EX2100 GE 模块

由于485通讯必须设定主从关系，这里是plc控制多台变频器，所以plc必须设置为主，因此还需在初始化代码区增加一个地址和主从设定语句：SetAddress(1,MASTER);事实上，对于主控制器来说，地址已经失去意义。

通讯口已经设置完毕，下面就是如何根据要求将数据发送给变频器。

对FX2系列的PLC与上拉机的通信实现，提出了一种价格低、体积小的接口方案，讨论了其硬件和软件的设计思想，该接口装置与控制室和实验室环境下运行可靠。

关键词：上位机通信接口可编程控制器

Square D Circuit Breaker PCF362500 DC 1680 NIB 48VDC UV

Square D FAL32015 circuit breaker; FA100A enclosure NIB

SQUARE D QOB230 MOLDED CASE 2 POLE 30 AMP BREAKER

Square D QO Double 2 Pole 20A 20 Amp Breaker QO220 U

SQUARE D QOB CIRCUIT BREAKER MG-21

Square D LAL361751121 Circuit Breaker, 175 Amp, 3 Pole

Square "D" 100 Amp Load Center Space for 6 Breakers

square D 2P 20A GFCI 2P 15A EPD bolt on QOB

Square D Circuit Breaker QOB220 HACR 2P 20A 120/240 NEW

Square D Circuit Breaker QOB230 HACR 2P 30A 120/240 NEW

Square D QOB120GFI circuit breaker 1p 20a ground fault

SQUARE D GFM100FA CIRCUIT BREAKER GROUND FAULT LNC

Square D Mag-Gard 400A 600V ac 3 Pole

SQUARE D 20 AMP 1P QOB EPD CIRCUIT BREAKER QOB120EPD

NEW Square D QOB120 Circuit Breaker 20 Amp 1P Bolt-On

SQUARE-D #FY-14020B 20A 277VAC 1P CIRCUIT BRK. R8/S1-2

SQUARE-D #FY-14020C 20A 277VAC 1P CIRCUIT BRK R8/S1-2

SQUARE-D #FY-14030A 30A 277VAC 1P CIRCUIT BRK. R8/S1-2

SQUARE-D #FY-14030B 30A 277VAC 1P CIRCUIT BRK. R8/S1-2

SQUARE-D #FY-14030C 30A 277VAC 1P CIRCUIT BRK. S8/S1-2

SQUARE D FAL34030 30 AMP CIRCUIT BREAKER & OTHERS LOT 4

SQUARE D FAL34030 30 AMP CIRCUIT BREAKER & OTHERS LOT 4

Square D Circuit Breaker, 1 Pole, 30Amp, 240Volt, QO

Square D Circuit Breaker, 1 Pole, 50Amp, 120Volt, QO

Square D Type QO 2-Pole 120/240VAC - 30 Amp Breaker