerating until the speed specified within the Software GUI is reached.Then it goes on turning with that speed until the other button is pushed.Then it decelerates until the speed is zero.Both acceleration and deceleration shall be implemented with a simple ramp function.As mentioned above, within in the software GUI one should be able to define the maximum speed of stepping motor.There should also exist two buttons in Software GUI which have the same functionality as hardware buttons.Further more,there should be an indicator for four possible states of stepping motor(stop,continuous speed,accelerating and decelerating)
Any ideas on how to proceed are appreciated.
Thanks in advance.
...control de motor a pasos por labview
Necesito realizar el control de dos motores a pasos por el puerto paralelo, lo tengo pensado hacer por medio de labview, solo quiero manejar una interfaz entre el puerto y los motores, pero si tienes una mejor idea por favor comentamela. Quisiera saber como generar los pulsos para los motores y poder hacer el control de la posicion y la velocidad.
Gracias por su ayuda.
Existen interfaces especializadas de NI para el control de motores como las tarjetas de control de movimiento o las de entras/salidas digitales de alto voltaje, te envio un link para que veas las di...VIs that allow you to test if a given control is a control of a particular LabVIEW class type
The attached zip file contains VIs are saved in LabVIEW 8.5.
Included in the .zip are three VIs you may find useful when working with LabVIEW classes.
- Qualified Name Array To Single String.vi takes a VI's qualified name, given as an array of strings, and converts it to a single colon-delimited string. This VI may be useful for working with VIs owned by any library type, and it is used as a subVI of the other two VIs in this .zip file.
- Is This Control Of This LabVIEW Class.vi takes a control refnum and a LabVIEW class refnum and tells whether the control is an instance of the given LabVIEW class. It returns true for regular class controls/indicators and for XControls of the class.
- Is This Control Of LabVIEW Object Class.vi is the same as the previous, except it does not take a class refnum for input. LabVIEW Object is the built-in class that is the ancestor of all other LabVIEW classes, and this VI specifically checks to see if the given control is an instance of this class.
The second two VIs in this .zip file are both password protected. In a built application, both will return a "not supported" error.
Detecting Controls of Specific LVClass Types.zip:
http://forums.ni.com/attachments/ni/170/279037/1/Detecting Controls of Specific LVClass Types.zip
I'm seeing an 1063 error when I try to use the "Get Control Data Type.vi" on a control extracted from a cluster or an array. The error does not show up if I...RT Reboot Controller and RT Ping Controllers with PXI-8184 and LabVIEW 7.1
I?m having problems using RT Reboot Controller and RT Ping Controllers from the Real-Time Utilities palette with LabVIEW 7.1, but only with PXI-8184 controllers. This work fine with PXI-8175.
The attached VI will list all the 8175 on the subnet, but none of my 8184. However, I can ping and FTP all my 8184. If Local Subnet? is TRUE, I don?t get any error, but the RT controller doesn?t reboot. If it is FALSE, I get: Error 63 occurred at TCP Open Connection in FPC open connection.vi->RT Ping Controllers.vi->MssUT-RebootController.vi. All 8175 and 8184 are on the same subnet and ahve the same IP settings (mask, gateway, DNS server). None of them is locked with a password.
What?s wrong with this VI and 8184 controllers? Please don't tell me to upgrade to LabVIEW 8.2, I can't, these systems are under production in 3 sites in 2 countries. We already have 16 PXI-8175 deployed that control cars from trains in hump yards.
The issue is that the PXI-8184RT was released after LabVIEW RT 7.1. The RT Ping Controllers uses an internal protocol to find ethernet base devices. It is actually used on more than just RT targets as other products like GPIB and Seria...Control/Indicator descriptions are not imported or checked from LabVIEW to NI RG when they are placed on Tab controls
I am currently testing Requirements Gateway. As it seems it does not find any controls placed on a tab control to see if it is covered or not.
Is there any reason not searching for controls placed on tab controls?
We have VIs iterating over complex Front Panel structures to find all controls. Maybe we can add this functionality to NI RG LabVIEW interface.
Is there anyone can help in this?
...DSC module 7.1 labview 7.1, new controls and functions not showing up in labview
I have installed labview 7.10 (also tried update to 7.11)
and DSC module 7.1
I thought I would get additional functions and controls in labview due
to installation of this module, but I do not see addtional controls or
functions, althought I have searched for them and set the controls to
Anyone any idea what I have to do.
thanks and regards.
