public static bool WritePacket(int DevAddr, int StartReg, int RegCount, byte[] Datas, int DataLength)
{
if (CommByRS232.CommPort.IsOpen == false)
{
MessageBox.Show("端口未打开,请先打开端口!");
return(false);
}
ModBusProc.CreateTxHeader(ref Modbus232, DevAddr, ModBusProc.CmdCode_Write, StartReg, RegCount, Datas, DataLength);
byte[] TxBuffer = new byte[320];
int TxLength = ModBusProc.CreateTxMessage(ref Modbus232, ref TxBuffer);
return(SendData(TxBuffer, TxLength, 8));
}
public static bool ReadPacket(int DevAddr, int StartReg, int RegCount, ref byte[] Datas, ref int DataLength)
{
if (CommByRS232.CommPort.IsOpen == false)
{
MessageBox.Show("端口未打开,请先打开端口!");
return(false);
}
bool R;
ModBusProc.CreateTxHeader(ref Modbus232, DevAddr, ModBusProc.CmdCode_Read, StartReg, RegCount, Datas, 0);
byte[] TxBuffer = new byte[320];
int TxLength = ModBusProc.CreateTxMessage(ref Modbus232, ref TxBuffer);
R = SendData(TxBuffer, TxLength, 5 + RegCount * 2);
if (R == true)
{
Array.Copy(Modbus232.RxMsg.DataBuffer, Datas, Modbus232.RxMsg.DataLenth);
DataLength = Modbus232.RxMsg.DataLenth;
}
return(R);
}
