Once all the units have been installed, the installer needs to configure the system. This is done under Win98/Win2000/Win XP using LCN-Pro Software or the DOS-operated program LCN-P. Each unit receives information about all attached sensors and peripheral equipment, ID-assignment, and of course the necessary logic control which is stored in the button function tables. Configuration for modules and system are saved in files. Thus system can be reprogrammed with few clicks, in case a module is replaced for whatever reason.