A070135-H01

A070135-H01

A070135-H01

A070135-H01

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。

Square D 9070T1000D20 1 kVA Single Phase Transformer 1000 VA 9070 T1000D20

Square D 9070T2000D1 2 kVA Single Phase Transformer 2000 VA 9070 T2000D1

Square D 9070T50D20 0.05 kVA Single Phase Transformer 9070 T50D20 50 VA

Square D 9070TF200D1 0.2 kVA Single Phase Transformer TF200D1 200 VA 9070

Square D 9080 GCB-20 2 Amp 1 Pole Circuit Breaker 9080GCB-20 GCB20

Square D 9080 LBA361104 Tap Block Distribution 115 A 600 V 3 Pole 9080LBA361104

Square D 9080 LBA363104 Tap Block Distribution 335 A 600 V 3 Pole 9080LBA363104

Square D 9080 LBC363106 Tap Block Distribution 380 A 600 V 3 Pole 9080LBC363106

Square D 9080GCB-12 1.2 Amp 1 Pole Circuit Breaker 9080 GCB-12 9080GCB12 GCB12

Square D 9421LF1 Circuit Breaker Operating Mechanism 9421 LF-1 LF1 LH-6 LH6

Square D 9421LN1 Circuit Breaker Operating Mechanism 9421 LN1 9421LH6 LH6

Square D 9421LN1 Circuit Breaker Operating Mechanism 9421 LN1 LN-1 51140-354-01

Square D 9421LN3 Circuit Breaker Operating Mechanism 9421-LN3 9421

Square D 9422 RC-3 30 Amp 600 AC 250 DC Disconnect Switch 9422RC-3 9422RC3 (TB)

Square D 9422CFA30 Circuit Breaker Cable Operated Mechanism 9422 CFA30

Square D 9422RP1 Circuit Breaker Operated Mechanism & Handle 9422 RP1 RP-1

Square D 9422TCF33 30 Amp 600 Volt Fusible Disconnect Switch 9422 40566-041-51

Square D 9999 PN40 Auxiliary Contact Block 9999PN40 (TB)

Square D 9999 ST-2 Surge Suppressor 9999ST-2 9999ST2 ST2

Square D A.65 Overload Heater  A65

Square D A1.86 Overload Heater  A186

Square D A17.9 Overload Heater  A179

Square D A19.8 Overload Heater  A198

Square D A21.3 Overload Heater  A213

Square D A3.95 Overload Heater  A395

Square D A5.78 Overload Heater A578

Square D AR27 Overload Heater  2-AR27 Box of 2

Square D AR5.3 Overload Heater AR53  2-AR5.3 Box of 2

Square D AR7.0 Overload Heater AR70  2-AR7.0 AR 7.0 Box of 2

Square D B0.44 Overload Heater B 0.44

Square D B0.92 Overload Heater B 0.92

Square D B1.16 Overload Heater B116

Square D B1.88 Overload Heater B B 1.88

Square D B10.2 Overload Heater B 10.2

Square D B14 Overload Heater B 14

Square D B2.65 Overload Heater B265 B 2.65

Square D B28.0 Overload Heater B 28.0

Square D B3.00 Overload Heater B 3.00

Square D B4.85 Overload Heater B485  2-B4.85 Box of 2

Square D B40 Overload Heater B 40

Square D B56 Overload Heater B 56

Square D Class 8502 PD2.10E Starter 110/120 VAC 5 HP 8502PD210E 8502PD2.10E (TB)

