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。

OPTTHRFR4 Motor Drives/VFDs/Speed Controllers

 NSB SPI261A0-5A3N1 Motor Drives/VFDs/Speed Controllers

Thomas & Betts NSB MSC14 Motor Mounting and Motor Accessories 15

 NSB ECN0801BAA Other Motor Operation and Control

 NSB DC1-34014NB-A20CE1 Motor Drives/VFDs/Speed Controllers

 NSTPR1P6BC1 Manual Motor Protectors Din Rail 3P 1-1.6A 600V 50/60Hz

 NSB DC1-34024NB-A20CE1 Motor Drives/VFDs/Speed Controllers

 NSB DBR-R063-W1600 Motor Mounting and Motor Accessories Brake Resistor 160

 NSB HT8AAHAB Motor Controllers Non-Illuminated 1NO 1NC Black NEMA 1, 2, 3,

 1C19848G01 Motor Operators MR2 Pendant

 NSB PKZM0-10/AK Motor Circuit Protector (MCPs)

 NSTPAXUVR120V60H Manual Motor Protectors Undervoltage Release 120V 50/6

Lutron NSB GRX-4M-GC Motor Controllers

 HMCPS007C0C Motor Circuit Protector (MCPs) Manual Motor Protector 3P 7

Honeywell NSB L404V1053 Other Motor Operation and Control

1  Honeywell NSB L404V1053 Other Motor Operation and Control

 NSB HMCP150U4 Manual Motor Protectors 3P 150A 600V 50/60Hz

 NSB HMCP015E0C Manual Motor Protectors HMCP 3P 15A 600V 50/60Hz

Morris NSB T4JR0520 Motor Capacitors

 NNTPR016BC1 Manual Motor Protectors 16A 50/60Hz

 MMX11AA1D7N0-0 Motor Drives/VFDs/Speed Controllers

 NNTPR001BC1 Manual Motor Protectors Rotary 3P 1A 600V 50/60Hz B Frame E

 NSB C441DB-GR1 Motor Insight 5-90A 600V

 NSB EBMCFM Enclosed Motor Starters Explosion Proof Combiation Line Starter

 NSB SVX001A1-4A1B1 Motor Drives/VFDs/Speed Controllers

 HMCPS015E0C Motor Circuit Protector (MCPs)

