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I found another library that has it.

Yes, both client and server are simulated on the same PC. I can Wireshark, but I don't want to spend the time to do that right now. Since I'm evaluating solutions for my application, I will try using Keba's K_Network library. It has tcp wrappers as well, but the data buffer handling must be coded, so it's a little more work. Since my last reply, I have a server up and running that I can telnet to and it seems robust, so for the moment I will continue in that direction.

-Bill

I am able to make a client/server connection and pass a NET_VAR_BUFFER. When the client makes NET_VAR_CONTROL.ACTIVATE := FALSE, a transition back to TRUE does not reestablish the connection. The only way I can make the connection again is to reboot the PLC simulator.

I'm running Codesys on Keba using their simulator for a PLC.

Cheers!

Bill

I only see a YAHOO_WEATHER_DEMO. Is there something that I need to "unhide"?

I'm having trouble locating demo programs according to these instructions:

The demo programs are in network.lib in the folder "DEMO" included. If
they are used, the needed programs should be copied to your project and
then can be adjusted to your needs. Some modules require the disclosure
of its own specifc parameters so that they are fully functional.
The Codesys and Beckhof library demo programs are hidden because
they would otherwise occupy resources needlessly.

Thanks for the speedy reply!  :)

Do you have any insight as to how difficult that might be to do (single server instance?) and if it would be a worthwhile project (many would find useful?)

Hallo,

Sorry for assuming someone can help me in English, but I don't have Duetsch, and I would rather not have some broken translator mess up my question.

My OSCAT NET_VAR_CONTROL question is if it is possible for multiple NET_VAR_CONTROL clients to connect and share data with a single NET_VAR_CONTROL server? Or would I need to have a NET_VAR_CONTROL server for each client?

Thanks,

Bill