Sum stream for actual states, and control signals of a distributed control system

Abstract

Sensors (1) of a control system detect cyclical actual states (Z) of a technical industrial process (4) and transmit same to a common central unit (3) of the control system via a first protected connection (6) of a first open communication network (5), said connection being common to the sensors (1). Thus, each sensor (1) transmits the actual states (Z) detected by the sensor to the central unit (3) once within a specified time window (T). The central unit (3) ascertains cyclical control signals (C) for the technical industrial process (4) while taking into consideration the actual states (Z)transmitted to the central unit and transmits said control signals to multiple actuators (2) of the control system via a second protected connection (9) of a second open communication network (8), said connection being common to the actuators (2). The central unit (3) thereby transmits the control signals (C) determined for the respective actuator (2) to each actuator (2) once within the specifiedtime window (T). The actuators (2) act cyclically on the technical industrial process (4) in a manner corresponding to the control signals (C) transmitted to the actuators. Each sensor (1) is assigned a respective transmitter-side sub-region (19), within which the respective sensor (19) supplies the actual state (Z) detected by said sensor to the first open communication network (5), within the time window (T). The transmitted actual states (Z) arrive within a respective receiver-side sub-region (20) of the time window (T), said sub-region corresponding to the respective transmitter-side sub-region (19), in the central unit (3). The transmitter-side sub-regions (19) of the sensors (1) are determined such that the receiver-side sub-regions (20) are disjointed relative to one another.

Description

technical field [0001] The invention relates to a control method of an industrial technical process, [0002] - where the sensors of the control system periodically detect the actual state of the industrial technical process and transmit the actual state to the common central unit of the control system, so that each sensor transmits the actual state detected by the sensor once within a predetermined time window transmitted to the common central unit; [0003] - where the common central unit periodically derives a control signal for the industrial technical process taking into account the actual state transmitted to the common central unit and transmits the control signal to the actuators of the control system so that the common central unit will The control signal determined for the corresponding actuator is transmitted to each actuator once within a predetermined time window; [0004] - wherein the actuator acts periodically on the industrial technical process in accordance...

AI Technical Summary

Problems solved by technology

However, it's not practical to just set up a flow between two components as it does by default

Images