Method for function monitoring of an automated conveyor system for maintaining the conveyor system, wherein the conveyor system has at least one conveyor path which comprises conveyor devices, wherein the at least one conveyor path comprises motor rollers (5, 6) as conveyor devices, wherein the motor rollers (5, 6) which the conveyor path comprises are provided with sensors (11, 12) and actuators (7, 8) which are used for controlling the movement of the motor rollers (5, 6), wherein the sensors (11, 12) and actuators (7, 8) of the motor rollers (5, 6) are coordinated by means of a plurality of control devices, wherein the control devices comprise decentralised control modules, wherein for function monitoring of the conveyor system conveyor device states of the motor rollers (5, 6) are determined, wherein sensor and/or actuator data of hardware which is required for a functionality of the motor rollers (5, 6) are scanned, that is to say, by the sensors (11, 12) and/or actuators (7, 8) which serve to control the movement of the motor rollers (5, 6), wherein the sensor and/or actuator data are detected by the decentralised control modules in a manner dependent on load and wherein system parameter data which are derived from the sensor and/or actuator data are provided by the decentralised control modules, wherein the system parameter data of the motor rollers (5, 6) comprise information items relating to the duration of operation, switching cycles and/or power consumption of the motor rollers (5, 6), wherein the system parameter data and predeterminable process parameter data in order to determine the conveyor device states of the motor rollers (5, 6) are transmitted to a central evaluation unit, wherein the process parameter data are scanned from a storage management system, a material flow processor and/or a central control device, wherein the central evaluation unit establishes the conveyor device states of the motor rollers (5, 6) based on the system parameter data received and process parameter data by means of an analysis function, wherein, depending on an analysis result calculated by the analysis function, a predeterminable maintenance measure is introduced. wherein the conveyor system has at least one conveyor path which comprises conveyor devices, wherein the at least one conveyor path comprises motor rollers (5, 6) as conveyor devices, wherein the motor rollers (5, 6) which the conveyor path comprises are provided with sensors (11, 12) and actuators (7, 8) which are used for controlling the movement of the motor rollers (5, 6), wherein the sensors (11, 12) and actuators (7, 8) of the motor rollers (5, 6) are coordinated by means of a plurality of control devices, wherein the control devices comprise decentralised control modules, wherein for function monitoring of the conveyor system conveyor device states of the motor rollers (5, 6) are determined, wherein sensor and/or actuator data of hardware which is required for a functionality of the motor rollers (5, 6) are scanned, that is to say, by the sensors (11, 12) and/or actuators (7, 8) which serve to control the movement of the motor rollers (5, 6), wherein the sensor and/or actuator data are detected by the decentralised control modules in a manner dependent on load and wherein system parameter data which are derived from the sensor and/or actuator data are provided by the decentralised control modules, wherein the system parameter data of the motor rollers (5, 6) comprise information items relating to the duration of operation, switching cycles and/or power consumption of the motor rollers (5, 6), wherein the system parameter data and predeterminable process parameter data in order to determine the conveyor device states of the motor rollers (5, 6) are transmitted to a central evaluation unit, wherein the process parameter data are scanned from a storage management system, a material flow processor and/or a central control device, wherein the central evaluation unit establishes the conveyor device states of the motor rollers (5, 6) based on the system parameter data received and process parameter data by means of an analysis function, wherein, depending on an analysis result calculated by the analysis function, a predeterminable maintenance measure is introduced.