Square D D322N 60 Amp 240 VAC 3 P General Duty Fusible Safety Switch Disconnect

Square D Disconnect Handle Stainless Steel 9422

Square D Disconnect Handle Steel 9422

Square D EDB14020 20 Amp 277 VAC 1 Pole Circuit Breaker EDB EDB14

Square D EDB34040 40 Amp 480/277 VAC 3 Pole Circuit Breaker EDB EDB34

Square D EGB34060 60 Amp 480/277 VAC 3 Pole Circuit Breaker EGB EGB34

Square D EH24020 20 Amp 480 VAC 2 Pole Circuit Breaker EH4

Square D EHB24020PL 20 Amp 2 Pole Circuit Breaker 480/277 VAC EHB Power Link

Square D FA22015AB 15 Amp 240 VAC 250 VDC 2 Pole Circuit Breaker FA FA22

Square D FA22040AB 40 Amp 240 VAC 250 VDC 2 Pole Circuit Breaker FA FA22

Square D FA22040AB 40 Amp 240 VAC 250 VDC 2 Pole Circuit Breaker FA FA-22040-AB

Square D FA24015AB 15 Amp 480 VAC 250 VDC 2 Pole Circuit Breaker FA FA24

Square D FA-24020-AB 20 Amp 480 VAC 250 VDC 2 Pole Circuit Breaker FA FA24020AB

Square D FA24050AB 50 Amp 480 VAC 250 VDC 2 Pole Circuit Breaker FA FA24

Square D FA-32020 20 Amp 240 VAC 250 VDC 3 Pole Circuit Breaker FA32020

Square D FA-32030 30 Amp 240 VAC 250 VDC 3 Pole Circuit Breaker FA32030

Square D FA-32060 60 Amp 240 VAC 250 VDC 3 Pole Circuit Breaker FA32060

Square D FA-32100 100 Amp 240 VAC 250 VDC 3 Pole Circuit Breaker FA32100

Square D FA-323 100 Amp 240 VAC Fusible Busway Switch Bus Plug FA323

Square D FA36050 50 Amp 600 VAC 250 VDC 3 Pole Circuit Breaker FA FA36

Square D FA36100 100 Amp 3 Pole Circuit Breaker 600 VAC 250 VDC  No Box

Square D FAL12015 15 Amp 120 VAC 125 VDC 1 Pole Circuit Breaker FAL FAL12

Square D FAL12030 30 Amp 120 VAC 125 VDC 1 Pole Circuit Breaker FAL FAL12

Square D FAL-22030 30 Amp 240 VAC 2 Pole Circuit Breaker FAL FAL22030

Square D FAL24015 15 Amp 480 VAC 250 VDC 2 Pole Circuit Breaker FAL FAL24

Square D FAL24100 100 Amp 480 VAC 250 VDC 2 Pole Circuit Breaker FAL FAL24

Square D FAL32015 15 Amp 240 VAC 250 VDC 3 Pole Circuit Breaker FAL FAL32

Square D FAL32060 60 Amp 240 VAC 250 VDC 3 Pole Circuit Breaker FAL FAL32 FA

Square D FAL32100 100 Amp 3 Pole Circuit Breaker 240 VAC 250 VDC FAL FAL32

Square D FAL34015 15 Amp 480 VAC 250 VDC 3 Pole Circuit Breaker FAL FAL34

Square D FAL34020 20 Amp 3 Pole Circuit Breaker 480 VAC 250 VDC FAL FAL34 (TB)

Square D FAL34030 30 Amp 480 VAC 250 VDC 3 Pole Circuit Breaker FAL FAL34

Square D FAL34040 40 Amp 480 VAC 250 VDC 3 Pole Circuit Breaker FAL FAL34

Square D FAL34040 40 Amp 480 VAC 250 VDC 3 Pole Circuit Breaker FAL FAL-34040

Square D FAL34060 60 Amp 480 VAC 250 VDC 3 Pole Circuit Breaker FAL FAL34

Square D FAL34080 80 Amp 480 VAC 250 VDC 3 Pole Circuit Breaker FAL FAL-34080

Square D FAL-36015-13M 15 Amp 3 Pole Circuit Breaker 600 AC FAL3601513M FAL36015

Square D FAL361001021 100 Amp 3 Pole Circuit Breaker 600 VAC 250 VDC FAL FAL36

Square D FB2611CC 2 Pole 30 Amp 600 V Fuse Holder

Square D FB3611CC 30 Amp 3 Pole Fuse Holder 600 VAC FB3611

Square D FCL34050G 50 Amp 3 Pole Circuit Breaker 480 VAC FCL34050 FCL

Square D FH36015 15 Amp 3 Pole Circuit Breaker 600 VAC 250 VDC FH 36015 FA

Square D FHL36015 15 Amp 3 Pole Circuit Breaker 600 VAC 250 VDC FHL 36015 FAL

Square D H321-NRB 30 Amp 240 VACFusible Disconnect Switch H 321-NRB H321NRB

Square D H-322-N 60 Amp 240 VAC 3 Pole Fusible Safety Switch Disconnect H322N

Square D H362AWK 60 Amp 600 Volt 3 Pole Heavy Duty Fusible Switch Disconnect