...How to control Arcus Technology's PMX 2 ED motion controller using labVIEW
Please guide me, for controlling the PMX 2 ED using labVIEW. http://www.arcus-technology.com/pmx-2ed-sa.php?osCsid=4cc1dd9c238572468a87a72d16d7fd93 Please let me know if any one has used labVIEW for this before.Thank you.
There seem to be USB drivers for that device. Have you installed them? Was there a DLL provided? If so, you can call the DLL functions using Call Library Function. Do they have a software programming manual?
Thank you for instant reply. I downloaded the driver. Its not helping to run it using labVIEW. They do not provide DLL. They provide some VI. Its not helping much. Thank you.
Well, I don't have the instrument or the drivers so can you provide some details into this VI that they provided? Perhaps if you upload it (assuming the license agreement for the software allows you to do so).
Thank you. just few minutes ago I could make the motor run using the VI they have provided.
...LabVIEW 8.0 changed a constant that was wired to a Case structure to a hidden control to maintain compatibility with LabVIEW 7.1 and earlier.
Y am i getting this msg?
This happened because "...LabVIEW does not compile code on the block diagram that does not execute. For example, LabVIEW does not compile any code that exists within the inactive subdiagrams of the Conditional Disable structure. In addition, LabVIEW does not compile code within a Case structure that has a constant wired to it that would not execute the case with the code..."In the other words, if you have case structure, which is wired to T/F constant, then prior to version 8.x both cases will be compiled. From version 8.x the only "executed" case will be compiled. So, LabVIEW replaces constant with control for ensure that both cases will be compiled as before.
refer to <a href="http://zone.ni.com/reference/en-XX/help/371361A-01/lvupgrade/labview_8_0_features/" target="_blank">this document</a>
Got it andrey thanx
...Remote control of Labview using DCOM, class object not registered on local machine
Hi, I'm being frustrated trying to use DCOM (ActiveX Automation ?), which p=
roduces the above error, "Class object not registered on local machine". I =
know exactly the reason why it does that, now. But am quite disgusted by th=
e hackery that I'll probably need to do to fix it. I hope I'm wrong.<br><br=
>Here's basically what I'm trying to do.<br><br>The "server" has LabVIEW 7.=
1 installed, and is running a VI which I needed to retrieve info from, and =
control. The client machine does NOT have LabVIEW, nor the LabVIEW runtime...Re: I would like to remotely control a LabVIEW application. Is it possible to create multiple different passwords for different users
I tried the Remote Panel Login examples which were attached by Zvezdana S. It works when main.vi running in Labview enviroment. But after I created a executable file of main.vi, it didn't work, the Web Server: Browser Access couldn't be changed from "remote panel loging.vi". BTW, both main.exe and Remote Panel Login,vi run at the same PC.
I am confused by ports number, ini file.
How could I set port number when they are running at the same PC?
When I built the executable file, ini file was built in as a support file...Re: "Hi,I'm having problems controlling the Agilent E4422B Signal Generator with Labview. When using the Labview driver functions such as initialize instrument I always get an Error -1074135040
Attached please find the files containing all the information concerning my attempt to control the Agilent E4438C. Hope you can make sense of it and help me.
If this driver supports multiple instrument models, then you will probably have to set the model in the default settings in MAX.
Ray FarmerMessage Edited by...Labview and Xbox controller
HiI�m creating an aplication with labview and I need to use a ugitar hero controller or an xbox 360 controller. The controller already works in windows vista but it is recognized as a Human Interface Device HID. I have only use the usb ports in labview as COM (serial) ports and I do not know how to get data from de controller. I need to know the packet the controller or the guitar is sending to the computer.I hope that some one already have a program that can do this or maybe someone has an idea how could I achieve it. Are there any libraries for USB or any tutorials?Thanks
Look at the Input Device palette. This should enable you to read from any
input device recognized by windows.
...how to synchronize controllers in labview
I have three controllers(knop) that I need to synchronize. But how could I do that without getting race conditons.?
When one of the controllers changes value, the other shall get the same value.
Events in coordination with global variables... that should do the trick.
...LabVIEW to control a PLC
So on the NI website there is a lot of white papers talking about how
it is easy to integrate LabVIEW into an existing control system. I
have yet to see anything good examples of this though.
I am wondering if anyone out there has used LabVIEW as a build on to
an existing control system using mainstream PLCs such as GE 90-30s or
VIPA (Siemens) or AB.
Then were you able to remove out the standard ladder logic program and
use the PLC as a central control for the I/O and thus have LabVIEW do
the thinking, be it in a PC or an embedded controller.