|
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，用面向控制过程面向用户的“自然语言”编程，适应工业环境，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系统，专为在工业环境下应用而设计。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过程。可编程序控制器及其有关的外围设备，都应按易于与工业控制系统形成一个整体、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独的模块，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系统，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。
还有一些PLC将整体式和模块式的特点结合起来，构成所谓的叠装式PLC。叠装式PLC的CPU、电源、I/O接口等也是各自独立的模块，但它们之间是靠电缆进行连接的，并且各模块可以一层层地叠装。这样，不但系统可以灵活配置，还可做得体积小巧。
2.2.按功能分类
根据PLC的功能不同，可将PLC分为低档、中档、。
（1）低档PLC
低档PLC具有逻辑运算、定时、计数、移位以及自诊断、监控等基本功能，还可有少量模拟量输入/输出、算术运算、数据传送和比较及通信等功能，主要用于逻辑控制、顺序控制或少量模拟量控制的单机控制系统。
PCS God SUNX Pressure Sensor DP-101-M
1 pcs HL-C2C CJ2 SUNX cable tested
1 pcs FX-301 Panasonic SUNX Photoelectric Sensor
1 pcs Panasonic EX-13EBD new
1 pcs Panasonic SUNX EX-13EBD new
1 pcs PANASONIC SUNX NX5-M10RB In Box
1 pcs PANASONIC SUNX Photoelectric Sensor EQ-34-PN-J in box
1 pcs Panasonic SUNX Photoelectric Sensor EX-13A
1 pcs Panasonic SUNX Photoelectricity Sensor CX-482
1 pcs Panasonic SUNX Photoelectricity Switch EX-32A
1 pcs Panasonic SUNX Poximity Switch GH-2SE
1 pcs Panasonic SUNX Pressure Sensor DP-101A In Box
1 pcs Panasonic SUNX Pressure Sensor DP-102 In Box
1 pcs Panasonic SUNX Pressure Sensor DP-102A In Box
1 pcs Panasonic SUNX Sensor CX-444 CX444 new
1 pcs SUNX CX-424
1 pcs Sunx DP-101 Pressure Sensor IN BOX
1 pcs SUNX DP4-50Z DP4-50Z Pressure Sensor
1 pcs SUNX EX-11EA EX-11EA Photoelectric Switch
1 pcs SUNX EX-13EP in box
1 pcs SUNX EX-L221
1 pcs SUNX Fiber Optic Sensor FT-V22 FT-V22 in box
1 pcs Sunx Fiber Optic Sensor FX-D1 FX-D1
1 PCS SUNX LS-401-C2
1 pcs Sunx Photoelectric Sensor EX-14A EX-14A
1 pcs Sunx Photoelectric Sensor EX-14B EX-14B
1 pcs Sunx Photoelectric Sensor EX-23 EX-23 in box
1 pcs SUNX Proximity Switch GL-N12F in box
1 pcs Panasonic Sunx Beam Sensor RT-610-10G RT61010G in box
1 pcs PANASONIC SUNX FP-e Control Unit AFPE224300 in box
1 pcs Panasonic Sunx FX-101P-CC2 FX101PCC2 new
1 pcs PANASONIC SUNX GH-3SE PLC In Box
1 pcs Panasonic sunx GX-5M in box
1 pcs Panasonic Sunx LC4H Counter LC4H-R6-AC240VS AEL5387 LC4HR6AC240VS new
1 pcs Panasonic Sunx NA1-5 Area Switch In Box
1 pcs Panasonic Sunx Photoelectric Senor LX-111 LX111 new
1 pcs PANASONIC SUNX Photoelectric Sensor EX-31A EX31A NEW
1 pcs Panasonic SUNX PM-F44P in box
1 pcs Panasonic Sunx Positioning Unit FPG-PP21 AFPG431
1 pcs PANASONIC SUNX Sensor NA40-4SUD NA404SUD New
1 pcs SUNX ANR1215 tested
1 pcs SUNX DP-100 Mpa tested
1 pcs SUNX DP2-22 pressure sensor in box
1 pcs SUNX EF-S1HS
1 pcs SUNX EF-S1HS in box
1 pcs SUNX EX-13EP
1 pcs SUNX EX-D200E in box
1 pcs SUNX fiber amplifiers GA-15J GA15J in box
1 pcs SUNX GS-14T tested
1 pcs SUNX GX-5S IN BOX
1 pcs SUNX GX-8MU IN BOX
1 pcs SUNX GX-8MU IN BOX
1 pcs SUNX GX-8MU IN BOX
1 pcs SUNX GX-8MU IN BOX #ZL02
1 PCS SUNX GX-8MU IN BOX 05XF
1 PCS SUNX GX-8MU IN BOX S7NF
1 PCS SUNX level controller EX-F72
1 PCS SUNX Panasonic EX-13EA Photoelectric switch sensor Genuine
1 PCS SUNX Panasonic EX-13EB Photoelectric switch sensor Genuine
