private void GetParametersWriteInfo(
IEnumerable <WriteParameter> parameters, out Dictionary <byte, SlaveWriteInfo> infos)
{
infos = new Dictionary <byte, SlaveWriteInfo>();
int index = -1;
foreach (WriteParameter parameter in parameters)
{
++index;
var regex = new Regex(DevicePattern);
Match match = regex.Match(parameter.Address);
if (!match.Success)
{
throw new Exception(parameter.Address + " is not a valid device address");
}
#region Get slave address
byte slaveAddress = _defaultAddress;
string match1 = match.Groups[1].ToString();
if (!string.IsNullOrEmpty(match1) && match1.Length > 1)
{
int i;
if (int.TryParse(match1.Substring(0, match1.Length - 1), out i))
{
if (i >= byte.MinValue && i <= byte.MaxValue)
{
slaveAddress = (byte)i;
}
else
{
throw new Exception(parameter.Address + ": slave address incorrect");
}
}
}
#endregion Get slave address
#region Get device address
ushort deviceAddress;
if (!ushort.TryParse(match.Groups[3].ToString(), out deviceAddress) || deviceAddress == 0)
{
throw new Exception(parameter.Address + ": device index not supported");
}
deviceAddress -= 1;
string match2 = match.Groups[2].ToString();
int? length;
if (parameter.Value is bool)
{
if (match2 != "0" && match2 != "1")
{
throw new Exception("Type " + parameter.Value.GetType().Name +
" is not supported for " + parameter.Address);
}
length = 1;
}
else
{
if (match2 != "3" && match2 != "4")
{
throw new Exception("Type " + parameter.Value.GetType().Name +
" is not supported for " + parameter.Address);
}
length = TypeToRegistersCount(parameter.Value.GetType());
if (length == null)
{
throw new Exception("Type " + parameter.Value.GetType().Name +
" is not supported for " + parameter.Address);
}
}
#endregion Get device address
#region Check device index
int deviceLength = length.Value;
if (deviceLength + deviceAddress - 1 > ushort.MaxValue)
{
throw new Exception(parameter.Address + ": device index is out of range");
}
#endregion Check device index
#region WriteInfo
SlaveWriteInfo writeInfo;
if (!infos.TryGetValue(slaveAddress, out writeInfo))
{
writeInfo = new SlaveWriteInfo();
infos.Add(slaveAddress, writeInfo);
}
#endregion WriteInfo
#region Fill WriteInfo
switch (match2)
{
case "0":
var coil = new CoilWriteInfo {
Address = deviceAddress,
Index = index,
WriteParameter = parameter
};
writeInfo.Coils.Add(coil);
break;
case "4":
var hr = new HoldingRegisterWriteInfo {
Address = new KeyValuePair <ushort, int>(deviceAddress, deviceLength),
Index = index,
WriteParameter = parameter
};
writeInfo.HoldingRegisters.Add(hr);
break;
}
#endregion Fill WriteInfo
}
}
public void WriteOnce(WriteParameter[] writeParameters)
{
if (writeParameters == null)
{
return;
}
var result = new bool[writeParameters.Count()];
Dictionary <byte, SlaveWriteInfo> writeInfos;
GetParametersWriteInfo(writeParameters, out writeInfos);
foreach (var slaveWriteInfo in writeInfos)
{
byte slaveAddress = slaveWriteInfo.Key;
SlaveWriteInfo writeInfo = slaveWriteInfo.Value;
SortWriteInfoDevices(writeInfo);
for (var i = 0; i < writeInfo.Coils.Count; ++i)
{
CoilWriteInfo coil = writeInfo.Coils[i];
ushort address = coil.Address;
const int maxLength = MaxWriteBytesLength * 8;
var bools = new List <bool>(maxLength)
{
coil.WriteParameter.Value as bool? == true
};
for (var j = 1; j < maxLength && i + j < writeInfo.Coils.Count; ++j)
{
CoilWriteInfo c = writeInfo.Coils[i + j];
if (c.Address == address + j)
{
bools.Add(c.WriteParameter.Value as bool? == true);
}
else
{
break;
}
}
if (_mb.WriteCoils(slaveAddress, address, BoolsToBytes(bools), bools.Count))
{
for (int j = i; j < bools.Count + i; ++j)
{
result[writeInfo.Coils[j].Index] = true;
}
}
i += bools.Count - 1;
}
for (var i = 0; i < writeInfo.HoldingRegisters.Count; ++i)
{
HoldingRegisterWriteInfo hr = writeInfo.HoldingRegisters[i];
var address = hr.Address;
const int maxLength = MaxWriteBytesLength / 2;
var bytes = new byte[MaxWriteBytesLength];
int length = address.Value;
var valueBytes = GetBytes(hr.WriteParameter.Value);
valueBytes = _bytesToRegistersConverter.GetBytes(valueBytes, 0, hr.Address.Value);
for (var j = 0; j < valueBytes.Length; ++j)
{
bytes[j] = valueBytes[j];
}
int oldI = i;
for (var j = 1; i + j < writeInfo.HoldingRegisters.Count; ++j)
{
HoldingRegisterWriteInfo h = writeInfo.HoldingRegisters[i + j];
if (h.Address.Key <= address.Key + length)
{
int newLength = h.Address.Key + h.Address.Value - address.Key;
if (newLength < maxLength)
{
var vBytes = GetBytes(h.WriteParameter.Value);
vBytes = _bytesToRegistersConverter.GetBytes(vBytes, 0, h.Address.Value);
for (var k = 0; k < vBytes.Length; ++k)
{
bytes[k + (h.Address.Key - address.Key) * 2] = vBytes[k];
}
if (newLength > length)
{
length = newLength;
}
++i;
continue;
}
}
break;
}
var byteList = new List <byte>(length * 2);
for (var j = 0; j < length * 2; ++j)
{
byteList.Add(bytes[j]);
}
if (_mb.WriteHoldingRegisters(slaveAddress, address.Key, byteList, length))
{
for (int j = oldI; j <= i; ++j)
{
result[writeInfo.HoldingRegisters[j].Index] = true;
}
}
}
}
}