汇川PLC通信手册(H2u系列).pdf

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1、H1u/H2u系列PLC通信手册概述..................................................................................................................................................31.硬件及通信连线..............................................................................

2、.........................................32.HC2u通信协议切换逻辑说明................................................................................................42.1COM0协议切换逻辑....................................................................................

3、...............42.2COM1协议切换逻辑...................................................................................................42.3串口通信格式设置.......................................................................................................52.4串口通信格

4、式设置软元件一览表...............................................................................63.通信协议说明...........................................................................................................................73.1监控协议........................

5、...............................................................................................73.2并联协议.......................................................................................................................73.3N:N协议.....................

6、..................................................................................................93.4计算机链接协议.........................................................................................................103.5RS指令.............................

7、..........................................................................................103.6MODBUS从站协议...................................................................................................103.7MODBUS指令...................................

8、........................................................................11附件1：..........................................................................................................................................15H1u/H2u系列PLCMODBUS