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Comments (4)

TurkeyMan avatar TurkeyMan commented on July 3, 2024

I just came here intending to log this bug. I use ethernet serial servers, so I need RTU over TCP, which isn't an option here it seems...?

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HerrPausL avatar HerrPausL commented on July 3, 2024

Hi, please give me a little bit time to check my source - i was abel to use RTU over TCP :-)

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HerrPausL avatar HerrPausL commented on July 3, 2024

This is my code which is working fine :-)

      private void btnConnect_Click(object sender, EventArgs e)
        {
            if (radioButtonRTU.Checked)
            {
                //_uart = new SerialPort(PortName, Baud, Parity, DataBits, StopBits);
                _uart = new SerialPort(PortName, 115200, Parity.None, 8, StopBits.One);
                _uart.Open();
                _portClient = _uart.GetClient();
                _driver = new ModbusClient(new ModbusRtuCodec()) { Address = SlaveId };
                _driver.OutgoingData += DriverOutgoingData;
                _driver.IncommingData += DriverIncommingData;
            }
            if (radioButtonRTUTCP.Checked)
            {
                try
                {
                    _socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                    _socket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, true);
                    _socket.SendTimeout = 2000;
                    _socket.ReceiveTimeout = 2000;
                    _socket.Connect(new IPEndPoint(IPAddress, 502));
                    _portClient = _socket.GetClient();
                    _driver = new ModbusClient(new ModbusRtuCodec()) { Address = SlaveId };
                    _driver.OutgoingData += DriverOutgoingData;
                    _driver.IncommingData += DriverIncommingData;
                    AppendLog(String.Format("Connected using RTUoverTCP to {0}", _socket.RemoteEndPoint));
                    ConnectionState = 1;
                }
                catch (Exception ex)
                {
                    ConnectionState = 0;
                    AppendLog(ex.ToString());
                }
            }

            if (ConnectionState > 0)
            {
                btnConnect.Enabled = false;
                btnDisconnect.Enabled = true;

                ReadCoil();
                ReadInput();
            }
        }

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TurkeyMan avatar TurkeyMan commented on July 3, 2024

Maybe make a PR and get it in the next release?

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