Second, industrial automation main products

1, industrial automation product composition

350015-106M1081-01 There are many categories of industrial automation products, which can be divided into control layer, drive layer and execution layer according to their functions, among which:

(1) The core products of factory automation include PLC/PC-Based in the control layer, inverter in the drive layer, servo system in the execution layer, CNC, etc.

(2) The core products of process automation include DCS (distributed control system) of the control layer, inverter of the drive layer, and various sensors, instruments, contactors, valves, etc.

2. Introduction of main products of industrial automation

PLC

Definition: A programmable logic controller (PLC) is an electronic system designed specifically for the operation of digital arithmetic in industrial environments. It uses a programmable memory in which the instructions for performing operations such as logical operations, sequence control, timing, counting and arithmetic operations are stored, and various types of mechanical equipment or production processes are controlled through digital or analog input and output.

350015-106M1081-01 PLC is mainly composed of CPU, memory, input/output interface and power supply.

(1) CPU: is the PLC control center, the main task is under the control of the system program, complete logical operations, mathematical operations, coordination of the internal parts of the system, etc.

(2) Memory: PLC is used to store system programs, user programs, logic variables and operational data units.

(3) Input/output interface: also known as I/O interface or I/O module, is the connection between the PLC and peripheral devices. PLC I/O interface can accept the number of input and output signals called PLC I/O points, I/O points is one of the important basis for choosing PLC.