1P00028G01 What are the characteristics of DCS?
http://www.gkong.com 2010-03-25 09:02 China Industrial control network
DCS, (Distributed Control System) short for distributed control system, the domestic general habit is called distributed control system. DCS is a multi-level computer system composed of process control level and process monitoring level with communication network as the link, integrating computer, communication, display and control 4C technology, its basic idea is decentralized control, centralized operation, hierarchical management, flexible configuration and convenient configuration.
1P00028G01
DCS has the following characteristics:
(1) High reliability Because the DCS system control function is dispersed in each computer, the system structure is fault-tolerant design, so the failure of a computer will not lead to the loss of other functions of the system. In addition, since the tasks undertaken by each computer in the system are relatively simple, special computers with specific structures and software can be used for the functions that need to be realized, so that the reliability of each computer in the system is also improved.
(2) Open DCS adopts open, standardized, modular and serialized design, each computer in the system adopts local area network communication to achieve information transmission, and when it is necessary to change or expand the system function, the new computer can be easily connected to the system communication network or removed from the network, almost without affecting the work of other computers in the system.
(3) 1P00028G01 Flexibility The software and hardware configuration is performed according to different process application objects through the configuration software, that is, to determine the measurement and control signals and the connection relationship between them, select the applicable control law from the control algorithm library, and call various monitoring and alarm screens required by the basic graphics from the graphics library, so as to facilitate the formation of the required control system.
(4) 1P00028G01
Easy to maintain a single function of the small or micro special computer, with the characteristics of simple and convenient maintenance, when a local or a computer failure, can be replaced online without affecting the operation of the entire system, quickly eliminate the fault.
(5) Coordination between workstations through the communication network to transmit a variety of data, the entire system information sharing, coordination work to complete the overall function of the control system and optimize processing.