FB Fault - Sinec L2

[petrcele]

Dear All,
We have elevator system with Simatic S5 6ES5 095-8MA02 and would like to replace CPU with model 6ES5 095-8MB02 which we have on stock.
However Model 6ES5 095-8MB02 have connection for Sinec L2 compare to one that we have on installation.

In our installation(elevator) we don't use Sinec L2 connector/communication.

We have downloaded same program in spare unit (6ES5 095-8MB02) but BF led is constantly ON.
I can assume that 6ES5 095-8MB02 have some internal setting and is looking for Sinec L2 what we don’t have (we don’t need).
I have also tried to perform some overall reset as follows :
- switch on PLC supply
- Stop/Run several times
- taken out old battery during PLC is on and in Stop
- power off PLC for about 10 minutes
- power on PLC
- installed new battery
- download elevator program
BUT PROBLEM STILL SAME "BF is ON".

What can we do ?
1. Can I switch off Sinec L2 somehow ?
2. Is our downloaded elevator program going to work if BF led is constantly ON (fyg we don't use Sinec L2 connection). In case PLC will work I don’t mind if BF is always ON, but I am not sure if it will go in RUN if BF is always ON.

Br, David Petrc

[Answers to FAQs]

read about config db1
all setting inside