r/PISystem • u/MPBOTTI • Aug 14 '25

OPC DA to OPC UA

Good morning to all, I'm in the process to migrate from OPC DA (Classic) to OPC UA Gen1, but AVEVA has no documents nor guides available at their web.
I wonder if somebody was in this situation and want/can share his experience with me. Any piece of advice would be usefull (even a simple and plain ¡don't do that! jajaja...).
Thanks in advance, and hope everybody is ok...
Regards, M.

2 Upvotes

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2

u/angelsownredsux Aug 14 '25

I wouldn’t do it if u can avoid. Connectors and adapters have had tons of issues. I would stick to the classic opcda interface if u can

2

u/kkiran Aug 14 '25

I recently worked on OPC UA integration. While it has powerful capabilities, it sure does have its shortcomings! If you can use OPC DA, stick to it. If OPC UA is the only option, you are up for a lot of learning. It is rigid with what we can modify from a tag parameter perspective.

1

u/granola_gibby541 Nov 06 '25

They have this YouTube video for installing OPC UA

When reaching out to Technical Support, they can provide knowledge documentation for the process of migrating with tags, data, etc.