Cannot connnect remote (OPCDA) redundant driver

[a.decelis]

Hi, this is a WinCC OA 3.14 P24, Redundant Linux System
OPC DA Drivers needed so redundant remote drivers are to be used.

Remote Drivers Machine1 connects kinda OK to OA Server 1but, Remote Drivers Machine2, does not connect to OA Server2.

I get this error:

Connection error, This manager is already connected or Data is running in emergency / backup / recovery mode or the active data is unreachable.

Well, the Active server is Server1, but what is the point of having redundant remote drivers if one of them can not be started because its connecting to the inactive OA server?

What am I missing?

P.S.
Remote Drivers1
Console driver entry:

Code: Select all

WCCOAopc -num 25 -event oaserver1 -data oaserver1

"config" entry:

Code: Select all

[opc_25]
drvDpName = "_Driver25"
server = "whatever" "drivername"
IOTransitionTimeout = 5

Remote Drivers2
Console driver entry:

Code: Select all

WCCOAopc -num 25 -event oaserver2 -data oaserver2

"config" entry:

Code: Select all

[opc_25_2]
drvDpName = "_Driver25_2"
server = "whatever" "drivername"
IOTransitionTimeout = 5
reduPostfix = "_2"

No data/event entries in any of the remote driver projects' "config" files

Edit: the log in the server2 registered this message:

Code: Select all

WCCILdata (0), date-time, SYS, INFO, 0, ,  Connection from localhost expired; did not receive any init message

[leoknipp]

The same problem was reported to the WinCC OA support team.
Please refer to the answer you will receive from the WinCC OA support. First of all the topology of your system needs to be clarified and where the drivers shall connect to.

In future please use only communication channel for the same topic.

Best Regards
Leopold Knipp
Senior Support Specialist