Create a MODBUS RTU instance based on the passed parameters:
/// <summary> /// 建立 MODBUS RTU 串口业务 /// String comnum = 串口号 /// int buad = 串口的波特率 /// int dataLen = 数据长度 /// String chklen = 检验位 /// String stoplen = 停止位 /// </summary> public ModbusRTU_Lib(String comnum,int buad,int dataLen,string chklen,string stoplen,int scantime)
Add a MODBUS RTU scanning slave:
/// <summary> /// 清除所有的从站列表 /// </summary> public void clearAllModbusSalve() /// <summary> /// 删除扫描列表中的指定从站 /// </summary> /// <param name="whichAddr"></param> public void deletAllModbusSalve(int whichAddr)
Clear the MODBUS RTU multi slave scan list created:
/// <summary> /// 增加 MODBUS 从站扫描列表 /// </summary> /// <param name="xDeviceMdEnty"></param> public void addModbusSlaveScanList(DeviceMdEnty xDeviceMdEnty)
Open a communication serial port of MODBUS RTU
/// <summary> /// 打开串口 /// </summary> /// <returns></returns> public Boolean openUartOfModbus()
Close the serial port
/// <summary> /// 关闭串口 /// </summary> /// <returns></returns> public Boolean closeUartOfModbus()
Activate the scheduled scanning service of MODBUS RTU
/// <summary> /// 启动 MODBUS 扫描业务 /// </summary> public void startModbusWork()
Send MODBUS RTU command
发送数据 * int slaveAddr = 从站地址 int addrTe = 读写的启始地址 int cmdTe = 功能码 int lenTe =读出数据长度 byte[] msgBuf = 待写入的数据的缓冲期，每个字占 2BYTE int msgLen = 写入的数据长度 return : * true = 已发送数据，false = 未发送 * *********************************************************************/ /// <summary> /// /// </summary> public Boolean sendModbusMsg(int slaveAddr,int cmdTe, int addrTe, int lenTe, byte[] msgBuf, int msgLen)
The callback method of MODBUS RTU instance returns all data received by the serial port
Result = "E00"；表示"创建串口失败:" Result = "E01"；表示"串口号未设置:" Result = "E02"；表示"停止位参数错误:" Result = "E03"；表示"校验位参数错误:" Result = "F00"；表示"校验位参数错误:" Result = "Y00"；表示"创建串口成功:" Result = "M00"；表示"接收到串口数据:"
Declare the delegation regarding the event, with the parameter being the data type to be returned and the serial port receiving the data
public delegate void ModbusRTU_EventHandler(string result, byte[] msg) ;
The callback method of MODBUS RTU instance, which returns all data received by the serial port and verified by address and checksum
Result = "AE0"；表示"创建串口失败:" Result = "CE0"；表示"串口号未设置:" Result = "DE0"；表示"停止位参数错误:" Result = "D00"；表示"接收到正确解析的串口数据:" Result = "D01"；表示"功能码 0x01--正确应答数据！ :" Result = "D02"；表示"功能码 0x02--正确应答数据 ！" Result = "D03"；表示"功能码 0x03--正确应答数据 ！" Result = "D04"；表示"功能码 0x04--正确应答数据 ！" Result = "D05"；表示"功能码 0x05--正确应答数据 ！" Result = "D06"；表示"功能码 0x06--正确应答数据 ！" Result = "D0F"；表示"功能码 0x0F--正确应答数据 ！" Result = "D10"；表示"功能码 0x10--正确应答数据 ！"
, with parameters of the data type to be returned, serial port receiving data and MODBUS verification
public delegate void ModbusRTU_DecodeHandler(string result, byte[] msg) ;
establishing one List of MODBUS RTU slave stations;
DLL will automatically scan based on the number of devices; For functions that are not available, specify a length of 0; If the 16 in 16 out digital module is used, the input register and hold register length can be specified as 0
/// <summary> /// 建立扫描列表 /// </summary> /// <param name="SlaveAddr">设置当前从站的站号</param> /// <param name="CoilLen">设置当前从站的输出线圈个数</param> /// <param name="DiscLen">设置当前从站的输入数字量个数</param> /// <param name="InputRegLen">设置当前从站的输入寄存器个数</param> /// <param name="HoldingRegLen">设置当前从站的保持寄存器个数</param> public DeviceMdEnty(int SlaveAddr, int CoilLen, int DiscLen, int InputRegLen, int HoldingRegLen)
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