High score reward on the English translation of PLC 30

1. PLC programmable logic controller refers to a new type of industrial control device based on computer technology. In 1987, the International Electrical Commission (IEC) issued a draft PLC standard that defined PLC as follows:

A PLC is an electronic device designed for digital operation in an industrial environment. It uses programmable memory to store instructions for performing operations such as logical operations, sequential operations, timing, counting and arithmetic operations, and can control various types of machinery or production processes through digital or analog inputs and outputs. Both the PLC and its related peripherals should be designed according to the principle that it is easy to form a whole with the industrial control system and easily expand its functions. ”

program logical control

Programmable logic controllers.

In an industrial control interpretive period, a certain rule language on the computer is written into the PLC, and the PLC interprets and acts.

PLC control system, programmable logic controller, translated as programmable logic controller, is an electronic device designed for digital operation in industrial production.

The main components of PLC.

1. ** Processing unit: receive and store the user program and data typed from the programmer according to the function given by the PLC controller system program; Check the status of power supplies, memory, IOs, and alert timers, and diagnose syntax errors in user programs.

2. Memory.

It is divided into system program memory, which stores the memory of the system software, and the memory that stores the application software, called the user program memory.

3. Power supply. It provides the power required for the operation of the entire PLC, and the PLC controller can be directly connected to the AC grid when the AC voltage fluctuates in the range of +10%.

4. Program input device.

It is responsible for providing the functions used by the operator to input, modify, and monitor the program.

5. Input and output circuits.

It is responsible for receiving signals from external input elements and signals from external output components.

Programmable controller, you go to the Youdao dictionary and enter it and it comes out.

Programmable Logic Controller is used to store programs internally, perform user-oriented instructions such as logic operations, sequence control, timing, counting and arithmetic operations, and control various types of machinery or production processes through digital or analog inputs and outputs. It is the core part of industrial control.

PLC, commonly known as "power line network", the full name of English is PowerlineCommunication, which mainly refers to a communication method that uses power lines to transmit data and voice signals.

PLC is programmablelogic controller, which refers to a new type of industrial control device based on computer technology.

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