When UDS? When PCo?

[Former Member]

Hi all,

we are working on a scenario where we ask the historian about tag info. Initially, we don't need event notification as we will ask the historian for the information. Is this scenario covered by PCo?

We've been trying to set up the data server for testing the Pco but we don't find in the documentation what the server we should choose and it seems that you can only connect PCo to a BLS transaction.

Could you please help us?

Thanks,

Adolfo

[jcgood25 · Accepted solution]

PCo supporting tag query type modes is not presently available in PCo 2.0, this is coming in PCo 2.1 (where you will also find a new PCO Query type available in the WorkBench).

The current version is more of a trigger mechanism like you've seen for triggering an event by calling an associated MII BLS transaction.

For pure historian data queries you can continue to use the UDS's.

[Former Member]

There is no dataserver setup for PCo. You deliver a PCo notification to MII by triggering a BLS transaction.

Chanti.