Analysis And Design Of CGSE-ES Redundant Distributed Control System

CGSE-ES (Cryogenic Ground Supporting Equipment– Electrical System) Redundant Distributed Control System is an important unit of CGSE System. It is for finishing the task of measuring, controlling, monitoring and some communication. Each distributed part of it has used the redundancy design, so it has high stability and reliability. Moreover, as to the software design, try the best to make the programs more reliable, have good precision in measuring and controlling, very real-time and flexible.Analysis and Design of CGSE-ES Redundant Distributed Control System mainly includes: hardware design of the Control System, algorithm design of the data collection and control, Human Machine Interface (HMI) design and communication program design. Hardware design of the Control System: use the distributed structure, that is, Siemens S7-400H PLC serves as the main controller, I/O slave station ET200M serves as the distributed slave station to connect the data and control signals in the field, PC serves as the HMI, and all of them above form a network through Profibus fieldbus. Algorithm design of the data collection and control: develop the corresponding programs through the Siemens software Step7. HMI design: develop the HMI of the Control System through Siemens software WinCC. Communication program design: it includes the OPC communication with WinCC HMI and the Ethernet TCP/IP communication with Communication Interface System.