topic Re: problems with labview and opc in LabVIEW

problems with labview and opc

Maiki — Sat, 01 Mar 2008 13:46:45 GMT

Hi,

I'm using the eval version of Labview 8.5 and I'm trying to connect Labview to a Kepware OPC server. I found a tutorial about how to do it but when I follow the instructions I don't have the option to add an "I/O Server" for then select the OPC server. I want to know if that's because of the eval software and I have to buy it or there's another way to connect Labview to the OPC. I have my PLC Siemens connected to the OPC but not the OPC with Labview.

Thanx for your help

Re: problems with labview and opc

Paul_m6 — Sat, 01 Mar 2008 17:30:09 GMT

Well I never had the eval version but I guess this option should be on it. You have to right clic on "my computer"in your project, and select "New --> I/O Server", If it really doesn't appears then you can try to use data binding in a control (right clic in a control or terminal of the same data type of the variable you want to connect to: Properties/ Data binding/Data socket/DSTP server/select your OPC server/select your variable or address)

Re: problems with labview and opc

JCFC — Fri, 28 Mar 2008 21:54:56 GMT

When you right-click on My Computer>New there doesn´t appear the I/O Server option or it appears but when you click it, the I/O server list appears empty?
The I/O servers appears only if you have the DSC Module Installed. If you don't have it, the I/O servers list appear empty.

JCFC

Re: problems with labview and opc

dpcamargo — Wed, 16 Apr 2008 15:07:30 GMT

Maiki,

The evaluation version os LabView does not offer the possibility of using any I/O or external hardware.

Dario Camargo

NI Brazil

Re: problems with labview and opc

LBD — Sun, 20 Apr 2008 12:07:14 GMT

Hi Maiki or somebody else

I have exactly the same goal. How do I use kepware with labview. I saw your information that, you had an torturioal about how to use Kepware OPC with Labview., Can you pls. send me a link, or tell how to find that torturioal.

Dears Lars

Re: problems with labview and opc

NEDian — Sun, 20 Apr 2008 14:48:56 GMT

Hi Maiki,
        Paul_m is dead right !! Follow the instructions as given by him . (Right click=> Properties=> Data Binding =>Browse(DSTP Server) =>KepwareEX OPC server => Variable name)
        I have used this method successfully.

        Shaheryar

Electronics Engineer

Re: problems with labview and opc

Joachim082 — Sun, 20 Apr 2008 17:55:11 GMT

Hi LBD,

As far as I know you need the DSC Module or the DSC Runtime to use the Kepware OPC-Server. When using Shared Variables it is very important to run the Kepware OPC-Server as a service. If you have further questions, please ask. Notice that the OPC-Server in evaluation mode is only free for 2 hours.

HTH
Joachim

Message Edited by Joachim082 on 04-20-2008 07:55 PM

Re: problems with labview and opc

Maiki — Mon, 21 Apr 2008 03:29:54 GMT

I've done with Data Biding and is working perfectly.

Thanks a lot,

Maiki

Re: problems with labview and opc

saty — Fri, 27 Jun 2008 20:28:18 GMT

I am having the same problem of coneecting with the Kepware OPC.. I dont have the DSC module but i still want to connect.. I tried out the rightclick of the My computer in my new project and clicked on the properties menu.. But I dont see any data sockets. All i see are:

General :
Vi server : config
Vi server : machine access
Vi server : User access
Conditional disable Symbols
Math script : search parts

i have a full development version of labview.. could any one suggest on it..

Thanks

Re: problems with labview and opc

saty — Fri, 27 Jun 2008 21:48:52 GMT

Never mind.. I figured it out.. My bad.. But the data binding works awesome...