DUC means data under central and can be compared to a robust and simple computer unit whose task is to control, for example, a ventilation unit or a circulation pump.
A computer substation can be likened to the brain or backbone of a building automation system. It collects data from sensors and then sends signals to control the building's systems, such as ventilation, heating and lighting, with the aim of optimizing energy consumption and indoor climate. DUC systems are programmable and have evolved from control systems from the 1970s, but today's systems are more similar to industrial PLC systems.
