Ignition OPC UA Server Redundancy (Modbus TCP)

Like the attached file, I want to redundancy

If possible, please tell me how to do it.

As far as I know, Device has no redundancy.
But you can create duplicate tags and choose which set of values to use ,based on the connection state.

How should I do that?

can you tell me?

Here is a rough example. Get the device state and use it to build the real tag's path.
Using UDT will help a lot.
New Tag expression

State tag

Thanks for letting me know

Another solution is to use 2 opc tag and a reference tag with the sourceTagPath according to the device connected.

1 Like

Yes, that's better.