bool WriteModbusData(modbusrtu ModbusRtu, byte SlaveAddr, ushort ModbusAddr, string datatype, string sValue)
{
ushort ntype = (ushort)(ModbusAddr / 10000);
ushort naddr = (ushort)(ModbusAddr % 10000);
bool bok = false;
naddr = (ushort)(naddr - 1);
switch (ntype)
{
case 0: //DO
short[] coils = new short[1];
if (sValue.Equals("1"))
{
coils[0] = 1;
}
else
{
coils[0] = 0;
}
bok = ModbusRtu.SendFc5(SlaveAddr, naddr, coils[0]);
break;
case 4: //AO
if (datatype.Equals("uint16"))
{
ushort[] registerhold = new ushort[1];
registerhold[0] = ushort.Parse(sValue);
bok = ModbusRtu.SendFc16(SlaveAddr, naddr, 1, registerhold);
}
else if (datatype.Equals("int16"))
{
ushort[] registerhold = new ushort[1];
registerhold[0] = (ushort)short.Parse(sValue);
bok = ModbusRtu.SendFc16(SlaveAddr, naddr, 1, registerhold);
}
else if (datatype.Equals("float"))
{
ushort[] registerhold = new ushort[2];
int intValue = int.Parse(sValue);
registerhold[1] = (ushort)(intValue >> 16);
registerhold[0] = (ushort)intValue;
bok = ModbusRtu.SendFc16(SlaveAddr, naddr, 2, registerhold);
}
else if (datatype.Equals("uint32"))
{
ushort[] registerhold = new ushort[2];
int intValue = int.Parse(sValue);
registerhold[1] = (ushort)(intValue >> 16);
registerhold[0] = (ushort)intValue;
bok = ModbusRtu.SendFc16(SlaveAddr, naddr, 2, registerhold);
}
else if (datatype.Equals("int32"))
{
ushort[] registerhold = new ushort[2];
int intValue = int.Parse(sValue);
registerhold[1] = (ushort)(intValue >> 16);
registerhold[0] = (ushort)intValue;
bok = ModbusRtu.SendFc16(SlaveAddr, naddr, 2, registerhold);
}
break;
}
return(bok);
}
void ReadModbusData(modbusrtu ModbusRtu, byte SlaveAddr, ushort ModbusAddr, DataType datatype, ushort nNumber, ref string[] sValue)
{
ushort ntype = (ushort)((ModbusAddr / 10000));
ushort naddr = (ushort)((ModbusAddr % 10000));
naddr = (ushort)(naddr - 1);
switch (ntype)
{
case 0: //DO
ushort[] coils = new ushort[nNumber];
bool bcoils = ModbusRtu.SendFc1(SlaveAddr, naddr, nNumber, ref coils);
if (bcoils)
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = coils[i].ToString();
}
}
else
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = "0";
}
}
break;
case 1: //DI
ushort[] dis = new ushort[nNumber];
bool bdis = ModbusRtu.SendFc2(SlaveAddr, naddr, nNumber, ref dis);
if (bdis)
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = dis[i].ToString();
}
}
else
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = "0";
}
}
break;
case 4: //AO
if (datatype.ToString().Equals("uint16"))
{
ushort[] registerhold = new ushort[nNumber];
bool bhold = ModbusRtu.SendFc3(SlaveAddr, naddr, nNumber, ref registerhold);
if (bhold)
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = registerhold[i].ToString();
}
}
else
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = "0";
}
}
}
else if (datatype.ToString().Equals("int16"))
{
ushort[] registerhold = new ushort[nNumber];
bool bhold = ModbusRtu.SendFc3(SlaveAddr, naddr, nNumber, ref registerhold);
if (bhold)
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = ((short)registerhold[i]).ToString();
}
}
else
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = "0";
}
}
}
else if (datatype.ToString().Equals("float"))
{
ushort[] registerhold = new ushort[2 * nNumber];
bool bhold = ModbusRtu.SendFc3(SlaveAddr, naddr, (ushort)(2 * nNumber), ref registerhold);
if (bhold)
{
