Read/write OPC DA server with SAP

[Former Member]

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

[Private_Member_73513]

Hello Iban.

I'm trying to configure an SAP ODA. But without success.

SAPODA already intalled on the same machine OPC SERVER.

In transaction SM59 , as I run the connectin test I get the error:

"DETAIL: TP 172.17.21.203.sapoda not registered"

You has success on your connection?

Thanks.

[Former Member]

Is it necessary SAP Gateway in all the cases?

[Former Member]

You could certainly use SAP MII as well.  It is optimized for these types of use cases.

[Former Member]

Thanks Rick.
We would like to control a PLC(Programmable Logic Controller) and its movements via EWM.

I am analyzing the different PCo agents: OPC DA and Socket

The first one(POC DA) requires an OPC server to connect the PLC.

The second(socket) one seems to be direct connection with PLC.

As shows the link figure
http://help.sap.com/saphelp_pco22/helpdata/en/46/a00344d44852b7e10000000a155369/content.htm
MII or EWM could be used and our requirement is to use EWM.