SA3-402D

SA3-402D

SA3-402D

SA3-402D

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。

Turck NI15U-M18-AP6X-H1141 Proximity Sensor NI15UM18AP6XH1141

Turck Ni20-Q50-ADZ30X2-B3131/S34 Ni20-Q50-ADZ30X2-B3131 Ni20Q50ADZ30X2B3131

Turck Ni2-Q6.5-AP6-0.1-FS4.4X3/S304 10-30 VDC 2 mm Sensor Ni2Q65AP601FS44X3S304

Turck NI4-M12E-VP6X-H1141 Sensor NI4M12EVP6XH1141 NI 4-M12E-VP6X-H1141  (TB)

Turck Ni60-K90SR-FDZ30X2 Proximity Sensor 60 mm 250 VAC 300 VDC Ni60K90SRFDZ30X2

Turck Ni8U-M12-AN6X-H1141 Proximity Sensor Ni8UM12AN6XH1141

Turck PKG 3M-1-RS 4T Cordset PKG3M-1-RS4T PKG3M1RS4T  (TB)

Turck PKG 3Z-2/S90 Cordset Snap On Connector PKG3Z-2/S90 PKG3Z2S90  (TB)

Turck Releco C2-A20 120 VAC Relay C2A20 C2-A 20

Turck Releco C2-A20X 24 VDC Relay C2A20X C2-A 20 X

Turck Releco C2-A20X/...V 120 VAC Relay C2A20X C2A20XV AC120V

Turck Releco C2-A20X/...V 120 VAC Relay C2A20X C2A20XV AC120V C2-A20X A 20 X

Turck Releco C3-A30 24 VDC Coil Relay C3A30 C3 A30

Turck Releco C3-A30X 120 VAC Coil Relay C3A30X C3 A30 X

Turck Releco C4-A40X 120 VAC Relay C4A40X C4-A 40 X

Turck Releco C5-A20X 120 VAC Coil Relay C5A20X C5 A20 X

Turck Releco C5-A30 120 VAC Coil Relay C5A30 C5 A30

Turck Releco C7-A20X 120 VAC Relay w/ Base C7A20X C7-A20 X C7A20

Turck Releco C7-A20X 24 VDC Relay w/ Base C7A20X C7-A20 X C7A20

Turck Releco KUP 2C 120 VAC Coil Relay KUP2C

Turck Releco S2-B 8 Pin Relay Base S2B S2 B

Turck Releco S3-S 11 Pin Relay Base S3S S3 S

Turck RK 4T-3.3/S90-SP Euro Fast RK4T-3.3/S90-SP RK4T33S90SP  (TB)

Turck RK4.4T-10 Euro Fast Cordset RK4.4T RK4.4T10 RK 4.4T-10

Turck RKE4T-6/S600 4 Pin 3 Wire 6 Meter M12 Cordset RKE4T-6 RKE 4T - 6 / S600

Turck RKM 60-4M/CS13188 Mini Fast RKM60-4M/CS13188 RKM604MCS13188

Turck RSM-2RKM 50 Minifast Tee 3 Way Connector RSM2RKM 50 RSM-2RKM50

Turck VB 403Z-FS8 I/O Block VB403Z-FS8 VB403ZFS8 (TB)

Turck VB 404M-BS14 I/O Block VB404MBS14 VB404M-BS14 (TB)

Turck VB 80.5-5-CSM 19/S90 I/O Block VB80.5-5-CSM 19/S90 VB80.5-5-CSM19/S90

Turck VBRS 4.4-2RK 4T-0.3/0.3 Spliter Cable VBRS4.4-2RK 4T-0.3/0.3

Turck WK 4.43T-8/S90 Euro Fast 250 V 4 Amp WK4.43T-8/S90 WK443T8S90

Turck WK4.4T-6 Euro Fast Cordset WK4.4T WK44T6 WK 4.4T-6

Tweco 24A-62SS Nozzle 5/8" for No. 4 MIG Guns 24A62SS

Tweco Robotics RDM-2000-H Heavy Duty Deflection Mount Welding RDM-2000 RDM2000H

Tyco SSR-240D25 Solid State Relay 3-32 VDC Input 24-280 VAC Contact SSR240D25

Tyco SSRT-240D25 Solid State Relay 3-32 VDC Input 24-280 VAC Contact SSRT240D25

U.S. Electrical Motors A907A Unimount 125 5 HP Motor 184T 1740 RPM 208-230/460 V

U.S. Electrical Motors U3V2BC 3 HP Motor 182TC 1765 RPM 230/460 V

UniMeasure VPA-20 48.7 mV/V/Inch Transducer VPA20

Union 388-402 2 Pole Fuse Holder 388402

Union 388-424 1 Pole Fuse Holder 388424

Union 388-425 1 Pole Fuse Holder 31-60 Amp 600 V 388425  (TB)

