312A6089P001 替您省钱 货期火速

6AV6 648-0CC11-3AXO
1762-IF2OF2
1794-OW8
22-COMM-D
1784-CF64
PMU-K2
1746-OB16
1746-OA16
140CPS12420
PCI-6025E
CJ1W-B7A22
S8VK-G24024
IC200MDL940E
SHC68-68-PM

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描述

RS485的连线可以是一对或两对导线。根据用途来决定连线的方法,本设计采用的是两对导线连接方式。

为了建立PLC与组太王的通信连接,可以在PLC编程软件的菜单“PLC/串行口设置”中设置通信地址和通信参数,也可以在软件中直接用编程(MOV指令)来实现,按RS485规定具体设置是:

波特率设为9600bit/s,数据位设为7位,l位起始位,2位停止位,偶校验,采用协议1。用编程软件设置,其中在D8121中设置通信地址。

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