for (int i = 0; i < nNumber; i++)
{
int intValue = (int)registerhold[i * 2 + 1];
intValue <<= 16;
intValue += (int)registerhold[i * 2 + 0];
sValue[i] = BitConverter.ToSingle(BitConverter.GetBytes(intValue), 0).ToString();
}
}
else
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = "0";
}
}
}
else if (datatype.ToString().Equals("int32"))
{
ushort[] registerhold = new ushort[2 * nNumber];
bool bhold = ModbusRtu.SendFc3(SlaveAddr, naddr, (ushort)(2 * nNumber), ref registerhold);
if (bhold)
{
for (int i = 0; i < nNumber; i++)
{
int intValue = (int)registerhold[2 * i + 1];
intValue <<= 16;
intValue += (int)registerhold[2 * i + 0];
sValue[i] = intValue.ToString();
}
}
else
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = "0";
}
}
}
else if (datatype.ToString().Equals("uint32"))
{
ushort[] registerhold = new ushort[2 * nNumber];
bool bhold = ModbusRtu.SendFc3(SlaveAddr, naddr, (ushort)(2 * nNumber), ref registerhold);
if (bhold)
{
for (int i = 0; i < nNumber; i++)
{
UInt32 intValue = (UInt32)registerhold[2 * i + 1];
intValue <<= 16;
intValue += (UInt32)registerhold[2 * i + 0];
sValue[i] = intValue.ToString();
}
}
else
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = "0";
}
}
}
break;
case 3: //AI
if (datatype.ToString().Equals("uint16"))
{
ushort[] registerinput = new ushort[nNumber];
bool binput = ModbusRtu.SendFc4(SlaveAddr, naddr, nNumber, ref registerinput);
if (binput)
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = registerinput[i].ToString();
}
}
else
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = "0";
}
}
}
else if (datatype.ToString().Equals("int16"))
{
ushort[] registerinput = new ushort[nNumber];
bool binput = ModbusRtu.SendFc4(SlaveAddr, naddr, nNumber, ref registerinput);
if (binput)
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = ((short)registerinput[i]).ToString();
}
}
else
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = "0";
}
}
}
else if (datatype.ToString().Equals("float"))
{
ushort[] registerinput = new ushort[2 * nNumber];
bool binput = ModbusRtu.SendFc4(SlaveAddr, naddr, (ushort)(2 * nNumber), ref registerinput);
if (binput)
{
for (int i = 0; i < nNumber; i++)
{
int intValue = (int)registerinput[2 * i + 1];
intValue <<= 16;
intValue += (int)registerinput[2 * i + 0];
sValue[i] = BitConverter.ToSingle(BitConverter.GetBytes(intValue), 0).ToString();
}
}
else
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = "0";
}
}
}
else if (datatype.ToString().Equals("int32"))
{
ushort[] registerinput = new ushort[2 * nNumber];
bool binput = ModbusRtu.SendFc4(SlaveAddr, naddr, (ushort)(2 * nNumber), ref registerinput);
if (binput)
{
for (int i = 0; i < nNumber; i++)
{
int intValue = (int)registerinput[2 * i + 1];
intValue <<= 16;
intValue += (int)registerinput[2 * i + 0];
sValue[i] = intValue.ToString();
}
}
else
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = "0";
}
}
}
else if (datatype.ToString().Equals("uint32"))
{
ushort[] registerinput = new ushort[2 * nNumber];
bool binput = ModbusRtu.SendFc4(SlaveAddr, naddr, (ushort)(2 * nNumber), ref registerinput);
if (binput)
{
for (int i = 0; i < nNumber; i++)
{
UInt32 intValue = (UInt32)registerinput[2 * i + 1];
intValue <<= 16;
intValue += (UInt32)registerinput[2 * i + 0];
sValue[i] = intValue.ToString();
}
}
else
{
for (int i = 0; i < nNumber; i++)
{
sValue[i] = "0";
}
}
}
break;
}
}
