A0J2-E56DT

A0J2-E56DT

A0J2-E56DT

A0J2-E56DT

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。

Sprecher + Schuh CA3-12-10 24 VAC Coil Reversing Motor Starter CA3-12 CA312

Sprecher + Schuh CA3-16 110/120 VAC Coil Starter CA316 CA3-16-10 CA 3-16

Sprecher + Schuh CA3-16C 42 VDC Coil Starter CA316C CA3-16-10 CA 3-16

Sprecher + Schuh CA3-9 120 / 110 V Coil Starter CA 3-9 CA3-9-10 CA3910

Sprecher + Schuh CA3-9 24 VDC Coil Starter CA 3-9 CA3-9-10 CA3910 CA 3-9C

Sprecher + Schuh CA3-P -11- Auxiliary Contact Block CA 3-P CA3P

Sprecher + Schuh CA4-5-10 12 VAC Coil Starter 3 HP @ 460 V CA4-5 CA45 CA4510

Sprecher + Schuh CA6-105-EI 208-277 VAC Coil 75 HP @ 460 V CA 6-105-EI CA6105EI

Sprecher + Schuh CA7-12C-10 24 VDC Coil Starter 7.5 HP @ 460 V CA712C10 CA7 12

Sprecher + Schuh CA7-16C-10 24 VDC Coil Starter 10 HP @ 460 V CA716C10 CA7 16

Sprecher + Schuh CA7-37C-00 24 VDC Coil Starter 25 HP @ 460 V CA737C00 CA7 37

Sprecher + Schuh CA7-9C-10 24 VDC Coil Starter 5 HP @ 460 V CA79C10 CA7 9 10

Sprecher + Schuh CEP7-EEDB 3.2-16 Amp Overload Relay CEP7EEDB

Sprecher + Schuh CRD7-250 12...250 V DC Coil Diode CRD7250

Sprecher + Schuh CS7C-40E 24 VDC 4 NO Relay CS7C40E CS7 40E

Sprecher + Schuh CS7-PV-22 Auxiliary Contact Block CS7-PV22 CS7PV CS7PV22

Sprecher + Schuh CT 3-12 6 - 9.5 Amp Overload Relay CT3-12 CT312

Sprecher + Schuh CT 3-12 8.5-12.5 Amp Overload Relay CT3-12 CT312

Sprecher + Schuh CT3K-12 0.8-1.2 Amp Overload Relay CT3K12 CT 3K-12

Sprecher + Schuh D5-3D0 Start Stop Push Button D5-3X10 D5-3X01 D53X10 D53X01

Sprecher + Schuh D7-D0C Blue Illuminated Button D7D0C D7

Sprecher + Schuh D7-D0C Green Illuminated Push Button D7D0C D7-X10

Sprecher + Schuh D7-D0C Red Illuminated Button D7D0C D7

Sprecher + Schuh D7-D0C White Illuminated Button D7D0C D7

Sprecher + Schuh D7-D0C Yellow Illuminated Button D7D0C D7

Sprecher + Schuh D7-X01 Red Push Button D7X01 D7

Sprecher + Schuh D7-X10 2 Position Maintained Selector Switch D7X10 D7

Sprecher + Schuh D7-X10 D7-N3R D7-X01 Red Illuminated Push Pull Button Emergency

Sprecher + Schuh F&G L8-10/2/D 2 Pole 400 VAC D 10 Amp Circuit Breaker L8102D

Sprecher + Schuh F&G L8-15/1/C 1 Pole 230/400 VAC C 15 A Circuit Breaker L8151C

Sprecher + Schuh F&G L8-3/1/C 1 Pole 230/400 VAC C 3 Amp Circuit Breaker L831C

Sprecher + Schuh F&G L8-5/1/C 1 Pole 230/400 VAC C 5 Amp Circuit Breaker L851C

Sprecher + Schuh KOP160-D Timing Timer Relay KOP160D K0P160-D

Sprecher + Schuh KT7-25-DB-54-2 Terminal Block 64 Amp KT725DB542

Sprecher + Schuh KT7-25-DB-54-3 Terminal Block 64 Amp KT725DB543

Sprecher + Schuh KT7-25-DB-54-4 Terminal Block 64 Amp KT725DB544

Sprecher + Schuh KT7-25-DB-54-5 Terminal Block 64 Amp KT725DB545

Sprecher + Schuh KTA7-25H-10A 6.3-10 Amp Motor Protector KTA725H10A KTA7-25H

Sprecher + Schuh KTA7-25H-16A 10-16 Amp Motor Protector KTA725H16A KTA7-25H

Sprecher + Schuh KTA7-25H-2.5A 1.6-2.5 Amp Motor Protector KTA725H25A KTA7-25H

Sprecher + Schuh KTA7-25H-4.0A 2.5-4 Amp Motor Protector KTA725H40A KTA7-25H

Sprecher + Schuh KTA7-25H-6.3A 4-6.3 Amp Motor Protector KTA725H63A KTA7-25H

