Read/write OPC DA server with SAP EWM

Dear Experts,

I would like to read and write "tags" (data) from a OPC DA server via SAP EWM.

I have not work with this kind of connection before.

I am analyzing the options below but before I start I would like you to advise me:

1) SAP ODA with "SAP ODA connector"

2) PCo(Plant Connectivity)

3) PCo(Plant Connectivity) with "SAP ODA connector"

4) Others

Which would be the best option?

Thank you in advance

Sincerely, Iban Ariz