Elevator system comprising with a safety monitoring system with a master-slave hierarchy

An elevator system including a drive, a car that is operatively connected with the drive and is driven along a path of travel by the drive, a plurality of safety function components for providing safety functions at various positions within the elevator system, and a safety monitoring system for monitoring all the safety function components, the safety monitoring system comprising:

• a plurality of safety monitoring units;
• wherein each of the safety monitoring units has an input interface for reading in data or signals from at least one of the safety function components, and the safety monitoring units are connected with one another via at least one data exchange channel;
• wherein the safety monitoring units are organized in a master-slave hierarchy, wherein one of the safety monitoring units is designed as a master unit, and each of the safety monitoring units other than the master unit is designed as a slave unit;
• and
• at least one of the designated slave units has a data processing unit for processing the data or the signals into control signals, and an output interface for outputting the control signals to at least one of the safety function components assigned to the at least one designated slave unit.