Distributed control system and distributed control method

Abstract

The invention discloses a distributed control system and a distributed control method. The system comprises a device layer, a monitoring layer and a management layer. The device layer comprises PLC (programmable logic controller) monitoring modules and data acquisition modules arranged in each plant, and the PLC monitoring modules and the data acquisition modules are all connected with multiple devices in the plants. The monitoring layer comprises monitoring terminals, and the PLC monitoring modules and the data acquisition modules in each plant are all connected with the corresponding monitoring terminal. The management layer comprises multiple management terminal computers, a router and a data center, each management terminal computer and the data center are respectively connected with the router through a network, and the router is connected with each monitoring terminal through the Ethernet. Interaction between field monitoring personnel and the devices is realized by adopting a MiniHMI human-computer interface and combining with HDS configuration software, the field monitoring personnel can set working parameters, warning conditions and information inquiry, feed back important information to the management layer in real time and check device running data in real time, control of a product production method is completed through recipe management, and production accident caused by man-made misoperation is avoided.

Description

technical field [0001] The invention relates to a control system in a product manufacturing process in a production plant, in particular to a distributed control system and method. Background technique [0002] Distributed control system (DCS system) will be introduced in system engineering design, equipment complete sets and some supporting products manufacturing. Since most DCS systems need to set working parameters and query the operating status, and the monitoring site has many types of parameters, complex logic functions and control functions, it is difficult to use simple monitoring equipment to meet the monitoring needs; When setting working parameters, etc., the skill requirements of operators are also high. The factory often needs long-term training to make the newly entered staff proficient in mastering the operation skills. The industrial control site is unusual, and small operational mistakes can lead to serious consequences and huge losses. Even old employees ...

AI Technical Summary

Problems solved by technology

Since most DCS systems need to set working parameters and query operating status, and there are many types of parameters, logic functions and control functions in the monitoring site, it is difficult to meet the monitoring requirements with simple monitoring equipment; When setting working parameters, etc., the requirements for the skills of the operators are also high, and factories often need long-term training, so that the new staff can master the operation skills proficiently

The industrial control site is unusual, a small operation error may lead to serious consequences, resulting in huge losses

Even old employees with many years of experience can hardly avoid making mistakes

Images