全新原装6FM1680-3AA00

6FM1680-3AA00

PLC机型的选择的四个方面要考虑的因素

1．PLC的类型

PLC按结构分为整体型和模块型两类，按应用环境分为现场安装和控制室安装两类；按CPU字长分为1位、4位、8位、16位、32位、64位等。从应用角度出发，通常可按控制功能或输入输出点数选型。整体型PLC的I/O点数固定，因此用户选择的余地较小，用于小型控制系统；模块型PLC提供多种I/O卡件或插卡，因此用户可较合理地选择和配置控制系统的I/O点数，功能扩展方便灵活，一般用于大中型控制系统。

2．输入输出模块的选择

输入输出模块的选择应考虑与应用要求的统一。例如对输入模块，应考虑信号电平、信号传输距离、信号隔离、信号供电方式等应用要求。对输出模块，应考虑选用的输出模块类型，通常继电器输出模块具有价格低、使用电压范围广、寿命短、响应时间较长等特点；可控硅输出模块适用于开关频繁，电感性低功率因数负荷场合，但价格较贵，过载能力较差。输出模块还有直流输出、交流输出和模拟量输出等，与应用要求应一致。可根据应用要求，合理选用智能型输入输出模块，以便提高控制水平和降低应用成本。考虑是否需要扩展机架或远程I/O机架等。

3.电源的选择

PLC的供电电源，除了引进设备时同时引进PLC应根据产品说明书要求设计和选用外，一般PLC的供电电源应设计选用220VAC电源，与国内电网电压一致。重要的应用场合，应采用不间断电源或稳压电源供电。如果PLC本身带有可使用电源时，应核对提供的电流是否满足应用要求，否则应设计外接供电电源。为防止外部高压电源因误操作而引入PLC，对输入和输出信号的隔离是必要的，有时也可采用简单的二极管或熔丝管隔离。

4.存储器的选择

由于计算机集成芯片技术的发展，存储器的价格已下降，因此，为保证应用项目的正常投运，一般要求PLC的存储器容量，按256个I/O点至少选8K存储器选择。需要复杂控制功能时，应选择容量更大，档次更高的存储器。

 

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ALLEGHENY BRADFORD CORP. STAINLESS STEEL FILTER HOUSING 039907-1-1-4

