Modbus 远程 I/O 通讯模块 RTU-485
DVP-PLC 操作手册
1
注意事项
3 此操作手册提供功能规格、安装、基本操作与设定,以及有关于网络协议内容的介绍。
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或意外冲击本体,造成危险及损坏,且请勿在上电时触摸任何端子。
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目录
1 RTU-485 简介 .......................................................................................................................................2
1.1 RTU-485 功能简介 ......................................................................................................................2
1.2 功能规格......................................................................................................................................2
2 RTU-485 单元部件 ...............................................................................................................................3
2.1 外观尺寸......................................................................................................................................3
2.2 各部介绍......................................................................................................................................3
2.3 RUN/STOP 开关..........................................................................................................................3
2.4 地址设定开关...............................................................................................................................4
2.5 通讯设定开关...............................................................................................................................4
3 RTU-485 基本操作 ................................................................................................................................5
3.1 安装 RTU-485 与 Slim I/O 模块 ...................................................................................................5
3.2 安装 RTU-485 及其 Slim I/O 模块于导轨 .....................................................................................5
4 功能区域说明 ........................................................................................................................................5
4.1 数字输入/输出模块区域 ...............................................................................................................5
4.2 特殊输入/输出模块区域 ...............................................................................................................6
4.3 特殊功能区域...............................................................................................................................6
4.4 RTU-485 错误代码说明 ...............................................................................................................7
5 RTU-485 支持的功能码 .........................................................................................................................7
6 RTU-485 应用范例 ...............................................................................................................................7
6.1 RTU-485 与主控设备连接............................................................................................................7
6.2 应用范例......................................................................................................................................8
7 LED 灯指示说明及故障排除................................................................................................................10
7.1 POWER 灯显示说明..................................................................................................................10
7.2 RUN LED 灯显示说明................................................................................................................10
7.3 ALARM LED 灯显示说明 ...........................................................................................................10
7.4 RS-485 LED 灯显示说明 ...........................................................................................................10