Arduino Modbus Slave rtu 通讯例程说明文档.pdf

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1、Ver.0.9Writtenby:T.W.ShillingWrittenOn:6MAR20121ContentsPREFACE..........................................................................................................................................5DISCLAIMER..........................................

2、...........................................................................................61.MODBUSPROTOCOL...............................................................................................................71.1.SlaveAddress..................

3、..............................................................................................71.2.Function........................................................................................................................71.3.Address...............

4、..........................................................................................................81.4.Data...............................................................................................................................81.5.CRC....

5、............................................................................................................................82.Hardware.......................................................................................................................

6、.........92.1.Pins................................................................................................................................92.1.1.DigitalI/Os..........................................................................................

7、..........................92.1.2.AnalogInputs..............................................................................................................102.1.3.AnalogOutputs(PWM).........................................................................

8、.....................103.ArduinoSketchandRequiredLibraries................................................................................113.1.SettingupyourComputerEnvironment..............................................