public override ModbusTCPMessage Process(IMemoryModel memory)
{
int address = Int16Extensions.FromBytes(PDU.Data.First(), PDU.Data.Skip(1).First());
int length = Int16Extensions.FromBytes(PDU.Data.Skip(2).First(), PDU.Data.Skip(3).First());
try
{
var values = memory.Read4x(address, length);
ProtocolDataUnit pdu = PDU.ValidResponse(
new byte[]
{ (byte)(values.Count() * 2) }
.Concat(values.SelectMany(v => v.GetBytes())));
ModbusTCPMessage reply = Create(
MBAP.Create((byte)(pdu.GetBytes().Count() + 1), ApplicationHeader.UnitID),
pdu);
return(reply);
}
catch
{
ProtocolDataUnit pdu = PDU.ErrorResponse(new byte[] { 0x01 });
ModbusTCPMessage reply = Create(
MBAP.Create((byte)(pdu.GetBytes().Count() + 1), ApplicationHeader.UnitID),
pdu);
return(reply);
}
}
public MBTCPServer(IPAddress address, int port, IMemoryModel memoryModel)
{
_listener = new ConnectionListener(address, port);
_listener.OnConnectionAccepted += _listener_OnConnectionAccepted;
_receiveDataTask = _listener.StartAsync();
_memoryModel = memoryModel;
Status = ServerStatus.Connected;
}
public override ModbusTCPMessage Process(IMemoryModel memory)
{
try
{
int address = StartAddress();
var values = ParseValues();
memory.Write4x(address, values);
var pdu = PDU.ValidResponse(((Int16)values.Count()).GetBytes());
var reply = Create(
MBAP.Create((byte)(pdu.GetBytes().Count() + 1), ApplicationHeader.UnitID),
pdu);
return(reply);
}
catch
{
var pdu = PDU.ErrorResponse(new byte[] { 0x01 });
ModbusTCPMessage reply = Create(
MBAP.Create((byte)(pdu.GetBytes().Count() + 1), ApplicationHeader.UnitID),
pdu);
return(reply);
}
}
private void setMemoryModel(string mm)
{
memoryModel = MemoryModels.GetMemoryModel(mm);
}
public virtual ModbusTCPMessage Process(IMemoryModel memory)
{
return(this);
}
