Why cant i see the opc servers on the computer where labview is running?

[Daniel Gaksch]

Hello,

i have 2 Computers in a network. On both computers is installed the NAPopc Server. On the computer where Labview is running, i can not

see the OPC Server wenn i go to ->my computer->new I/O Server-> OPC Client. The box of registered OPC servers is empty.

When i choose the network connection, i can see the OPC Server on my other computer.

Can somebody tell me why? I want to use only on computer for my project...

Thanx, Daniel

[BerndF]

Hi Daniel,

in your post you're saying that you have the "NAPopc-Server" installed. Did you mean the NI-OPC-Server? As you can see in the screenshot attached you should be able to see any registered OPC server that is registered properly, no matter if it's installed on your local host or elsewhere.

You mentioned that you can see the OPC server on the other computer, so you should be able to see the OPC-server on that machine when you choose the settings-tab and select "localhost" as machine. Is that right?

For further troubleshooting tips look here and here  

Regards,

Bernd 

[Daniel Gaksch]

Hello Bernd,

thanks for your answer. My OPC Server is the NAPopc (www.icpdas.com) - today i try the same project on a other Computer and there it works.

The Window (what you show in your jpg) is empty at my machine... There is NO Server to choose 😞

I check the firewall and there is no problem.....

Greetings, Daniel

[BerndF]

Hi Daniel,

hard to say what might be the problem, it seem that the third party OPC server you have installed is not registered properly. A re-installation might solve the problem.

Regards,

Bernd

[Daniel Gaksch]

Hello Bernd, thanks or your answer. Now uninstall everything and install again and now i can see my NAPOPC. Thank you very much!

But now there is another problem.

I can connect my Items with Datasocket connection, but it is to slow. It take 1 second between my mouseclick (For an boolean tag) to my I/O Card.

I wont use the "shared variables" but i get everytime a servererror after deploying. I try again and again, with another PC but it is allways the same...

Maybe you have an idea??

Greetings, Daniel