Sprecher + Schuh KTA7-25S-1.6A 1-1.6 Amp Motor Protector KTA725S16A KTA7-25S

Sprecher + Schuh KTA7-25S-10A 6.3-10 Amp Motor Protector KTA725S10A KTA7-25S

Sprecher + Schuh KTA7-25S-2.5A 1.6-2.5 Amp Motor Protector KTA725S25A KTA7-25S

Sprecher + Schuh KTA7-25S-4.0A 2.5-4 Amp Motor Protector KTA725S40A KTA7-25S

Sprecher + Schuh KTA7-25S-6.3A 4-6.3 Amp Motor Protector KTA725S63A KTA7-25S

Sprecher + Schuh L10-NJ060P3 60 Amp 600 VAC Fusible Disconnect L10NJ060P3

Sprecher + Schuh L10-NJ100P3 100 Amp 600 VAC Fusible Disconnect L10NJ100P3

Sprecher + Schuh L10-NJ200P3 200 Amp 600 VAC Fusible Disconnect L10NJ200P3

Sprecher + Schuh LA3-40-1753 40 Amp Breter Load Switch LA 3-40-1753 LA3401753

Sprecher + Schuh LA7-40-1753 40 Amp 600 VAC 3 Pole Disconnect LA7401753

Sprecher + Schuh V7-H Fuse Holder V7H Lot of 10

Sprecher + Schuh VUSI 4-10 Din Rail Fuse Holder VUSI4-10 VUSI410

SPS-01303 Resolver Encoder Interface Breakout Board Module SPS01303 0838

Square D 2510F02 FHP Manual Starter 2510 F02  (TB)

Square D 2510-FG1 Manual Starter Nema 1 Enclosure 2510FG1 FG1 572A

Square D 2936 S1 C27A Coil 2936S1C27A (TSC)

Square D 2S1F 2 kVA Single Phase Transformer 2000 VA SDC H-1

Square D 3020 CM-2250 PowerLogic Circuit Monitor CM2250 100-264 VAC 100-300 VDC

Square D 31041-400-42 110/120 VAC Coil 3104140042

Square D 31063-409-38 110/120 VAC Coil 3106340938

Square D 52045-034-50 EQ5300 Mempack Memory Module Weld Control 5204503450

Square D 52045-062-50 GM0200G 30532-002-50A AC Weld Control Module 5204506250

Square D 52045-380-50 Rev. A Weld Control Board 5204538050

Square D 52045-380-50 Rev. AVC2 Weld Control Board 5204538050

Square D 52046-124-50 Rev. C Weld Control Firing Board 5204612450

Square D 52046-491-53 Device Net I/O Weld Module TSX 170AZW88000 5204649153

Square D 5S40F 5 kVA Single Phase Transformer 5000 VA Sorgel Type S Insulated

Square D 64R-101 Current Transformer 100:5 Ratio 64R101

Square D 8501 KP12P14V20 120 VAC Relay 8501KP12P14V20

Square D 8501 KP12V20 120 VAC Relay 8501KP12V20 Series D

Square D 8501 KP12V20 120 VAC Relay 8501KP12V20 w/ Base

Square D 8501 KP12V20 120 VAC Relay 8501KP12V20 w/ Base Series D

Square D 8501 KP13P14V20 120 VAC Relay 8501KP13P14V20

Square D 8501 KP13V20 120 VAC Relay 8501KP13V20 w/ Base Series D

Square D 8501 NR51 Relay Base 8501NR51

Square D 8501 PH40E 8501PH40E 110/120 VAC Relay PH 40 E PH80E 80 8501PH80E

Square D 8501 RS41V14 24 VAC Relay 8501RS41V14 Series A

Square D 8501 RSD41V53 24 VDC Relay 8501RSD41V53 Series A

Square D 8501 RSD42V53 24 VDC Relay 8501RSD42V53 Series B

Square D 8501RS14M1P14V20 120 V Miniature GP Relay 8501 RS14M1P14V20

Square D 8502-SCO2 Motor Starter 120/110 V Coil Size 1 8502 SC02 S 8502SCO2

Square D 8502-SCO-3 Magnetic Contactor 220/240 VAC Coil Size 1 SC0 SC03 8502SC03

Square D 8502-SD02 Motor Starter 120/110 V Coil Size 2 8502 SD02 S 8502SD02

Square D 8502SD02S Contactor 120/110 V Coil Size 2 8502 SD02 S 8502SD02 SDO 2

Square D 8502-SE01 Motor Starter 440/480 V Coil 8502 SE01 8502SEO1

Square D 8502SF02S Motor Starter 120/110 V Coil Size 4 8502 SF02 8502SF02