A68ADCA/D

A68ADCA/D

A68ADCA/D

A68ADCA/D

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。

WESTINGHOUSE 2050A15G01 SIZE 5 AC CONTROL

WESTINGHOUSE 2081400

WESTINGHOUSE 210-1289246-D CONTACTOR

WESTINGHOUSE 223P790H01G PC DRIVE BOARD

WESTINGHOUSE 227P452H01 AMPTECTOR I SOLID STATE MODULE 6998D02G04

WESTINGHOUSE 2D81400G10 CONTROLLER

WESTINGHOUSE 32A1528G06 RELAY

WESTINGHOUSE 436A907G01

WESTINGHOUSE 5661D26G25 CIRCUIT BREAKER TRIP UNIT

WESTINGHOUSE 614C523G01 REACTOR

WESTINGHOUSE 680B103G35 10HP 3500RPM MOTOR

WESTINGHOUSE 7510E56G0 POWER BOARD

WESTINGHOUSE 9969D9610 COIL SIZE 4 110V 60HZ

WESTINGHOUSE A200M4CAC MOTOR CONTROL

WESTINGHOUSE A201K5CXZ1 MODEL J MOTOR CONTROL

WESTINGHOUSE A201K6CX MODEL J MOTOR CONTROL

WESTINGHOUSE A204S1AHA

WESTINGHOUSE A204S1BAAC SAFETY SWITCH

WESTINGHOUSE A210M3CC MODEL A CONTACTOR SIZE 2 45AMPS

WESTINGHOUSE A900M0DAC

WESTINGHOUSE AMPTECTOR I-A MODEL

WESTINGHOUSE BOARD 2838A32G01

WESTINGHOUSE BOARD 2838A45G01

WESTINGHOUSE CIRCUIT BREAKER 1264C99G02

WESTINGHOUSE CIRCUIT BREAKER FD3020A02

WESTINGHOUSE CIRCUIT BREAKER KD3400FS

WESTINGHOUSE CIRCUIT BREAKER MCP03150R

WESTINGHOUSE CIRCUIT BREAKER NC31000

WESTINGHOUSE CONTROLLER 2D78522

WESTINGHOUSE DRIVE BOARD 7064C03G01

WESTINGHOUSE FB3050PL TRI-PAC DEION CIRCUIT BREAKER 3P 50A

WESTINGHOUSE FD3025VL CIRCUIT BREAKER 25A

WESTINGHOUSE FD3035VL CIRCUIT BREAKER 35A

WESTINGHOUSE FD3045VL CIRCUIT BREAKER 45A

WESTINGHOUSE FD3150

WESTINGHOUSE FDB3150L CIRCUIT BREAKER

WESTINGHOUSE FDPS363 PANELBOARD SWITCH

WESTINGHOUSE HKD3225 w aux switch and shunt CIRCUIT BREAKER

WESTINGHOUSE HKD3225A06U18 CIRCUIT RBEAKER 225A

WESTINGHOUSE HLA3600T CIRCUIT BREAKER TRIP DEVICE 600A 3P

WESTINGHOUSE HM2P250W5 MOTOR CIRCUIT PROTECTOR 250A

WESTINGHOUSE HMA3800T CIRCUIT BREAKER FRAME, TRIP UNIT

WESTINGHOUSE HMCP003A0CB CIRCUIT BREAKER

WESTINGHOUSE HMCP015E0A06

WESTINGHOUSE HMCP250A5C MOTOR CIRCUIT PROTECTOR 250A

WESTINGHOUSE HMCP400F5W 400A CIRCUIT BREAKER

WESTINGHOUSE HMCP400X5 CIRCUIT BREAKER

WESTINGHOUSE INPUT PROCESS CONTROL 1C31125G01

WESTINGHOUSE JA3175 CIRCUIT BREAKER 175A *FACTORY SEALED*

WESTINGHOUSE JA3175W CIRCUIT BREAKER

WESTINGHOUSE JA3225 CIRCUIT BREAKER

WESTINGHOUSE JA3225W CIRCUIT BREAKER

WESTINGHOUSE JB3250W CIRCUIT BREAKER

WESTINGHOUSE KD3400FS

WESTINGHOUSE KDB3175 CIRCUIT BREAKER

WESTINGHOUSE KDB3225W CIRCUIT BREAKER

WESTINGHOUSE KDL3225F CIRCUIT BREAKER 125A

WESTINGHOUSE LA3300 W/ 50 DEGREE TRIP

WESTINGHOUSE LA3400WK

WESTINGHOUSE LCL3250F CIRCUIT BREAKER

WESTINGHOUSE LD3600WK CIRCUIT BREAKER 600A

WESTINGHOUSE MME-10-150

WESTINGHOUSE MOTOR CONTROL A200M2CB

WESTINGHOUSE MOTOR CONTROL A900M1AB SIZE 1 SPEED 2

WESTINGHOUSE NB31200WK w/ 83E2319 w/ 4980D16G06 CIRCUIT BREAKER

WESTINGHOUSE NCDC312F1 CIRCUIT BREAKER

WESTINGHOUSE NCDC312F1 CIRCUIT BREAKER (AS PICTURED)

