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PROMOTIC FORUM • View topic - OPC connection problem

OPC connection problem

This is the main technical forum for discussing problems that were encountered by users while developing PROMOTIC applications, and their possible solutions.

OPC connection problem

Postby pavlos77 » Thu 20. Mar 2025 11:42:09

I have one OPC UA connection but some times if there is no communication the system stops trying to connect.
And then i have to stop and start again the runtime.
How i can overcome this problem?
e.g. Lets say with a timer and the quality of a tag and then what?
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pavlos77
 
Posts: 5
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Re: OPC connection problem

Postby Petr Návrat » Mon 24. Mar 2025 10:40:50

Please tell me which version of Promotic you are working with.
Petr Návrat
navrat@microsys.cz
Petr Návrat
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Re: OPC connection problem

Postby pavlos77 » Thu 03. Apr 2025 12:16:01

Version: Promotic9.0.18.0 (05.11.2021)

Also for now i used a timer every 5 sec with below code and it seems ok but i don;t know if it is the correct way.

if (pMe.Pm("../Data/#vars/Thoughput").Quality < 192)
{
pMe.Pm("../Comm").ClosePort()
}
pavlos77
 
Posts: 5
Joined: Thu 10. Nov 2022 13:13:50

Re: OPC connection problem

Postby Petr Návrat » Mon 07. Apr 2025 7:21:07

Yes, you can solve it with a timer like this.
But it is better if you take the new version Pm9.0.31 where the problem will probably be solved.
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