Introduction to industrial automation system components and product classification

Introduction to industrial automation system components and product classification

Electrical encyclopedia

Industrial control system refers to the general term for automation technology tools (including automatic measuring instruments and control devices) for measuring and controlling industrial production processes and their electromechanical equipment and process equipment. Industrial automation systems can be classified into software and hardware: automation equipment, instrumentation and measurement equipment, automation software, transmission equipment, computer hardware, communication networks, and so on.

(1) Automation equipment: including industrial devices and equipment such as programmable logic controllers (PLCs), sensors, encoders, man-machine interfaces, switches, circuit breakers, buttons, contactors, relays, etc.

(2) Instrumentation and measuring equipment: including pressure instrumentation, temperature instrumentation, flow instrumentation, level instrumentation, valves and other equipment;

(3) Automation software: including computer-aided design and manufacturing system (CAD/CAM), industrial control software, network application software, database software, data analysis software, etc.

(4) Transmission equipment: including governor, servo system, motion control, power supply system, motor, etc.;

(5) Computer hardware: including embedded computers, industrial computers, industrial control computers, etc.;

(6) Communication network: network switch, video monitoring device, communication connector, bridge, etc.

Industrial automation system products can generally be divided into the following categories:

(1) Programmable controller (PLC): It can be divided into large PLC (input and output points >1024), medium PLC (input and output points 256~1024) and small PLC (input and output points <256 points) according to function and scale. .

(2) Distributed Control System (DCS): Also known as distributed control system, it can be divided into multi-level hierarchical distributed control system, small and medium-sized distributed control system and two-level distributed control system according to function and scale.

(3) Industrial PC: PC that can adapt to the harsh environment of the industry, equipped with various process input and output interface boards to form an industrial computer. In recent years, there have been PCI bus industrial computers.

(4) Embedded computers and OEM products, including PID regulators and controllers

(5) CNC system for mechanical and electrical equipment (CNC, FMS, CAM)

(6) Fieldbus Control System (FCS)