Connect Java client using RPC-XML to passive node in Redundant System?

[vedadramovic]

Hello,

We have hot swap redundant system - one active and one passive server.
We use java client to establish connection between our equipment and WinCC OA.
This java client connects to Wincc OA using XMP RPC included in Control Manager (script).
It is running on the same server (hardware) as WinCC OA server.

To make it proper redundancy, as we have two WinCC OA servers, we want to run in parallel two java clients - one for each WinCc OA server.
The problem is that passive WinCc OA server refuses connection to Control Manager.

Is there any way to allow XMP RPC connection to passive server?

We need this so WinCC OA can calculate active connections and based on that decide which server should be active.

Best regards,
Vedad

[Gertjan van Schijndel]

With the control function 'httpRunPassive(bool)' you can specify it the passive server should accept clients (true) or redirect them to the active server (false).

[vedadramovic]

Thank you very much for a fast help.