can labview record data through a serial connection from a load cell controller?
I am assembling a system and need to be able to control both a newport
motion controller (already has LV drivers, so I am sure that's all
set) as well as take load data from a Sensotec load cell controller -
the controller uses a serial connection for data transfer. Can I use
labview to readily acquire data from the load cell controller (it's a
sensotec 2000, if that helps)?
If you have the serial protocol that the Sensotec 2000 is using you can
create your driver in labview.
Most of the time is faster to write your own driver than to search for one.
Andr�...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.
...How do you control seperate motors with Labview through a remote control?
Forgive me if I am not typing the question correctly, or if it is a stupid question. I am only fourteen and only started learning about Labview.. I would appreciate all help possible. Thanks
What type of motors are you trying to control? How do you have them/plan to have them connected to your computer? When you say you want to control remotely, do you mean that you don't want them connected to a computer or that you want to communicate remotely through your computer (no cables)? The more information you can give the better help you will receive. Cheers
It would also be helpful to know what version of LabVIEW you are using. It's impressive that your starting to learn LabVIEW at such a young age, it will be challenging but worth it!
Well first off, thanks for asking questions to my questions, it helps me too :) The kind of motors I am trying to control are IFI Robotics Multi-Speed Motor Connect to PWM or RLY port (12 volt).. I am trying to remotely control it wirelessly, through an IFI Robotics Isaac16 EDU Robot Controller with 900MHz Short Range Radio Modem. Hope this Helps..
Oh yeah, and the version of LabView I am using is 8.5
It looks like your controller is designed to be programmed in BASIC. What you will need to do in order to control it with LabVIEW is figure out what the function calls are that will be required to activate your PMW signals etc.&a...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 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.
...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 ...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,
...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.
...When uninstalling Labview I lose control of my network connection
For some strange reason when i uninstall
completely labview and reboot my computer and that i want to access my
network connection i get a message that and unexpected error occured.I
had the student version installed and for a project at school my
teacher lend me is full version of NI motion. Everything was fine till
I decided to remove it. I tried uninstalling a couple of thing, but only labview causes this problem.Thank You in Advance!M.
...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...Can I use LabVIEW to load data directly into system memory? The serial card I'm using isn't supported by NI nor does VISA recognize it. I'm using a Win32 function to read the data from the card
Can I use LabVIEW to load data directly into system memory from a VI? The serial card I'm using isn't supported by NI nor does VISA recognize it. I'm using a Call Library function to read the data from the card and now I want it to go directly to system memory.
The data is being received at 1Mbps.
1.You will most likely crash your system trying to write meg's/sec of
data to system memory. LabVIEW has it's own memory manager and manages
data for you. If you getting data to LabVIEW, I hope for the
processinfg purposes. You didn't menti...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?
...Labview vi to read a Omega CN9 temperature controller
I am trying to get Labview to read the output on a temperature
controller (only need the output, no control is needed) and am having
difficulty with the PC to even pick up the controller on the
Any help would be much appreciated. Thanks!
...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.
...Re: I'd like to control/read INCA with LabView.
You are right in part. I am essentially using the "older" ASAP3 protocol to encode the messages that I am sending to INCA. The VI, however, is communicating with the ASAM-MCD-3MC interface which, at this point, is still compatible with both standards. From what I can tell the ASAM-MCD-3MC standard simply adds functionality to the old ASAP3 standard, and up to this point the simple commands that I am using appear to be identical for either standard. At any rate, the implementation in LabView is the same whether you use ASAP3 or ASAM-MCD-3MC only the physical messages that you send to INCA may vary somewhat.
Thank you for attaching the INCA VIs I think that I will be able to use them for what I am doing, and you may be able to modify them slightly to use ASAM-MCD-3MC. From the attached VI you'll see that I am using the same approach, but using the TCP modules and a slightly more brutish method of hardcoding the packets to be sent. Your VIs will be very usefull in making the process a little more versatile.
