PR9670/000-000

                                       EPRO PR9670/000-000

咨询热线--18050036945

 从PLC控制系统与电器控制系统比较可知，PLC的用户程序（软件）代替了继电器控制电路（硬件）。因此，对于使用者来说，可以将PLC等效成是许许多多各种各样的“软继电器”和“软接线”的集合，而用户程序就是用“软接线”将“软继电器”及其“触点”按一定要求连接起来的“控制电路”。

 为了更好的理解这种等效关系，下面通过一个例子来说明。如图1所示为三相异步电动机单向起动运行的电器控制系统。其中，由输入设备SB1、SB2、FR的触点构成系统的输入部分，由输出设备KM构成系统的输出部分。　

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CROUSE-HINDS 1" T37 CONDUIT OUTLET BODY, NO BOX

THK LINEAR CAGED BALL BEARING GUIDE W/ RAIL SR35SB2SS+600L NIB

MARTEL PRESSURE PROCESS CALIBRATOR WITH BETA PORT BPPA-100 MC1200

AMPROBE INSTRUMENTS RECORDER CHARTS 850-A BOX OF 6 NIB

APPLETON FSCT-1-75 CAST DEVICE BOX, NIB

RELIANCE ELECTRIC SHUNT 64671-C

SIMPSON DAYTRONIC TRANSDUCER AMPLIFIER-INDIC?ATOR MODEL 300D

GEN CUBE CORPORATION RECTIFIER POWER CUBE T544Y68

STATIC CONTROLS CORP 120V NAB-3 CONVERTER RS-232 RS-485 COMM

KEB EMC-FILTER 28E4T60-1001 301380133/12638?86 NIB

MAHR FEDERAL MAXUM GAGE CABLE, 250-320B-12, NNB

BANNER MINI-SCREEN MSR4824Y

SCHNEIDER AUTOMATION I/O BASE 24 VDC-FAST TSX MOMENTUM 170ADM35011

TURN-ACT OEM SERIES ROTARY ACTUATOR, D-350-SE-04

WILLIAMSON 700-1500F 1"@12" TEMPERATURE SENSOR WITHOUT DISPLAY FV9100UT-F-22 NNB

NORDSON 185648A ENHANCED BUBBLE DETECTOR BOARD

MURR ELEKTRONIK 24VDC 4A MSUD VALVE W/ CABLE, 7000-18121-2280?500, NNB

FANUC I/O PROCESS BOARD A16B-2203-0760/?02A

RAYTEK 24VDC 1A THERMAL PROCESS IMAGER, RAYTMP50LT

TPC WIRE & CABLE SUPER-TREX MICRO QUICK CONNECT CABLE NIB CF25F19M002 REV. B

UNIPAK 480V 25 KVAR 3 PHASE POWER CAPACITOR, 2543PMU

AC KILOWATTS GAUGE 0-1000/0-1334HP 105447

BOSCH LINE FILTER D-64711 ERBACH 107 TYPE: NAA 21-1V-D 1070085949-104

REULAND MAGNETIC BRAKE 0BCA-G16Z210-B7?70

RELIANCE ELECTRIC * DODGE COUPLING KIT * 411642 01 R

CHARM SCIENCES 12VDC AT 1.2A FIREFLY LUMINOMETER F1776

PHOENIX CONTACT 3.81MM 6-POS TERMINAL BLOCKS, MCVR 1.5/6-ST-3.81, NIB LOT OF 34

PENN P 70CA-3 PRESSURE CONTROL