Redundancy problems

[andrea.spinelli]

Hi guys,

I have a strange problem in a redundant system.
The configuration is : 2 WINCC OA server (3.17 P016) connected to 3 S7-1515 and 3 UIs.
Normally the server 1 is the active and preferred server and the server 2 is the partner.(pic7.png)
The DPs in _S7_PlusConnecction are correctly configurated for each plc. (see pic1.png in the attachment) and also the console is configured correctly with the redundancy manger (pic2.png).

This happens to me : both server is ON (pic3.png) with server 1 the preferred ancd active.If I change the status of the redundancy by the system overview and I change the active server on server 2 (by switching the preferred server on server 2), all is ok.
But when I turn off manually the server 1 by the console (stopping the project), server 2 became the active server connected correctly to the Event Manager (pic.4) but only the first PLC remains connected (pic5.png).
The order S7 plus connection are disconnected (pic6.png) but if I deactivate and activate manually the connection (by the check "Estabilish connection") it works good and the connection is restored.

I do not know where can be the problem.

[leoknipp]

In your posting we cannot see any of the mentioned pictures.
Please check if log messages are reported if the connection to the PLC is lost or not transferring data.

Best Regards
Leopold Knipp
Senior Support Specialist

[andrea.spinelli]

I think there is some problems on the form for the attachments.

[leoknipp]

I do not know if there is a problem with attachments in the WinCC OA Portal.
Probably you can copy the files to a web space and add a link to your posting.

Best Regards
Leopold Knipp
Senior Support Specialist