A few notes about my VI: I don't know how familiar you are with the ASAM-MCD-3MC 4 INCA interface, but you will have to follow the procedure outlined in the INCA manual for setting up the client and server through the DCOM config. Also, if you are running a firewall you will have to unblock LabView on the client computer and INCA on the server computer. You may have to manually open up port 22222 on both computers as well. Once you have done this, you ...labview 7.1 Events read previous value of control
I am experiment with labview events. I have button that once its value
is change (ie clicked) it would fire an event to do an I2C write to a
The data to be rewriten is in a numeric control. Labview however
writes the previous value in the numeric control rather than the
I've verified this via scope on the I2C signals. Also i've used
probes and break points in labview to see what is going on and it does
confirm that old value is being rewriten. To make things more
interesting it seems the right values are brought to edge of the event
box however the pre...Re: I'd like to control/read INCA with LabView. #2
I think that we have a misunderstanding concerning standards and interfaces. My understanding is that the interface is simply a program that runs together with INCA to listen for and transmit information via a serial or ethernet connection. The interface that I am using is the ASAM-MCD-3MC 4 INCA interface that is available with INCA V5.4 (I am using Hotfix 8). This interface is compatable with either the ASAM-MCD-3MC or ASAP3 standards. The standard is simply the method that you use to encode the data that you wish to send across the connection. Therefore, the implementation in LabView for setting up a TCP connection and sending/receiving data over a TCP connection is the same, and only the format of the data that you send will change depending on the standard that you use. And the standard that you use will depend on how INCA is configured.
I am using the ASAP3 because, at this point in time, it appears that ASAP3 is still the default standard used by INCA. While the new interface is compatable with both standards, all of the documentation for the interface still refers to ASAP3 and the default setting in INCA is set to ASAP3. I think that ETAS has provided the capability of using the ASAM-MCD-3MC standard in order to keep their product current, but that they expect that the majority of users and commercial software packages will still be using ASAP3 for some time. I honestly don't know much about the new ASAM-MCD-3MC standard; it appears to be completely...Communicate between Labview Data Acquisition VI and Matlab antenna control GUI
Ok, here's some background behind what I'm trying to do. I'm operating a radio astronomy synthesis imaging array. It uses a Matlab GUI to control the azimuth and elevation of the antennas in the array, continually updating them to track astronomical objects. I'm using a Labview VI to acquire data because we were unable to get Matlab to synchronously sample on multiple DAQ boards. I'm using NI PCI-6115 boards, by the way. I need to be able to move back and forth between one source (a calibrator) and another source (the object of interest). However, I only want to acquire data when the antennas are on source, so I need some way for the control software in Matlab to be able to tell the data acquisition software in Labview when the antennas have arrived so data can be acquired, and for the Labview software to tell Matlab when it's done acquiring so the antennas can be moved to the other source. I was thinking of having two separate text files for control signals, one for matlab to write to and labview to read from, and the other vice versa. If anyone has any ideas as to how this could work better, I would greatly appreciate it.Thank you very much.Alan Stemmonsalanstem469@yahoo.com
Hi as469, Have you considered using ActiveX? LabVIEW has ActiveX VI's that allow you to do communication with other applications. You would have to check if the other software you are using supports this. ...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
...How to connect with Yokogawa UT 320 E Oven Controller using NI cDAQ and Labview
HI. i am anable to connect the yokogawa UT320 E controller with LabVIEW. Could any one suggest the which communication method should i used?
What have you tried?
The manual located here <a href="http://gscatalogs.us.yokogawa.com/Controllers/Controllers/GreenSeries/GS05D01D02-02E.pdf" target="_blank">http://gscatalogs.us.yokogawa.com/Controllers/Controllers/GreenSeries/GS05D01D02-02E.pdf</a> page 10 shows terminals for a 4-wire RS-485 connection. If you get an RS-232/RS-485 adapter, you should be able to connect it to your PC. Though it says Communication Functions (optional) on page 7. Assuming you have the option, it talks about ModBUS protocol. There are Modbus LabVIEW VI's located on the NI website. This .pdf file isn't the most detailed, perhaps there is a better user manual or more advanced guide to discuss your communications options and protocols.
...Re: Has anyone written LabVIEW serial port drivers for Pacific Scientific Motion Controllers?
Could someone save and post these files in Labview version 6.1?
<a href="http://forums.ni.com/attachments/ni/170/48300/1/Paci_SCi_PC800.vi" target="_blank"><img height="22 alt=Attachment hspace=5 src= http://forums.ni.com/i/global/icon_attachment.gif" width="22" border="0"></a>
<a href="http://forums.ni.com/attachments/ni/170/48300/1/Paci_SCi_PC800.vi" target="_blank"> Paci_SCi_PC800.vi</a> (538 kb)
<a href="http://forums.ni.com/attachments/ni/170/48300/2/Wait_with_Error_In.vi&quo...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...