U-CIF02直流电源全新
PLC是以微处理器为基础,综合了计算机技术、自动控制技术和通信技术,用面向控制面向用户的“自然语言”编程,适应工业,简单易懂、操作方便、可靠性高的新一代通用工业控制装置。PLC是在继电器顺序控制基础上发展起来的以微处理器为核心的通用自动控制装置。
可编程序控制器是一种数字运算操作电子,专为在工业下应用而设计。它采用了可编程序的存储器,用来在其内部存储执行逻辑运算、顺序控制、定时、计数和算术运算等操作指令,并通过数字的、模拟的输入和输出,控制各种类型的机械或生产。可编程序控制器及其有关的设备,都应按易于与工业控制形成一个整体、易于扩充其功能的原则设计。
PLC产品种类繁多,其规格和性能也各不相同。对于PLC,通常根据其结构形式的不同、功能的差异和I/O点数的多少等进行大致分类。
按结构形式分类
根据PLC的结构形式,可将PLC分为整体式和模块式两类。
整体式PLC
整体式PLC是将电源、CPU、I/O接口等部件都集中装在一个机箱内,如图所示。具有结构紧凑、体积小、价格低的特点。小型PLC一般采用这种整体式结构。整体式PLC由不同I/O点数的基本单元(又称主机)和扩展单元组成,基本单元内有CPU、I/O接口、与I/O扩展单元相连的扩展口以及与编程器或EPROM写入器相连的接口等;扩展单元内只有I/O和电源等,而没有CPU。基本单元和扩展单元之间一般用扁平电缆连接。整体式PLC一般还可配备特殊功能单元,如模拟量单元、位置控制单元等,使其功能得以扩展。
2)模块式PLC
模块式PLC将PLC的各组成部分分别做成若干个单的模块,如CPU模块、I/O模块、电源模块(有的含在CPU模块中)以及各种功能模块。模块式PLC由框架或基板和各种模块组成,模块装在框架或基板的插座上,如图所示。这种模块式PLC的特点是配置灵活,可根据需要选配不同规模的,而且装配方便,便于扩展和维修。大、中型PLC一般采用模块式结构。
MA012C1C-Panasonic AC Servo Motor In StockN- ( 85
MA012C1C-Panasonic AC Servo Motor In StockN- ( 85
MA012C1G-Panasonic AC Servo Motor In StockN- ( 85
MA012C1G-Panasonic AC Servo Motor In StockN- ( 85
MA012C1N-Panasonic AC Servo Motor In StockN- ( 85
MA012C1N-Panasonic AC Servo Motor In StockN- ( 85
MA012C1Q-Panasonic AC Servo Motor In StockN- ( 85
MA012C1Q-Panasonic AC Servo Motor In StockN- ( 85
MA012P1A-Panasonic AC Servo Motor 85
MA012P1A-Panasonic AC Servo Motor 85
MA012P1F-Panasonic AC Servo Motor 95
MA012P1F-Panasonic AC Servo Motor 95
MA012P1H-Panasonic AC Servo Motor 95
MA012P1H-Panasonic AC Servo Motor 95
MA012P1P-Panasonic AC Servo Motor 95
MA012P1P-Panasonic AC Servo Motor 95
MA021A1A-Panasonic AC Servo Motor 85
MA021A1A-Panasonic AC Servo Motor 85
MA021A1N-Panasonic AC Servo Motor 85
MA021A1N-Panasonic AC Servo Motor 85
MA021A1Q-Panasonic AC Servo Motor 85
MA021A1Q-Panasonic AC Servo Motor 85
MA021A1U-Panasonic AC Servo Motor 85
MA021A1U-Panasonic AC Servo Motor 85
MA022A1A-Panasonic AC Servo Motor 85
MA022A1A-Panasonic AC Servo Motor 85
MA022A1S-Panasonic AC Servo Motor 85
MA022A1S-Panasonic AC Servo Motor 85
MA022A1U-Panasonic AC Servo Motor 85
MA022A1U-Panasonic AC Servo Motor 85
MA022P1F-Panasonic AC Servo Motor 95
MA022P1F-Panasonic AC Servo Motor 95
MA041A1N-Panasonic AC Servo Motor 85
MA041A1N-Panasonic AC Servo Motor 85
MA041A1S-Panasonic AC Servo Motor 85
MA041A1S-Panasonic AC Servo Motor 85
MA041A1U-Panasonic AC Servo Motor 85
MA041A1U-Panasonic AC Servo Motor 85
MA041P1D-Panasonic AC Servo Motor 95
MA041P1D-Panasonic AC Servo Motor 95
MA041P1S-Panasonic AC Servo Motor 85
MA041P1S-Panasonic AC Servo Motor 85
MA042A3A-Panasonic AC Servo Motor 98
MA042A3A-Panasonic AC Servo Motor 98
MA042P1B-Panasonic AC Servo Motor 95
MA042P1B-Panasonic AC Servo Motor 95
MA042P1Q-Panasonic AC Servo Motor 85
MA042P1Q-Panasonic AC Servo Motor 85
MA042P1S-Panasonic AC Servo Motor 85
MA042P1S-Panasonic AC Servo Motor 85
MA082A1U-Panasonic AC Servo Motor 9
MA082A1U-Panasonic AC Servo Motor 9
MA082P1D-Panasonic AC Servo Motor 95
MA082P1D-Panasonic AC Servo Motor 95
MA082P1H-Panasonic AC Servo Motor 95
MA082P1H-Panasonic AC Servo Motor 95
MA102P1H-Panasonic AC Servo Motor 8
MA102P1H-Panasonic AC Servo Motor 8
MA152A1H-Panasonic AC Servo Motor 85
MA152A1H-Panasonic AC Servo Motor 85
MA152D1D-Panasonic AC Servo Motor 95
MA152D1D-Panasonic AC Servo Motor 95
MA152D1G-Panasonic AC Servo Motor 95
MA152D1G-Panasonic AC Servo Motor 95
MA202P1H-Panasonic AC Servo Motor 75
MA202P1H-Panasonic AC Servo Motor 75
MA3AZA1A-Panasonic AC Servo Motor 87
MA3AZA1A-Panasonic AC Servo Motor 87
MA3AZA1H-Panasonic AC Servo Motor 95
MA3AZA1H-Panasonic AC Servo Motor 95
MA3AZA1N-Panasonic AC Servo Motor 85
RNQPWWkG