Hi PES,
HERE YA GO...

Schindler 330a security code feature

try placing the car at the bottom floor . Open the door. Then place the car on in car inspection.
Turn on the BAC program switch in the COP.
Hold the secured floor car call for 5 seconds.
the car should fire the chime as acknowledgement
Then turn of the program switch this should delete current code for that floor.
repeat for all other secured floors to delete all codes.

If you want to change the code to a different sequence code.
Hit the new code for that car call after the chime chirps back.
For new code hit a button every 2 seconds for the new code to take.
repeat for each floor
Then turn off the program switch.
test the new code
let me know how it works out