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What do upper and lower computers mean?

1. An upper computer refers to a computer or embedded system that directly completes equipment operations through human controlWhat does PC represent in automation, and the lower computer refers to a device or system that accepts control instructions from the upper computer through a communication protocol to perform device control operations. The specific explanation of the upper computer is as followsWhat does PC represent in automation: DefinitionWhat does PC represent in automation: Upper computers are usually devices that people often contact and directly operateWhat does PC represent in automation, such as an ordinary personal computer.

2. Upper computer refers to a computer that can directly issue control commands. It is usually a PC. Various signal changes (hydraulic pressure, water level, temperature, etc.) are displayed on the screen. Lower computer (English lower computer) refers to a computer that directly controls the equipment to obtain equipment status, generally a PLC/MCU.

3. Lower machine: Generally refers to PLC, single chip microcomputer, slave computer or lower computer, etc. It is the controlled and served person. It directly controls the equipment and obtains the equipment status, and reads the equipment status data from time to time (usually analog), converts it into digital signals and feeds it back to the upper computer. Upper and lower machines can also be understood as the relationship between host and slave machines, but the two can be converted.

Are PC control and PLC control the same? Are both programmable?

1. Are PC control and PLC control the same? Are both programmable? It's the same. In the past,"programmable controller" was abbreviated as PC. Later, in order to distinguish it from "personal computers" PC computers,"programmable controller" was abbreviated as PLC.

2. PC refers to personal computer, which is well known. PLC stands for programmable logic controller. PMC is an integrated PLC in a CNC system. Learning PLC is not difficult, especially for those who have mastered the basics of assembly language and digital circuits. Generally, they can quickly get started and use PLCs skillfully.

3. The predecessor of PC was not PLC, but two completely different technical concepts. PLC is a programmable logic controller and belongs to industrial control equipment;PC is a personal computer and belongs to general computing equipment. Core concepts and functional differences PLCs are specifically designed for industrial environments, and the core functions are logic control, sequence control and process control, such as controlling an automated production line or a machine tool.

4. PC now generally refers to personal computers. PC is generally not used as a special controller, but generally plays a monitoring role and is used as an upper computer. PLC can be used as a controller, generally used in industrial fields, and has good anti-interference capabilities. Supporting some industrial networks, PLC refers to off-the-shelf programmable controllers used in industry. There are many brands of PLC, and most of them use Mitsubishi and Siemens. After learning these two, everything else is similar.

5. PLC is the abbreviation for "Programmable Logic Controller", originally abbreviated as PC. In order to avoid confusion with Personal Computer, it is renamed PLC. It is a microcomputer specially designed for industrial automation control in the computer family. It belongs to an electronic system for digital operation.

What does pc mean in automation?

In the Siemens 300What does PC represent in automation, PC, OP, PG, and industrial computer all refer to equipment in industrial automation controlWhat does PC represent in automation, their functions and differences are as follows: PC: PC (Programmable Controller) is a general purpose control computer that can be programmed to implement various control functions, such as logic control, motion control, data processing, etc. PC is usually used as an upper computer and can exchange and control data with other devices through a communication interface.

PC refers to personal computer, which is a widely used type of computer suitable for personal use. NB and NC may have different meanings in different contexts, but in the technical field, they are usually not specific terms. In this context, we can assume that they are part of some technical abbreviations, but due to the lack of specific context, we cannot give a precise explanation.

PLC is a programmable logic controller and belongs to industrial control equipmentWhat does PC represent in automation;PC is a personal computer and belongs to a general purpose computing device. Core concepts and functional differences PLCs are specifically designed for industrial environments, and the core functions are logic control, sequence control and process control, such as controlling an automated production line or a machine tool. It is characterized by high reliability, strong anti-interference ability, and can adapt to harsh industrial sites (such as high temperature, dust, electromagnetic interference).

Detailed meaning: Programmable: Programmable, meaning that its control logic and functions can be changed by writing and modifying programs. Controller: Controller, responsible for receiving input signals, processing them according to preset program logic, and then outputting control signals to drive the actuator.

What do upper and lower computers mean

Upper computer refers to a computer that can directly issue control commands. It is usually a PC. Various signal changes (hydraulic pressure, water level, temperature, etc.) are displayed on the screen. Lower computer (English lower computer) refers to a computer that directly controls the equipment to obtain equipment status, generally a PLC/MCU.

Define upper computer: refers to a computer that can directly issue control commands. It is usually a PC (Personal Computer), host computer, master computer or upper computer. The upper computer screen can display various signal changes, such as hydraulic pressure, water level, temperature, etc.

Lower computer: Generally refers to PLC, single chip microcomputer, slave computer or lower computer, etc. It is the controlled and served person. It directly controls the equipment and obtains the equipment status. It reads the equipment status data (usually analog) from time to time, converts it into digital signals and feeds it back to the upper computer. Upper and lower machines can also be understood as the relationship between host and slave machines, but the two can be converted.

pc's predecessor plc

The predecessor of PC is not PLC, which is two completely different technical concepts. PLC is a programmable logic controller and belongs to industrial control equipment;PC is a personal computer and belongs to general computing equipment. Core concepts and functional differences PLCs are specifically designed for industrial environments, and the core functions are logic control, sequence control and process control, such as controlling an automated production line or a machine tool.

The predecessor of PLC is relay control device. Specifically: Origin background: In 1968, General Motors Company of the United States proposed to replace traditional relay control devices, which was the direct motivation for the birth of PLC. Birth of the first PLC: In 1969, American Digital Equipment Company successfully developed the world's recognized first PLC, namely PDP-14.

3. The control system referred to now mostly refers to a system that uses a computer or microprocessor for intelligent control. In the history of the development of control systems, it is called the third generation control system, represented by PLC and DCS. Since its inception in 70 years, it has developed rapidly in industrial process control such as metallurgy, power, petroleum, chemical industry, and light industry.

4. Miniaturization, networking, PCization and openness are the main directions for the future development of PLC.

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