ALLEGHENY BRADFORD CORP. STAINLESS STEEL FILTER HOUSING K-I-PR-D-001883 7F1

ALLEN BRADLEY 1326AB-B410G-21 SERVO MOTOR 5000RPM 1KW

ALLEN BRADLEY 1492-IFM40-2 WIRING TERMINAL

ALLEN BRADLEY 1494V-DS100 DISCONNECT SWITCH W/HANDLE

ALLEN BRADLEY 1746A10 SER B SLC500 10 SLOT PLC RACK

ALLEN BRADLEY 1746IA8 SLC500 INPUT MODULE 8PT

ALLEN BRADLEY 1747-L532 SLC 500 SER E REV 8 1747-OS302 SER C FRN 6 PROCESSOR UNI

ALLEN BRADLEY 1747-L551/A PROC.REV 1 FRN 5 SLC 500 CPU MODULE 16K MEMORY SLC5/05

ALLEN BRADLEY 1747-L551/A SLC 500 PROC.REV 1 FRN 5 CPU 16K MEMORY SLC5/05

ALLEN BRADLEY 1747SN SLC500 SER B REMOTE I/O SCANNER MODULE

ALLEN BRADLEY 1761 SER B ADVANCED INTERFACE

ALLEN BRADLEY 1761-L16AWA MICROLOGIX 1000 MICRO CONTROLLER

ALLEN BRADLEY 1762-OFA SER B REV C FRN 1.1 4 CH ANALOG OUTPUT MODULE

ALLEN BRADLEY 1768-L43S COMPACTLOGIX L43 SAFETY PROCESSOR

ALLEN BRADLEY 1769-IQ16 SER.A COMPACT I/O 16 CHNL INPUT

ALLEN BRADLEY 1769-IQ32 COMPACT I/O INPUT MODULE 32 POINT SER A REV 3.1

ALLEN BRADLEY 1769-OF2 COMPACT I/O 2 CHNL ANALOG CURRENT/VOLTAGE OUTPUT

ALLEN BRADLEY 1769-OF8V SER.A COMPACT I/O 8 CHNL OUTPUT

ALLEN BRADLEY 1769-PA2 120/240VAC INPUT 2A @ 5VDC OUTPUT POWER SUPPLY

ALLEN BRADLEY 193-EA5EB OVERLOAD RELAY SER B 1.6-5.0A CLASS 20

ALLEN BRADLEY 193-EA5EB SER B OVERLOAD RELAY 1.6-5.0A

ALLEN BRADLEY 193-EEHF OVERLOAD RELAY SER B

ALLEN BRADLEY 194E-Y25-1753-6N SER B 25A ON/OFF LOADSWITCH + ENCLOSURE

ALLEN BRADLEY 2.2KW/3HP VARIABLE SPEED DRIVE 1305-BA06A SER C

ALLEN BRADLEY 24VDC SINK/SOURCE INPUT 1762-1Q16 SER A REV A MISSING DOOR

ALLEN BRADLEY 2711P-K6M20A PANELVIEW PLUS 600 KEYPAD/RS232/ETHERNET/AC

ALLEN BRADLEY 42GRU-9200-QD PHOTOELECTRIC SENSOR

ALLEN BRADLEY 509-AOB SER B AUXILLARY CONTACT 18A 600VAC 3 P

ALLEN BRADLEY 700-CF400ZJ CONTROL RELAY

ALLEN BRADLEY 700-RTC11110U1 SOLID STATE TIMING RELAY TYPE RTC

ALLEN BRADLEY 709 Z-34043 CONTACT KIT SIZE 5 OR 1 P0LE

ALLEN BRADLEY 802B-CSADXSXD4 SER A DOUBLE LIMIT SWITCH

ALLEN BRADLEY 802T-AMT OIL TIGHT LIMIT SWITCH

ALLEN BRADLEY 845H-SJDZ26DRYR1 SER C 8-24V DC 5000 INCREMENTAL ENCODER

ALLEN BRADLEY 845H-SJDZ26DRYR1 SER C 8-24V DC 5000 INCREMENTAL ENCODER

ALLEN BRADLEY 8PT 10.50VDC OUTPUT MODULE 1746OB8

ALLEN BRADLEY ADJUSTABLE FREQUENCY AC DRIVE 1333-AAA SER.C

ALLEN BRADLEY ADVANCED INTERFACE CONVERTER 1761 NET-AIC SER B

ALLEN BRADLEY ANALOG INPUT MODULE 1746-N14 SER A SLC 500

ALLEN BRADLEY COMPACT I/O 16PT 24VDC ELECT-F SOURCING OUTPUT 1769-OB16P

ALLEN BRADLEY CONTACTOR 100-D95 3 POLE 120V COIL 600V MAX 160A ENCLOSED

ALLEN BRADLEY CONTROLLOGIC 8PT A/L MODULE 1756-IF8 SER A

ALLEN BRADLEY DC RELAY 700DC-P1200Z24 SER A

ALLEN BRADLEY GRAVITIY RETURN LIMIT SWITCH NEMA TYPE 1 802G-GP SER J

ALLEN BRADLEY GUARD MASTER MT-GD2 SAFETY INTERLOCK SWITCH

ALLEN BRADLEY GUARD MASTER SAFETY RELAY 440R-N23132 MSR127TP SER C

ALLEN BRADLEY ILLUMINATED RED SELECTOR SWITCH TYPE 4,13 CAT# 800T-16HR2KB6AX

