推送：0100-3517省市县区域/直送2024全+境+派+送

福建中立恒自动化设备有限公司

一、摘要 PLC是一种专门在工业环境下应用而设计的数字运算操作的电子装置。

它采用可以编制程序的存储器，用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令，并能通过数字式或模拟式的输入和输出，控制各种类型的机械或生产过程。PLC及其有关的外围设备都应按照易于与工业控制系统形成一个整体，易于扩展其功能的原则而设计。在工业生产的各个领域，机械加工企业为了提高生产效率，采用机械化流水作业的方式，对不同类型的零件分别组成的自动生产线。随着产品机型的更新换代，生产线承担的加工对象也随之改变，这就需要改变控制程序，使生产线的机械设备按新的工艺过程运行，而继电接触器控制器系统是采用固定接线，很难适应这个要求。大型自动生产线的控制系统使用的继电器数量很多，随着PLC的应用日益普及,其使用方法简单,便于掌握,且可靠性,抗干扰性很强,自身具有完善的功能.模块化的结构,使其在工业生产线上的应用越来越广泛。

　　发展趋势：1.向高速度、大容量方向发展

　　为了提高PLC的处理能力，要求PLC具有的响应速度和更大的存储容量。目前，有的PLC的扫描速度可达0.1ms/k步左右。PLC的扫描速度已成为很重要的一个性能指标。

　　在存储容量方面，有的PLC可达几十兆字节。为了扩大存储容量，有的公司已使用了磁泡存储器或硬盘。

　　2.向超大型、超小型两个方向发展

　　当前中小型PLC比较多，为了适应市场的多种需要，今后PLC要向多品种方向发展，特别是向超大型和超小型两个方向发展。现已有I/O点数达14336点的超大型PLC，其使用32位微处理器，多CPU并行工作和大容量存储器，功能强。

