DCS, also known as distributed control system, is a complex industrial system used for centralized control or classified parallel control of production process. It belongs to a comprehensive equipment control device. Next, Zhejiang University central control DCS card manufacturer will analyze the workflow of DCS system.
With the continuous improvement of modern large-scale industrial production automation, the requirements for the system in the production process are becoming more and more complex. At this time, an industrial system that can carry out parallel centralized control is needed to take charge of the overall situation, so DCS came into being. It can combine the communication network with the automatic control system and improve the efficiency of industrial production at a high level. The classic DCS system is generally composed of three parts: centralized management system, distributed control device and communication network connection module.
DCs can use configuration software to set and control hardware and program modules according to the actual process control requirements, such as selecting control circuit, control scheme and generating trend screen after configuration. The DC will generate a series of configuration files before startup, which can be loaded into the process control unit and operator station according to various file properties before the system runs. Subsequently, the process control unit finds the corresponding control algorithm from the function module library solidified in EPROM, and starts the process according to the content of the configuration information file.
The DCS control system can use redundant control units to ensure the stability of the overall system, which can provide the function of switching to the standby module without interference in the event of a major failure of the system, and ensure that the system operation state is not lost.
DCS control system usually has a complete system database. Each link in the database system provides real-time reference to relevant data, and flexibly and conveniently supports other links. At the same time, in the PLC configuration equipment of DCS, each link has a corresponding data link, which can be applied in real time during dynamic retrieval to ensure the normal operation of the system.
That's all for the workflow analysis of DCS system. I hope the above explanation can help you. For more relevant content, please come to our website http://www.sdjkyqyb.com Consult and understand.