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Change the default port of OPC UA in Twincat3

How-to & Troubleshooting

Last Post by trofimich 10 months ago

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Posts: 1

Weronika

Topic starter

Aug 08, 2025 7:47 am

(@weronika)

New Member

Joined: 11 months ago

[#1397]

Hi,

I’m working on a project where I want to connect two simulated PLCs (TwinCAT 3 and CODESYS) to a SCADA system (Ignition) via OPC UA. I already have a connection between Ignition and CODESYS, and now I want to add a connection between TwinCAT 3 and Ignition.

In CODESYS, I’m using the default port 4840. I think using the same port in TwinCAT as in CODESYS could cause problems. Is it possible to change the default port in TwinCAT 3?

Topic Tags

OPC UA

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Posts: 4

trofimich

Aug 27, 2025 5:36 am

(@trofimich)

Active Member

Joined: 4 years ago

Hi, this is here (look at screenshot)

This post was modified 10 months ago by trofimich

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