Modbus协议
<p>[TOC]</p>
<h3>一、Modbus协议基础知识</h3>
<h5>1.1 Modbus协议发展史</h5>
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<h5>1.2 Modbus调试软件</h5>
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<h5>1.3 Modbus协议存储区说明</h5>
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<h5>1.4 Modbus功能码说明</h5>
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<h5>1.5 Modbus协议的分类及测试</h5>
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<h3>二、ModbusRTU通信报文分析</h3>
<h3>三、ModbusRTU通讯库开发</h3>
<h3>四、多路温湿度采集项目案例</h3>
<h3>五、ModbusTCP通信报文分析</h3>
<h5>5.1 ModbusTCP通信格式说明</h5>
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<h5>5.2 读取输入输出线圈</h5>
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<h5>5.3 读取输入输出寄存器</h5>
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<h5>5.4 预置单线圈寄存器</h5>
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<h5>5.5 预置多线圈寄存器</h5>
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<h3>六、ModbusTCP通讯库编写</h3>
<h3>七、ModbusTCP与西门子PLC通信</h3>