easy modbus tcp

public static void Main(string[] args)         {             ModbusClient modbusClient = new ModbusClient("190.201.100.100", 502);    //Ip-Address and Port of Modbus-TCP-Server             modbusClient.Connect();                                                    //Connect to Server             modbusClient.WriteMultipleCoils(4, new bool[] {true, true, true, true, true, true, true, true, true, true});    //Write Coils starting with Address 5             bool[] readCoils = modbusClient.ReadCoils(9,10);                        //Read 10 Coils from Server, starting with address 10             int[] readHoldingRegisters = modbusClient.ReadHoldingRegisters(0,10);    //Read 10 Holding Registers from Server, starting with Address 1               // Console Output             for (int i = 0; i < readCoils.Length; i++)                 Console.WriteLine("Value of Coil " + (9 + i + 1) + " " + readCoils[i].ToString());                                      for (int i = 0; i < readHoldingRegisters.Length; i++)                 Console.WriteLine("Value of HoldingRegister " + (i + 1) + " "+ readHoldingRegisters[i].ToString());                         modbusClient.Disconnect();                                                //Disconnect from Server             Console.Write("Press any key to continue . . . ");             Console.ReadKey(true);         }     }