Sensor Switch NSB WSD-PDT-AL Other Sensors and Switches

NSB M22-IY1 Other Sensors and Switches

NSB E71-FFDP-CA Other Sensors and Switches

Furnas Electric NSB 69WR6 Other Sensors and Switches

Sensor Switch NSB WSD-IV Bulb/Ballast/Driver Accessories Motion Sensor 120/277VA

Acuity Controls NSB PTS-60-WH Other Sensors and Switches

Square D NSB 1091-S18-G4 Sensor and Switch Accessories

Square D NSB 2510KG1 Other Sensors and Switches

 Square D NSB 2510KG1 Other Sensors and Switches

Lutron NSB DVLV-603P-BL Other Sensors and Switches Dimmer Switch 120V 60Hz Black

Telemecanique Z32BJ294 Other Sensors and Switches

NSB C362NM16 Other Sensors and Switches

NSB CSDS8A8CB2402 Sensor and Switch Accessories

Leviton NSB 1081-W Other Sensors and Switches 3A 24V White

NSB E30SG2X10D Other Sensors and Switches Illuminated 1NO 3 Position Red

Leviton NSB OSSMT-GDI Occupancy Switches Wall Switch Sensor

Allen Bradley NSB 800T-N81 Sensor and Switch Accessories

Honeywell YZ-2RW812-A2 Other Sensors and Switches

Acuity Controls NSB PTS-720-GY Other Sensors and Switches Time Switch 277V Gray

Lutron NSB MS-PPS6-DDV-WH Other Sensors and Switches

NSB E58KAM30 Sensor and Switch Accessories

Rees NSB 40258-143 Other Sensors and Switches

Rees NSB 40211-136 Other Sensors and Switches

McGill NSB 90-0002 Other Sensors and Switches

Trade Select NSB RDVCL153PLA Other Sensors and Switches Dimmer Switch 120V 60Hz

NNB WFD30 Other Sensors and Switches WiFi Smart Switch

Schneider Electric NSUZC50 Other Sensors and Switches Reflective Sensor

NSB OS310U-GY Other Sensors and Switches

Allen Bradley NSB 600-TAX4 Other Sensors and Switches

NSB E10T215ES Other Sensors and Switches 10

Lutron NSB DV-10P-AL Other Sensors and Switches Dimmer Switch

Telemecanique NSS618B1PAL10 Other Sensors and Switches

NSB HDFS3P1-W-L Other Sensors and Switches

Leviton NSB ODC04-IRW Sensor and Switch Accessories

Lutron NSB DVSC-600P-HT Other Sensors and Switches

Sensor Switch NSB GL-10PH-IV Light and Dimmer Switches

Pass & Seymour NSB 692-WG Other Sensors and Switches

Whitman Controls NSB P119G-25H-K12TB Other Sensors and Switches Pressure Switch

Hubbell NSB ATD2000C Other Sensors and Switches

1  Hubbell NSB ATD2000C Other Sensors and Switches

Acuity Controls NSB LSXR-10 Sensor and Switch Accessories

Rees 40258-143 Other Sensors and Switches

Hubbell NSB HBL5269C Other Sensors and Switches

 Hubbell NSB HBL5269C Other Sensors and Switches

Lutron NSB D-603P Other Sensors and Switches

NSB 1895GY Other Sensors and Switches 1P 15A 277V 3 Position Gray

Lutron NSB MS-OP600M-WH Other Sensors and Switches

Sensor Switch NSB PP20 Power Pack Relay Circuit 20A 277V

 Sensor Switch NSB PP20 Power Pack Relay Circuit 20A 277V

Legrand NSB TM874-WSLCC6 Other Sensors and Switches Decorator Switch 15A 120VAC

Schneider Electric NSB 9001K20 Other Sensors and Switches Potentiometer

NNB OSD10N-W Other Sensors and Switches

Hubbell NSB HBL1223I Other Sensors and Switches

Wiremold NSB V57240 Other Sensors and Switches

TELCO NSB SP00.24/115VAC Other Sensors and Switches

NNB 2102-SWITCH Other Sensors and Switches 15A 250V 50/60Hz

NSB 10250TSB Sensor and Switch Accessories

Allen Bradley NSB 800EP-KM23 Other Sensors and Switches

Cooper NSB ONW-D-1001-SP-V Other Sensors and Switches Wall Switch Sensor Ivory

NSB E51RC Other Sensors and Switches Limit Switch Receptacle 120V

NSB 2050-SWITCH Other Sensors and Switches Illuminated 15A 250V 50/60Hz Re

Legrand NSB LC2203-LA Other Sensors and Switches RF Switch 120V

NSB T0-2-9331-65/E Other Sensors and Switches Rotary Cam Switch

Lutron NSB MS-OPS6M-DV-IV Other Sensors and Switches

Sensor Switch NSB SPODMRD-WH Other Sensors and Switches Light Switch 10V DIMMABL

NSB E50KL355 Sensor and Switch Accessories

NSB E47BMS23 Other Sensors and Switches

NNB 3032W Other Sensors and Switches Double Pole Switch 2P 30A 277V White

Hubbell NSB WSS1500A Other Sensors and Switches

Sensor Switch NSB WSD-WH Other Sensors and Switches

CHWPS2040DL Other Sensors and Switches

Lutron NSB LX-603PL-IV Other Sensors and Switches

Lutron NSB LX-603PL-WH Other Sensors and Switches

NNBSY256-HCI Other Sensors and Switches

McGill NSB 0140-4000 Other Sensors and Switches

NSB 7729W-BX-LW Other Sensors and Switches Combination Device 1P 15A 277V

Lutron NSB AY2-LFSQ-AL Other Sensors and Switches

Hubbell NSB HBL1201 Other Sensors and Switches Time Switch 1P 15A 277V Brown

Acuity Controls NSB NPOD-KEY-WH Other Sensors and Switches

NSB LS-XWA-ZBZ Sensor and Switch Accessories

Lutron NSB D-603-PH Other Sensors and Switches

TELCO NSB SMPF8400PG2.5M Other Sensors and Switches

Hubbell NSB USB20AC5I Other Sensors and Switches

Hubbell NSB LHIRS1-24V-WH Other Sensors and Switches Wall Switch Sensor

Lutron NSB LX-600PL-IV Other Sensors and Switches

NNB CS-SP-1-030-333MV Sensor and Switch Accessories

Tork NSB A530M Other Sensors and Switches

Steinel America NSB LV-3-W Other Sensors and Switches Momentary 3 button White

Steinel America NSB LV-4-W-66560 Other Sensors and Switches Momentary 4 Button W

Acuity NSB WSX-PDT-VLP-GY Other Sensors and Switches Motion Detector Switch 120V

Lutron NSB AY-603P-BR Other Sensors and Switches Dimmer Switch 120V 60Hz Brown E

Furnas Electric NSB PK61 Other Sensors and Switches

NSB 14151RS6029 Other Sensors and Switches Photoelectric Sensor 30V

McGill NSB 0140-4020 Other Sensors and Switches

Rittal NSB SZ-4315.720 Other Sensors and Switches

Lutron NSB AY2-LFSQ-LA Other Sensors and Switches

TELCO NSB SMPF8500PG2.5M Other Sensors and Switches

GreenGate NSB ONW-P-1001-MV-G Other Sensors and Switches Wall Switch Sensor

NSB SUL06P-LA Other Sensors and Switches Dimmer Switch 1P 120V 60Hz

Hubbell NSB USB20A5I Other Sensors and Switches

Lutron NSB DV-600PH-WH Other Sensors and Switches Dimmer Switch 1P White

NSB SF200PH5X5 Sensor and Switch Accessories

NSB ARD-W Other Sensors and Switches Dimmer Switch 120V White

NSB TI061L Other Sensors and Switches Dimmable 1P 125V

Rees NSB 40201-136 Other Sensors and Switches

Rees NSB 40201-141 Other Sensors and Switches

USD OSD10N-W Other Sensors and Switches

First Alert NSB CO400B Other Sensors and Switches

Bryant NSB 3001I Sensor and Switch Accessories

McGill NSB 0140-3026 Other Sensors and Switches

NSB RFS15-W Other Sensors and Switches

Hubbell NSB SNAP1223INA Other Sensors and Switches

Lutron NSB LX-3PSL-IV Other Sensors and Switches

NSB 7750W-KB-LW Other Sensors and Switches

Schneider Electric NSB KCF1YZ Other Sensors and Switches

Lutron NSB AYFSQ-F-AL Other Sensors and Switches

NSB CHWPS3050D Other Sensors and Switches Water Pressure 2P 230V NEMA T

NSB RCD111I Other Sensors and Switches

NSB E22VNY1 Sensor and Switch Accessories

Lutron NSB AY-603P-LA Other Sensors and Switches

Cutler-Hammer NSB E54WXT1B Other Sensors and Switches

NSB SF200SH5X5SH1 Sensor and Switch Accessories

GENERAL ELECTRIC NSB CR2940UB200A Sensor and Switch Accessories

Lutron NSB LX-3PSL-WH Other Sensors and Switches

Pass & Seymour NSB PS40MB-BR Other Sensors and Switches

Olutron NSB S-603P-WH Other Sensors and Switches

NSB KNB/DE-P3/FS908/LIEBERT Other Sensors and Switches

NSB CS420B-BU Other Sensors and Switches

Pass & Seymour NSB PS40FB-BR Other Sensors and Switches

Hubbell NSB HBL14W47IN Other Sensors and Switches

Honeywell BZ-2R-A2 Other Sensors and Switches 15A 125V