ALLEN BRADLEY INPUT MODULE 1746-ITV16 SER C SLC 500

ALLEN BRADLEY LINE REACTOR TRANSFORMER 1321-3R45-B 3 PHASE 600V 50/60 HZ 45 AMP

ALLEN BRADLEY MEMORY MODULE W/REAL TIME CLOCK 1762-MM1RTC MICROLOGIX 1200

ALLEN BRADLEY MICROLOGIC 1200 16PT 24VDC SOURCE OUTPUT 1762-IQ16

ALLEN BRADLEY MICROLOGIX 1100 1763-L16AWA SER B FW 12 16 PT CONTROLLER

ALLEN BRADLEY MICROLOGIX 172-OW16 16 PT SER A REV A OUTPUT RELAY

ALLEN BRADLEY MICROLOGIX 1762-IA8 SER A REV C 8PT INPUT MODULE

ALLEN BRADLEY OUTPUT MODULE 1746-OW16 SERIES C SLIGHTLY

ALLEN BRADLEY OUTPUT MODULE 1746-OW16 SLC500 SERIES D FACTORY SEALED

ALLEN BRADLEY OUTPUT MODULE SLC500 1746-OA16 SER.B

ALLEN BRADLEY PANELVIEW 1000 2711-T10C9 SER B REV C FRN 3.40

ALLEN BRADLEY POWERFLEX DC TBO-32 I/O EXPANSION BOARD 20P-S5V62

ALLEN BRADLEY PROCESSOR MODULE SLC500 1747-L514 SER.B

ALLEN BRADLEY PROCESSOR UNIT 1747-L511 SER B

ALLEN BRADLEY PROCESSOR UNIT SLC500 1747-L532 SER.D W/KEYS

ALLEN BRADLEY SERIES C CONTACTOR 100-C23*10

ALLEN BRADLEY SLC 500 1746-A10 SER B 10-SLOT RACK W/POWER SUPPLY 1746-P1

ALLEN BRADLEY SLC500 1746-A7 SER.B 13SLOT CHASSIS W/POWER SUPPLY

ALLEN BRADLEY Z-16065 LEVER TYPE HEAD OILTIGHT LIMIT SWITCH

ALLEN BRADLEY* 560U CIRCUIT BREAKER OPERATING ASSEMBLY W/HANDLE & HINGE

ALLEN BRADLEY* INPUT MODULE 1746-ITV16 SER C SLC 500

ALLEN BRADLEY* SLC 500 POWER SUPPLY 1746-P2 SER.C

ALLEN BRADLEY* Z-16065 LEVER TYPE HEAD OILTIGHT LIMIT SWITCH

ALLEN SPECIAL CAP SCREWS SERIES 410 3/4-10 X 1-1/4 QTY.75

ALLENAIR CYLINDER A 1 1/2X8 WR #0115

ALLEN-BRADEY 1761-NET-ENI SER.C FRN 3.01 ETHERNET INTERFACE

ALLEN-BRADLEY * 140M-C2E-B25 SER.A /100-C16*10 MOTOR STARTER

ALLEN-BRADLEY * 1769-OF4CI SER.A REV.2 F/W REV.1.2 4CH ANALOG ISOLATED OUTPUT

ALLEN-BRADLEY * 1772-LWP D MINI-PLC-2/17 PROCESSOR W/ POWER SUPPLY

ALLEN-BRADLEY * POWERFLEX 70 20AD8P0A3AYNNNC0 SER.A 5HP,4kW,3PH,8A,480V AC DRIVE

ALLEN-BRADLEY *1734-ACNR REV.AO1 POINT I/O ADAPTER/1734-232ASC F/WREV3.005

ALLEN-BRADLEY 100-A09ND3 , 104-A09ND3 CONTACTOR W/ 193-BSB 12 OVERLOAD RELAY

ALLEN-BRADLEY 100-C16D*01 SER.B CONTACTOR W/ 100S-F SER.B GUARDMASTER

ALLEN-BRADLEY 100-D95 CONTACTOR SER.B 1000V 160A 600VAC

ALLEN-BRADLEY 1305-BA03A SER.A 380-460V, 2.3A,1HP, 0.75KW VARIABLE SPEED DRIVE

ALLEN-BRADLEY 1321-3R18-C 18 AMP 3 PHASE REACTOR

ALLEN-BRADLEY 1321-3R25-C 25 AMP 3 PHASE REACTOR

ALLEN-BRADLEY 1321-3R35-A 35A,3PH LINE REACTOR

ALLEN-BRADLEY 1321-3R8-A 8A,1.5mH,3PH LINE REACTOR

ALLEN-BRADLEY 1333-YAB SER. B ADJUSTABLE FREQUENCY AC DRIVE

ALLEN-BRADLEY 1336 IMPACT 1336E-BRF75-AA-EN SER.D AC DRIVE

ALLEN-BRADLEY 1336 IMPACT SERIAL NO. 1JAN3QF8 AC DRIVE

ALLEN-BRADLEY 1336E-BRF100-AN-EN SER.D IMPACT DRIVE 3PH 16/20KVA 380/480V 25A

ALLEN-BRADLEY 1336E-BRF50-AA-EN ADJUSTABLE FREQUENCY AC DRIVE 1336 IMPACT

ALLEN-BRADLEY 1336S-AQF100-AA-EN10-L4 SER.D

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