MII WinCC integration

[Former Member]

Dear all,

We want to get current and historical data from WinCC.

We have MII server.

We have also WinCC server. WinCC OPC server is installed on WinCC servers.

There is firewall between WinCC and MII servers.

We installed UDS on MII server.

Questions:

1) Shoul we install UDS on MII server or WinCC server? If both is possible, which one is effective?

2) Can we read real time and historical data by only using OPC server adn UDS, without installing 'WinCC connectivity pack".

Why should I use this connectivity pack, if they use OPC standarts?

Kind regards,

Hamza.

[erik_schrampf]

Hamza,

1. It is always better if you can to install the UDS on the same machine as the OPC Server you are connecting to. This is more efficent as it will cause less traffic over http. Also sometimes problem occur with DCOM issues and since this would be a local install, this would be alleviated. But if not allowed then it can be installed with the MII server or even on a seperate Windows box. Note the UDS is Windows based so it must be installed on a Windows OS.

2. I am not familiar with this and would have to test in order to see if it is needed. Unfortunately we do not have a WinCC system to test this against. From reading some of the documentation it seems like this may be needed to get the OPC HDA access if needed.