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  • I am trying to simulate an TCP Modbus slave.

    I extended the class TcpSlave for this and added some Process Images.

    Unfortunately, the TcpSlave provides only the port to set.

    How can I set the IP Address of the slave ?

    I tried to add the following code snippet in TcpSlave but it doesn't help :

        public void start() throws ModbusInitException {
            try {
                serverSocket = new ServerSocket(port);
               //Socket socket;
              //this should be the ip address of the slave
               Socket socket = new Socket("", 502);
                while (true) {
                    socket = serverSocket.accept();
                    TcpConnectionHandler handler = new TcpConnectionHandler(socket);

    Can someone help me ?