1 PCS SUNX Panasonic EX-13EB-PN Photoelectric switch sensor Genuine
1 PCS SUNX Panasonic EX-14A Photoelectric switch sensor Genuine
1 PCS SUNX Panasonic EX-24A Photoelectric switch sensor Genuine
1 PCS SUNX Panasonic EX-24B Photoelectric switch sensor Genuine
1 PCS SUNX Panasonic EX-31A Photoelectric switch sensor Genuine
1 PCS SUNX Panasonic EX-L211 Photoelectric switch sensor Genuine
1 PCS SUNX Panasonic EX-L221 Photoelectric switch sensor Genuine
1 PCS SUNX Panasonic FX-305 FIBER AMPLIFIER SENSOR Genuine
1 PCS SUNX Panasonic PM2-LF10 Photoelectric switch sensor Genuine
1 pcs SUNX Photoelectric Sensor EX-11A EX11A in box
1 pcs Sunx Photoelectric Sensor NX5-M10RP ( NX5M10RP ) in box
1 pcs SUNX Photoelectric Switch FX-D1P FXD1P PNP in box
1 pcs SUNX Photoelectric Switch Sensor FX-301 FX301 new
1 pcs SUNX Pressure Sensor DP2-20 DP2 20 DP220
1 pcs SUNX Pressure Sensor DP2-20 DP2 20 DP220 in box
1 pcs SUNX Pressure Sensor DP2-21 DP2-21 IN BOX
1 pcs SUNX Pressure Sensor DP2-80 DP2-80 IN BOX
1 pcs SUNX Proximity Switch GX-3S-R in box
1 pcs SUNX PX-24 in box
1 PCS SUNX SL-VT8J TESTED
1 pcs SUNX TR-1515
1 PCS Good SUNX FT-E20 #K504 LL
1 x SUNX FX-7 PHOTOELECTSENSOR Slim with Automatic Sensitivity Setting BOX
10 Panasonic SunX GXL-8HB Proximity Sensor Switch 2.5mm
10 Sunx EX-14A Photoelectric Sensor
10 SUNX PM-L53 Photoelectric U Shape Sensor LOT T12164
102-102// SUNX FX-11 (5EA) SENSOR [ /FAST]
102-102// SUNX GL-18HL (5EA) SENSOR [ /FAST]
103-101// SUNX DP-M2Z CONTROLLER [ /FAST]
103-101// SUNX DP-M2ZA CONTROLLER [ /FAST]
103-101// SUNX DPX-200B CONTROLLER [ /FAST]
103-101// SUNX DPX-210B CONTOLLER [ /FAST]
103-101// SUNX DPX-800 CONTROLLER [ /FAST]
10PC Panasonic SUNX PM-Y54 Photoelectric Sensor
10PC PANASONIC SUNX PM-Y54 PHOTOELECTRIC SENSOR QO7E
10pcs Panasonic SUNX PM-T54 photoelectricity switch
10pcs SUNX Cable Connector CN-14H-C1 ( CN14HC1 )
10PCS SUNX Panasonic Photoelectric switch sensor CX-411
10PCS SUNX Panasonic Photoelectric switch sensor CX-421
10PCS SUNX Panasonic Photoelectric switch sensor CX-424
10PCS SUNX Panasonic Photoelectric switch sensor CX-442
10PCS SUNX Panasonic Photoelectric switch sensor FD-31
10PCS SUNX Panasonic Photoelectric switch sensor FD-33G
10PCS SUNX Panasonic Photoelectric switch sensor FD-42G
10PCS SUNX Panasonic Photoelectric switch sensor FD-42G
10PCS SUNX Panasonic Photoelectric switch sensor FD-43G
10PCS SUNX Panasonic Photoelectric switch sensor FD-63
10PCS SUNX Panasonic Photoelectric switch sensor FD-65
10PCS SUNX Panasonic Photoelectric switch sensor FT-44
10PCS SUNX Panasonic Photoelectric switch sensor PM-F44
10PCS SUNX Panasonic Photoelectric switch sensor PM-F54
10PCS SUNX Panasonic Photoelectric switch sensor PM-R24
10PCS SUNX Panasonic Photoelectric switch sensor PM-R44
10PCS SUNX Panasonic Photoelectric switch sensor PM-T44
10PCS SUNX Panasonic Photoelectric switch sensor PM-Y44
10PCS SUNX Panasonic Photoelectric switch sensor PM-Y54
10PCS SUNX Panasonic Photoelectric switch sensor PM-Y64
10PCS SUNX Photo Micro Sensor PM-K53 PMK53
10PCS SUNX Photo Micro Sensor PM-K53B PM-K53B
10pcs SUNX Photo Micro Sensor PM-K54P |
