Autonomy and coordination of DCS systems - Solutions - Huaqiang Electronic Network

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Each component of the dcs control system is a separate autonomous system. They each perform their own functions, are related to each other, exchange data and information, and restrict various conditions to work under the coordination of the system.
In the distributed control system, the distributed process control device is an autonomous system that performs functions such as data acquisition, signal processing, calculation, and data output. The operation management device performs functions such as display of data, operation monitoring, and transmission of a manipulation signal. The communication system then performs data communication between the operation management device and the distributed process control device. The various parts of the distributed control system are independent autonomous systems, but they work in coordination with each other in the system.
Since the entire system is a coordinated system, although each component is autonomous, failure of any one part will affect other parts. For example, failure of the operation management device will make it impossible for the operator to know the operation of the process; failure of the communication system will cause data transmission errors; failure of the process control device will prevent the system from working properly. It should be noted that the magnitude of the impact of different component failures on the overall system is different. For this reason, in the selection and system configuration of the distributed control system, it is necessary to consider the important parts to set higher reliability components or necessary redundancy measures.
In the distributed control system, the connotation of dispersion is very extensive. Decentralized databases, decentralized control functions, distributed data display, decentralized communication, decentralized power supply, distributed load, etc., their dispersion is coordinated and dispersed. Therefore, in the decentralization, there are centralized data management, centralized control objectives, centralized display screens, centralized communication management, etc., for coordination and management. Each of the decentralized autonomous systems is dispersed under the unified centralized management and coordination.