PLC control cabinet is an integrated control device with data acquisition and transmission, automatic control, interlock protection and other functions. It has compact structure, stable work and complete functions. It can be combined according to the actual control gauge size, which can realize single cabinet automatic control, and can also realize multi-cabinet distribution (DSC) through industrial Ethernet or industrial field bus network. PLC control cabinet can adapt to various sizes of industrial automation control occasions.

1. Overview

PLC control cabinet is an integrated control device with data acquisition and transmission, automatic control, interlock protection and other functions. It has compact structure, stable work and complete functions. It can be combined according to the actual control gauge size, which can realize single cabinet automatic control, and can also realize multi-cabinet distribution (DSC) through industrial Ethernet or industrial field bus network. PLC control cabinet can adapt to various sizes of industrial automation control occasions.

2. Scope of Use and Purpose

PLC control cabinet is widely used in metallurgy, petroleum, chemical industry, building materials, machinery manufacturing, electric power, automobile, light industry, environmental protection, culture and entertainment and other industries. With the continuous improvement of PLC performance price ratio, its application field is expanding. From the application type, the application of PLC can be summarized as follows:

1. Switch logic control: the use of PLC's most basic logic operation, timing, counting and other functions to achieve logic control, can replace the traditional relay control, for single machine control, multi-machine group control, production automatic line control, such as: machine tools, injection molding machines, printing machinery, assembly lines, electroplating lines and elevator control. This is the most basic application of PLC, PLC is the most widely used areas.

2. Motion control: Most PLCs have single-axis or multi-axis position control modules that drag stepper motors or servo motors. This function is widely used in various mechanical equipment, such as various machine tools, assembly machinery, robots and other motion control.

3. Process control: Large and medium-sized PLC has multi-channel analog I/O module and PID control function, and some small PLC also has analog input and output. Therefore, PLC can realize analog control, and PLC with PID control function can form a closed-loop control for process control. This function has been widely used in boilers, reactors, water treatment, brewing, and closed-loop position control and speed control.

4. Data processing: modern PLC has mathematical operations, data transmission, conversion, sorting and look-up tables and other functions, data collection, analysis and processing, at the same time, these data can be transmitted to other intelligent devices through the communication interface, such as computer numerical control (CNC) equipment, processing.

5. Communication networking: PLC communication includes communication between PLC and PLC, PLC and upper computer, PLC and other intelligent equipment. PLC system and general-purpose computer can be connected directly or through communication processing unit and communication conversion unit to form a network to realize information exchange, and can form a multi-level distributed control system of "centralized management and decentralized control" to meet the needs of factory automation (FA) system development.

3. Model Meaning

4. performance indicators

The device is designed to meet the following criteria

Factory assembly of IEC-439 low-voltage switches and control equipment

IEC-801 electromagnetic compatibility of metering and control equipment for industrial production

GB 4720-84 Low-voltage electrical electrical control equipment

HG/T20700-2000 GA Programmable Controller System Design Specifications

HG/T20507-2000 Automation Instrument Selection Regulations

and other applicable standards

5. product features

PLC = Programmable Logic Controller, programmable logic controller, a digital computing operation of electronic systems, designed for applications in industrial environments. It uses a class of programmable memory for its internal storage program, the implementation of logic operations, sequence control, timing, counting and arithmetic operations and other user-oriented instructions, and through digital or analog input/output control of various types of machinery or production process. It is the core part of industrial control.

PLC control cabinet is an integrated control device with data acquisition and transmission, automatic control, interlock protection and other functions. It has compact structure, stable work and complete functions. It can be combined according to the actual control gauge size, which can realize single cabinet automatic control, and can also realize multi-cabinet distribution (DSC) through industrial Ethernet or industrial field bus network. PLC control cabinet can adapt to various sizes of industrial automation control occasions.

PLC control cabinet is widely used in metallurgy, petroleum, chemical industry, building materials, machinery manufacturing, electric power, automobile, light industry, environmental protection, culture and entertainment and other industries. With the continuous improvement of PLC performance price ratio, its application field is expanding.

6. Ordering Instructions

The ordering contract includes the following:

1. The full model of the product includes the main circuit scheme number and the auxiliary circuit scheme number;

2. Main circuit system combination sequence diagram;

3. Electrical schematic diagram of auxiliary circuit;

4. List of components in the cabinet (PLC brand/series);

5. PLC program, control logic point, communication protocol signal transmission parameters, etc;

Other special requirements inconsistent with the normal use of the product.