PLC（プログラマブルロジックコントローラー）は、コンピューターテクノ

PLC (Programmable Logic Controller) is a programmable controller that refers to a new industrial control device based on computer technology. In the 1987 draft of the PLC standard issued by the International Electrotechnical Commission IEC (International Electrotechnical Commission), PLC is defined as: PLCs are electronic devices designed specifically for applications in industrial environments. Programmable memory can be used to store internal instructions for performing logical, sequential, timing, count, and arithmetic operations, and control various types of inputs via digital or analog inputs and outputs. Mechanical or production process. PLCs and related peripherals must be designed according to the principle that they are easy to form and expand in functionality in industrial control systems [2-3].<BR>Development history: Digital Equipment Corporation (DEC) in the United States developed the world's first programmable logic controller in 1969, and over 30 years of development and practice, its function and performance have improved significantly. From the original use of logic control to the field of motion control and process control. Programmable logic controllers are also called programmable controllers (PCs), and personal computers are also called PCs, so they are called PLCs to avoid confusion. In 1987, the third draft of the Programmable Controller Standard, promulgated by the International Electrotechnical Commission, defined programmable controllers as: Programmable controllers are electronic systems for digital operation operation designed for industrial environment applications. Controls various machines or manufacturing via digital and analog inputs / outputs using programmable memory used to store instructions for performing logical operations, sequence control, timing, counting, and arithmetic operations. I will. To process. Programmable controllers and their associated external equipment should be designed according to the principles of easy integration with industrial control systems and easy extension of their functionality [4].

A programmable logic controller (PLC) is a programmable controller that refers to a new industrial control device based on computer technology. In the 1987 draft of plc standards issued by the International Electrical Standards Council (IEC) ( International ElectricIty Commission), PLC is defined as follows: PLC is an electronic device specifically designed for applications in industrial environments. You can use programmable memory to store internal instructions for performing logical, sequential, timing, counting, and arithmetic operations, and to control different types of inputs through digital or analog inputs and outputs. Mechanical or production process. PLC and related peripherals should be designed in accordance with the principle that industrial control systems are easy to form the whole and extend their capabilities[2-3].<BR>History of development: After more than 30 years of development and practice since Dec (Digital Equipment Corporation) in the United States developed the world's first programmable logic controller in 1969, its functionality and performance has improved significantly. From the original use of logical control to the field of motion control and process control. Programmable logic controllers are also known as programmable controllers (PCs) and pCs are also known as PCs, so they are called PLC to avoid confusion. In 1987, the third draft of the programmable controller standard promulgated by the International Electrical Standards Conference defined a programmable controller as follows: Programmable controllers are electronic systems for digital operations designed for industrial environment applications. Use programmable memory used to store instructions for performing logical, sequence control, timing, counting, and arithmetic operations to control various machines or manufacturing through digital and analog input/output. To process. Programmable controllers and related external equipment must be designed according to the principles of easy integration with industrial control systems and the easy expansion of their functions[4].

PLC（可编程逻辑控制器）是指基于计算机技术的新工业用控制设备的可编程控制器。在国际电气标准会议IEC（国际电气委员会）发行的PLC标准的1987年草案中，PLC定义如下：PLC是专门为工业环境应用而设计的电子设备。使用可编程存储器，可存储用于执行逻辑运算、顺序运算、时序、计数及算术运算的内部指令，并可通过数字或模拟输入及输出控制各种类型的输入。机械或生产流程PLC及相关周边设备必须按照产业用控制系统容易形成整体、容易扩展功能的原则进行设计。<BR>开发历史：美国DEC（Digital Equipment Corporation）自1969年开发出世界首个可编程逻辑控制器以来，经过30多年的开发和实践，其功能和性能大幅度提高。从逻辑控制的原始使用到运动控制和过程控制的领域。可编程逻辑控制器也被称为可编程控制器（PC），电脑也被称为PC，为了避免混乱，被称为PLC。1987年，国际电气标准会议公布的可编程控制器标准的第三个草图，将可编程控制器定义为：可编程控制器是面向工业环境应用而设计的用于数字操作的电子系统。使用用于存储用于执行逻辑运算、序列控制、定时、计数和算术运算的指令的可编程存储器，通过数字和模拟输入/输出控制各种机器或制造。处理可编程控制器及其相关外部设备必须按照与工业控制系统的简单集成及其功能容易扩展的原则进行设计[4]。<BR>