Just for information ;
I can not find proper solution for this. I just changed second floors card with first floor card and it works well there.
I gonna order new ucp card since there is no fault on cabling and also bus system.
Thanks anyway.

It is more complicated and more detailed than I imagine. Thanks for all who made this forum so strong and useful.

Hello , I am working on CMC4+ dublex elevator with three floors. One of the elevator Landing call button at bottom floor is not working properly. On the board behind the wall (UCP+) there is one Red led and it is blinking 4 times. As I understands from manual (since it is Spanish) it means that &quo...

Hello to everyone. I just found this Forum when I am searching information related with Thyssen CMC4+. It is very useful and nice to see people helping each others. I am sorry but I cando not now Spanish. By the way My name is Baha and I am From Turkey. I am 47 years old and working in this industry...