UniOP eTOP50-0050 24 VDC Panel Screen eTOP500050 TOP50-0050 Uni OP

United Electric Controls F403-4BS Temperature Control 15 Amp F4034BS F403 4BS

United Electric Controls H54 25 9516 Pressure Switch 10-100 PSI 480 VAC H5425

United Electric Controls J402P 13579

Universal Dynamics PCB7C I/O Module 16 Input 16 Output ACPCB-7C ASM# 884

Universal Dynamics UDC-0385 Loader Board Rev B UDC0385

Urschel 1-2565-7 J J Face Seal 125657J

US Electrical Motors A907A Unimount 125 5 HP AC Motor Shur Stop 105634109001

USD 11630 1 Pole Fuse Holder 600 V 30 Amp

USD 11630 3 Pole Fuse Holder 600 V 30 Amp

USD 13024 16323 Tap Distribution Block 600 V

USO 16327 3 Pole 600 V Distribution Tap Block

USRobotics Sportster 33.6 Faxmodem 33 600 336 Fax Modem

UTC R-74 Single Phase Transformer R74

VAC Cubes 120L Multi Venturi Vacuum Ejectors

VAC Cubes 180L Multi Venturi Vacuum Ejectors

VAC Cubes 60 Multi Venturi Vacuum Ejectors

Vaccon VP20-150M Vacuum Pump VP20150M

Vaisala 8MITTAPAA

Valu Guide Mar Bett SpA 12" 1 Foot Section of Conveyor Rollers

Valu Guide VG-253-12 Stainless Steel Conveyor Bracket VG25312

Valu Guide VG-281 Female Turn Handle VG281

Valu Guide VG-621-1212 Conveyor Bracket VG6211212

Veeder Root 779555-216 7795 Hour Meter 12-24 VDC 779555216

Veeder Root 799988-610 Timer 799988610

Veeder Root C628-40002 Rate Meter LV 24 V AC 50/60 Hz. & DC C62840002

Veeder Root SQC22000 Squire Counter Two Preset 115 VAC Danaher

Veris Industries PS 24 Power Supply 24 VDC 1 Amp Output 85 - 265 VAC Input

Veris Industries Z100575-OB Hawkeye 221 Analog Current Sensor 300 Amp Z100575OB

Versa KSG-4232-120V60 KSG-4232-6K-3TC-120V60 KSG4232120V60 KSG42326K3TC120V60

Versa KSG-4232-3TC-120V60 40-175 PSI 120 VAC Valve KSG42323TC120V60

Vescor ALG10T 10" Oil Level Gage w/ Thermometer  (TB)

Vexta PK596-NAA 1.15 VDC 2.8 Amp Stepping Motor 5 Phase 0.72 Step PK596NAA

Vickers 20058A RV1-10-S-0-18 Relief Valve Block RV110S018

Vickers 20V8A151B22R Vane Pump 339671

Vickers 312 FR2-16-S-0-/10.00 Flow Control Valve FR216S010.00

Vickers 710775 Receptacle Connector

Vickers 710776 Receptacle Connector

Vickers DGMX2-3-PP-CW-S-40 Pressure Reducing Valve DGMX23PPCWS40

Vickers PV020-B2R-SE1S-21-C21D-12 Piston Pump 02-341553 PV020B2RSE1S21C21D12

Vickers PVB5 RSY 21 CG 20 S30 Piston Pump 857366 H/92/0 PVB5RSY21CG20S30

Vickers V6021B2C05 Flowtech Corp. Hydraulic Filter Element

Vickers V6021B5C05 Flowtech Corp. Hydraulic Filter Element

Vicor VI-RJ1222-CYYZ MasterMod JR 24 V 183 W VIRJ1222CYYZ (TB)

Victor Reinz HS54395B Gasket