//创建用于485通讯的Modus命令
private static byte[] CreatSerialModbusCommand(byte[] BaseModbusCommand)
{
List <byte> SerialModbusCommand = new List <byte>();
SerialModbusCommand.AddRange(BaseModbusCommand);
byte[] CRCArray = CRCCalculate.CRC_16(BaseModbusCommand);
SerialModbusCommand.AddRange(CRCArray);
return(SerialModbusCommand.ToArray());
}
//校验数据
private COMMUNICATERESULT CheckData(byte[] RecData, byte[] SendData)
{
byte[] myrecdata = new byte[RecData.Length - 2];
Array.Copy(RecData, myrecdata, RecData.Length - 2);
byte[] CRC = CRCCalculate.CRC_16(myrecdata);
if (RecData[RecData.Length - 1] != CRC[1] || RecData[RecData.Length - 2] != CRC[0])
{
return(COMMUNICATERESULT.DataCheckFail);
}
if (RecData[0] != SendData[1])
{
return(COMMUNICATERESULT.FailUnitID);
}
if (RecData[1] != SendData[2])
{
if ((RecData[1] & 0x8) == 0)
{
return(COMMUNICATERESULT.UnknownFunCode);
}
else
{
switch (RecData[2])
{
case 1:
return(COMMUNICATERESULT.UnknownFunCode);
case 2:
return(COMMUNICATERESULT.DataAddrInvalid);
case 3:
return(COMMUNICATERESULT.DataValueInvalid);
case 4:
return(COMMUNICATERESULT.SeverErr);
case 5:
return(COMMUNICATERESULT.ServerDelayOK);
case 6:
return(COMMUNICATERESULT.ServerBusy);
case 10:
return(COMMUNICATERESULT.GateWayFault_RoutingErr);
case 11:
return(COMMUNICATERESULT.GateWayFault_Noresponse);
default:
break;
}
}
}
return(COMMUNICATERESULT.OK);
}
