private ModbusRequest SendWrite(ModbusPackage package, ModbusFunctions functionCode, bool isInternal)
{
ModbusRequest request = null;
if (package.CountVariables > 0)
{
request = new ModbusRequest();
request.IsInternal = isInternal;
request.MBAPHeader.TransactionId = GetTransactionId();
request.MBAPHeader.Length = 0;
request.MBAPHeader.UnitId = UnitId;
request.PDU.FunctionCode = functionCode;
List <byte> pdu = new List <byte>();
pdu.AddRange(BitConverter.GetBytes(Convert.ToUInt16(package.StartRegister)).Reverse());
pdu.AddRange(BitConverter.GetBytes(Convert.ToUInt16(package.CountRegisters)).Reverse());
switch (functionCode)
{
case ModbusFunctions.ForceSingleCoil:
case ModbusFunctions.PresetSingleRegister:
request.MBAPHeader.Length = 6;
break;
case ModbusFunctions.ForceMultipleCoils:
case ModbusFunctions.PresetMultipleRegisters:
pdu.Add(Convert.ToByte(package.SizeInBytes));
pdu.AddRange(package.GetData());
request.MBAPHeader.Length = (ushort)(pdu.Count + 2);
break;
}
request.PDU.Data = pdu.ToArray();
}
return(request);
}
private void SEDevice_VariableValueChanged(IVariable variable)
{
ModbusPackage package = packages.FirstOrDefault(x => x.Contains(variable)).PackageVariable(variable);
var request = helper.SendPresetMultipleRegisters(package, false);
request.PackageId = -1;
if (!SendRequest(request))
{
lock (lockerRequestes)
{
requestes.Remove(request);
}
}
}
private ModbusRequest SendRead(ModbusPackage package, ModbusFunctions functionCode, bool isInternal)
{
ModbusRequest request = null;
if (package.CountVariables > 0)
{
request = new ModbusRequest();
request.IsInternal = isInternal;
request.MBAPHeader.TransactionId = GetTransactionId();
request.MBAPHeader.Length = 6;
request.MBAPHeader.UnitId = UnitId;
request.PDU.FunctionCode = functionCode;
request.PDU.Data = new byte[4];
ConvertingToBytes(package.StartRegister, request.PDU.Data, 0);
ConvertingToBytes(package.CountRegisters, request.PDU.Data, 2);
}
return(request);
}
public ModbusPackage[] PackagingVariables(IVariable[] variables)
{
List <ModbusPackage> packages = new List <ModbusPackage>();
ModbusPackage currentPackage = new ModbusPackage();
var sortedVariables = variables.OrderBy(x => (x.Address as ModbusAddress).StartIndex);
foreach (var variable in sortedVariables)
{
if (!currentPackage.Add(variable))
{
packages.Add(currentPackage);
currentPackage = new ModbusPackage();
currentPackage.Add(variable);
}
}
if (currentPackage.CountVariables > 0)
{
packages.Add(currentPackage);
}
return(packages.ToArray());
}
public ModbusRequest SendPresetMultipleRegisters(ModbusPackage package, bool isInternal)
{
return(SendWrite(package, ModbusFunctions.PresetMultipleRegisters, isInternal));
}
public ModbusRequest SendForceMultipleCoils(ModbusPackage package, bool isInternal)
{
return(SendWrite(package, ModbusFunctions.ForceMultipleCoils, isInternal));
}
public ModbusRequest SendPresetSingleRegister(ModbusPackage package, bool isInternal)
{
throw new NotSupportedException("Данная функция 'PresetSingleRegister' не поддерживается этой версией приложения!");
}
public ModbusRequest SendForceSingleCoil(ModbusPackage package, bool isInternal)
{
throw new NotSupportedException("Данная функция 'ForceSingleCoil' не поддерживается этой версией приложения!");
}
public ModbusRequest SendReadInputRegisters(ModbusPackage package, bool isInternal)
{
return(SendRead(package, ModbusFunctions.ReadInputRegisters, isInternal));
}
public ModbusRequest SendReadInputStatus(ModbusPackage package, bool isInternal)
{
throw new NotSupportedException("Данная функция 'ReadInputStatus' не поддерживается этой версией приложения!");
}