 MMX34AA1D3F0-0 Motor Drives/VFDs/Speed Controllers

 NSTPB020BC1 Manual Motor Protectors Pushbutton 20A B Frame

 NSB HMX35AG10022-N Motor Drives/VFDs/Speed Controllers

 NSB DM1-34012EB-S20S Motor Drives/VFDs/Speed Controllers

 NSB ECN0501CAA Enclosed Motor Starters Non-Combination Non-Reversing 3P 18

Nvent NSB C1465NM Motor Controllers

 NNTPEXT1P2B Motor Mounting and Motor Accessories

 C441BB Motor Protection Relay 5-90A 240V

 NSB DM1-34016EB-S20S Motor Drives/VFDs/Speed Controllers

 NSTPR016BC1-GR1 Manual Motor Protectors

 NSB DC1-344D1NB-A66N Motor Drives/VFDs/Speed Controllers

 NSB HMX34AG9D621-N Other Motors/Drives/Speed Controllers

Siemens NSB SCF-B10-120U Enclosed Motor Starters

 MMX32AA2D4N0-0 Motor Drives/VFDs/Speed Controllers

 NSB HMX34AG03121-N Motor Drives/VFDs/Speed Controllers

 NSB ECN0531AAA Enclosed Motor Starters Non-Combination Non-Reversing 90A 1

 NSB DC1-122D3NN-A6SN Motor Drives/VFDs/Speed Controllers 2.3A 240V 50/60Hz

 NNTPR025DC1 Manual Motor Protectors Rotary 3P 25A 600V D Frame

 NSB EOPFJ24D Circuit Breaker Accessories Motor Operator 3P 2A 24V 50/60Hz

 NSB EMS-ROS-T-2.4-SWD Enclosed Motor Starters

 NSTPB016BC1 Manual Motor Protectors Pushbutton 16A 50/60Hz B Frame P

 NSN-2AI-PI/NI-2/3 Motor Controllers

 NSB FAZ-D30/1-SP Manual Motor Protectors 1P 30A 230V 50/60Hz

 NSB C441BB-GR1 Motor Protection Relay 5-90A 240V

Siemens NSB SCF-B20-120U Enclosed Motor Starters

GE NSB CR308DT02RB1AAAAA Enclosed Motor Starters

 NSB HMX35AG05222-N Motor Drives/VFDs/Speed Controllers

 NSB ECN0511ABA Enclosed Motor Starters Non-Combination Non-Reversing 120V

Siemens 3VE1000-2G Enclosed Motor Starters

 AE16ENS0 Non-Reversing Starters Motor Control Starter 25A 1Ph

GE NSB CR408B602R31AAAAA Enclosed Motor Starters

Allen Bradley NSB 800T-N10 Other Motor Operation and Control

GE NSB CR101H Starters Motor Starter 16A 230V

 NSB DC1-32018FB-A20CE1 Motor Drives/VFDs/Speed Controllers

Square D NSB 8536SBG1V02S Motor Control Centers and Buckets

EatoTPT016BC1NL Manual Motor Protectors

 NSB ECN0521AAA Enclosed Motor Starters Non-Combination Non-Reversing 45A 1

EatoTFC016BCTD Motor Controllers

Crouse-Hinds NSB ECN08C1BAA Enclosed Motor Starters

 USD 225SL-131A Misc. Motor

Baldor NSB 2-547-258-999 Electric Motors 7.4/3.7A 115/230V 0.5HP

Crouse-Hinds NSB DL17 Other Motor Operation and Control

 HMCPE003A0C Motor Circuit Protector (MCPs) HMCPE 3P 3A 480V 50/60Hz J-

 ECN05A1CAA-MOD-3-4211-0047A Enclosed Motor Starters

Furnas Electric NSB 14FSF32AC Enclosed Motor Starters

 NSB SVX003A2-2A1B1 Motor Drives/VFDs/Speed Controllers

Cutler-Hammer USD HMCPE100R3C Motor Circuit Protector (MCPs) HMCP 3P 100A 480V N

 NSB DM1-327D8NB-S20S Motor Drives/VFDs/Speed Controllers

 NSB ECN0501AAA Enclosed Motor Starters Non-Combination Non-Reversing 3P 18

 NSB DXA-EXT-3RO Motor Drives/VFDs/Speed Controllers

EatoTFC025DCA Motor Controllers

 NSB SPX050A2-4A1N1 Motor Drives/VFDs/Speed Controllers

Carlo Gavazzi NSB RSE2212-B Open Motor Starters

 NSB DA1-342D2FB-A6SC Motor Drives/VFDs/Speed Controllers 2.2A 480V 50/60Hz

 NSB PKZM0-63/AK Motor Circuit Protector (MCPs)

Appleton NSB EFDCL75-J1U2 Motor Controllers

 NSB SPX005A1-4A1B1 Motor Drives/VFDs/Speed Controllers

EatoTPR016DCB Motor Circuit Protector (MCPs)

Abb NSB TEF5-OFF Motor Controllers

 NSTPEXTA004 Manual Motor Protectors

 NSB ECX11D1CAA Enclosed Motor Starters Non-Combination Non-Reversing 12A 4

EatoTFC016BBA Motor Controllers

 NSB M22S-R10K Motor Operators Potentiometer Black

 NSB DC1-327D0FB-A6SN Motor Drives/VFDs/Speed Controllers

 NSB ECN0531AAA-MOD-84-28694-2 Enclosed Motor Starters

Square D NSB 8536SAO12 Enclosed Motor Starters

 NSB OPTB5V Motor Drives/VFDs/Speed Controllers

 NSB DE1-121D4NN-N20N Motor Drives/VFDs/Speed Controllers

 NSB DC1-344D1NN-A20CE1 Motor Drives/VFDs/Speed Controllers

 NSB MMX32AA1D7N0-0 Other Motors/Drives/Speed Controllers

 NSTPB6P3BC1 Manual Motor Protectors 2P 4-6.3A IP20 45mm

 NSB HMCP100R3C Motor Circuit Protector (MCPs) HMCP 3P 100A 600V 50/60Hz 3P

Idec Izumi Corporation PS5R-A05 Other Motor Operation and Control

 NSB DC1-342D2FN-A66N Motor Drives/VFDs/Speed Controllers

 NFXF25A0-2 Motor Drives/VFDs/Speed Controllers

EatoTPR032DCB Motor Circuit Protector (MCPs)

GE NSB CR408C102R3101534 Enclosed Motor Starters

 NNTPEXT004B Manual Motor Protectors

 NSB DM1-34023NB-S20S Motor Drives/VFDs/Speed Controllers

 NSB DC1-344D1FN-A6SN Other Motors/Drives/Speed Controllers

 NSB HMX35AG02221-N Motor Drives/VFDs/Speed Controllers

 NSB DA1-353D1NB-B6SC Motor Drives/VFDs/Speed Controllers

Idec Izumi Corporation NSB RSE2225-C10 Motor Controllers

GE NSB CR1062R2BAT3000 Enclosed Motor Starters

 NSB DC1-32018FB-A66N Motor Drives/VFDs/Speed Controllers

 NSB HMCP070J2 Motor Circuit Protector (MCPs)

 NSB ECN0501BAA Enclosed Motor Starters Non-Combination Non-Reversing 3P 18

 NSB ECN0521ABA Enclosed Motor Starters Non-Combination Non-Reversing 240V

Ametek NNLGI30E4-A Enclosed Motor Starters

Unbranded SF-410098 Electric Motors Step Motor

Cutler & Hammer NSB ECN0811AJA Other Motor Operation and Control

 NSB DC1-349D5FB-A66N Motor Drives/VFDs/Speed Controllers

 NSB ECN0541AAA Enclosed Motor Starters Non-Combination Non-Reversing 120V

 FAZ-C10/1-SP Motor Circuit Protector (MCPs) FAZ 1P 10A 277V 50/60Hz 1P

 NSB ECN0501AHA Enclosed Motor Starters Non-Combination Non-Reversing 18A 1

 NSB JGMPS100WA3D15Y2 Manual Motor Protectors JGMPS 3P 100A 690V 50/60Hz

 NSTPT010BC1NL Manual Motor Protectors

 NSB SPX001A1-4A1B1 Motor Drives/VFDs/Speed Controllers

 NSB QCPHW2015 Manual Motor Protectors Quicklag 2P 15A 240V 50/60Hz

 NSB ECN2222AAF Enclosed Motor Starters Combination Non-Reversing 120V 50/6

 NSB DE1-345D0NN-N20N Motor Drives/VFDs/Speed Controllers

 NSTSC032DCTD Manual Motor Protectors

 NSB DA1-12011FB-B6SC Motor Drives/VFDs/Speed Controllers

 MMX34AA014N0-0 Motor Drives/VFDs/Speed Controllers

 MMX34AA4D3F0-0 Other Motors/Drives/Speed Controllers

GE NSB 3206 Electric Motors