WESTINGHOUSE NCDC312F1 CIRCUIT BREAKER w/ TRIP

WESTINGHOUSE PB32500F 2000 AMP BREAKER

WESTINGHOUSE PB32500F CIRCUIT BREAKER

WESTINGHOUSE PC BOARD 3A99158-G01

WESTINGHOUSE PC1100-1022

WESTINGHOUSE PC1100-1024

WESTINGHOUSE PC32000F 2000 AMP BREAKER

WESTINGHOUSE PC700B/M2030400610 DRIVE

WESTINGHOUSE PWM5880C86H01PC BOARD W/RED LIGHTS

WESTINGHOUSE SPB 100 CIRCUIT BREAKER w/ POW-R TRIP 7 2000A

WESTINGHOUSE SPB 50 CIRCUIT BREAKER w/ POW-R TRIP 7 800A

WESTINGHOUSE T6E194 SINGLE PHASE TRANSFORMER

WESTINGHOUSE TAP 366 BUSWAY FUSIBLE SWITCH 600A (AS PICTURED)

WESTINGHOUSE TAP363 DE-ION SWITCH

WESTINGHOUSE TI-2 RELAY 1167066-B

WESTINGHOUSE TI-2 RELAY 1167069-B

WESTINGHOUSE TYPE M60 SYNCHRO ACCEPTOR

WESTINGHOUSE V200M5CJC

WESTINGHOUSE V201K5CJZ1 CONTACTOR

WETINGHOUSE P-RAB85-X99

WHEDCO 78004655 TGT-S000-1-0

WHEDCO IMC-1151-1-B

WHEDCO MTR-3S33-G-R-O-E-O SERVO MOTOR

WHEDCO PC CONTROL BOARD 17003699 REV. A

WIEDENBACH CPU105-5

WIKA 12244236 PRESSURE TRANSMITTER 0-10000 PSI

WIKA DIGITAL DISPLAY CONTROL 907.01.2083

WILDEN P1/SSPPP/TNU/TF/STF DIAPHRAGM PUMP

WILDEN PUMP P1/SSPPP/TNU/TF/STF

WINSMITH 924MDSS524X0D4 GEAR REDUCER

WINSMITH 930MDSFD SPEED REDUCER D90 TYPE SE

WINSMITH 951CDST

WINSMITH 951CSTS064X0FT GEAR REDUCER

WINSMITH SE ENCORE E30MDTS32000EK GEAR REDUCER 1750 RPM

WINTERBURN CI2120A1 TYPE B SPEED SWITCH *FACTORY SEALED*

WINTERS PAG15804 GAUGE 0-100 PSI/BAR

WIT INC INTERNATIONAL EGS-2

WITTENSTEIN ALPHA LP 120-M01-10-111-000 PLANETARY GEARHEAD REDUCER

WITTENSTEIN ALPHA SP 100W-MF2-20-1E1-2S PLANETARY GEARHEAD

WITTENSTEIN LP 090-MO1-5-111-000 GEAR BOX PLANETARY RATIO

WITTENSTEIN LP120-M01-10-111-000 GEAR DRIVE

WITTENSTEIN SP 100W-MF1-10-1E1-2S GEARHEAD

WITTENSTEIN SP 140S-MF1-10-0K1-2S

WITTENSTEIN TLSA046AAQ-305B01-001 LINEAR CYLINDER TERNERY ACTUATOR *NIB*

WITTENSTEIN VDH 063-MF1-40 GEAR REDUCER

WITTERNSTEIN, INC. LP120S-MF1-10-1/1-3S GEAR HEAD

WOODHEAD 130KA

WOODS WFC4001-OC

WOODWARD 505 TURBINE CONTROL 9907-166M (AS PICTURED)

WOODWARD 5441-611 A AMP MODULE RELAY INTERFACE

WOODWARD 5464-544 4-CHANNEL ACTUATOR CONTROL MODULE

WOODWARD 8271-425E

WOODWARD 8271-442 J

WOODWARD 8271-795

WORCESTER 10E39SWZD120AR6 ACTUATOR

WTC 812504 CONTROL

XERTEX SENSALL CONTROL 4941C0V000 SLUDGE DENSITY TRANSMITTER

XERTEX SENSALL CONTROL 502TMFH00X USED*

XYCOM 3200-0222000000000 OPERATOR INTERFACE

XYCOM 3612KPM OPERATOR INTERFACE PANEL

XYCOM 8320 OPERATOR INTERFACE 94321-002

XYCOM 8450-0485033040000 INDUSTRIAL COMPUTER W/INTEGRATED DISPLAY

XYCOM 9450 MONITOR

XYCOM 9450-27B1319010000 OPERATOR PANEL

XYCOM 9450-2AH702G010000 DISPLAY