Capture Exceptions.

[Jeremy]

Hi there

Was wondering a good way to capture exceptions. what i mean is.
i get error
"No connection could be made because the target machine actively refused it"
or
"Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host."

Want a way to capture it/prvent the exception.

this is my current code

try
                {
                    if (!_modBus.Connected)
                    {
                        _modBus.Connect();
                    }
                    //add 1 to the value
                    int[] numArray = _modBus.ReadHoldingRegisters(4372, 1);
                    int[] numArray2 = _modBus.ReadHoldingRegisters(4275, 1); //Battery Volts (4276)
                    int[] numArray3 = _modBus.ReadHoldingRegisters(4108, 1); //Net AMps (4109)
                    int[] numArray4 = _modBus.ReadHoldingRegisters(4376, 1); //PV Volts (4377)
                    int[] numArray6 = _modBus.ReadHoldingRegisters(4370, 1); //Whizbang Amps (4370)
                    int[] numArray7 = _modBus.ReadHoldingRegisters(4116, 1); //Charging Amps (4116)
                    int[] numArray8 = _modBus.ReadHoldingRegisters(4120, 1); //PV Amps (4121)
                    int[] numArray9 = _modBus.ReadHoldingRegisters(4118, 1); //Battery Watts (4119)
                    int[] numArray10 = _modBus.ReadHoldingRegisters(4115, 1); //PV Volts (4116)
                    int[] numArray11 = _modBus.ReadHoldingRegisters(4132, 1); //FET Temp (4133)
                    int[] numArray12 = _modBus.ReadHoldingRegisters(4133, 1); //PCB Temp (4133)
                    int[] numArray13 = _modBus.ReadHoldingRegisters(4101, 1); //Firmware Date (4102)
                    int[] numArray14 = _modBus.ReadHoldingRegisters(4102, 1); //Firmware Version (4103)
                    int[] numArray15 = _modBus.ReadHoldingRegisters(4119, 1); //Charge State (4120)
                    int[] numArray16 = _modBus.ReadHoldingRegisters(4100, 1); //Charge State (4101)
                    _modBus.ReadHoldingRegisters(4132, 1);
                    _modBus.ReadHoldingRegisters(4133, 1);
                    int[] numArray5 = _modBus.ReadHoldingRegisters(4131, 1); //Battery Temp (4132)

                    _modBus.Disconnect();

                    if (numArray[0] > 0)
                    {
                        _modBus.ReadHoldingRegisters(4372, 1);

                        GlobalVar.Midnite_Classic_soc = Convert.ToString(numArray[0]);
                        GlobalVar.Midnite_Classic_neta = Convert.ToString(numArray3[0]);
                        GlobalVar.Midnite_Classic_rea = Convert.ToString(numArray4[0]);
                        GlobalVar.Midnite_Classic_battemp = Convert.ToString(Convert.ToDecimal(numArray5[0]) / 10M);
                        GlobalVar.Midnite_Classic_v = Convert.ToString(Convert.ToDecimal(numArray2[0]) / 10M);
                        GlobalVar.Midnite_Classic_amps_Whizbang = Convert.ToString(Convert.ToDecimal(numArray6[0]) / 10M);
                        GlobalVar.Midnite_Classic_amps = Convert.ToString(Convert.ToDecimal(numArray7[0]) / 10M);
                        GlobalVar.Midnite_Classic_pa = Convert.ToDecimal(numArray8[0]) / 10M;
                        GlobalVar.Midnite_Classic_watts = Convert.ToDecimal(numArray9[0]);
                        GlobalVar.Midnite_Classic_pv = Convert.ToDecimal(Convert.ToString(numArray10[0])) / 10M;
                        GlobalVar.Midnite_Classic_FETtemp = Convert.ToString(Convert.ToDecimal(Convert.ToString(numArray11[0])) / 10M);
                        GlobalVar.Midnite_Classic_temp = Convert.ToString(Convert.ToDecimal(Convert.ToString(numArray12[0])) / 10M);
                        GlobalVar.Midnite_Classic_fw = Convert.ToString(numArray13[0]) + Convert.ToString(numArray14[0]);

                        ushort value = Convert.ToUInt16(numArray15[0]);
                        byte lsb = (byte)(value & 0xFFu);
                        byte msb = (byte)((value >> 8) & 0xFFu);

                        GlobalVar.Midnite_Classic_ChargeStatus = msb.ToString();

                        value = Convert.ToUInt16(numArray16[0]);
                        lsb = (byte)(value & 0xFFu);
                        GlobalVar.Midnite_Classic_type = lsb.ToString();

                        loadclassic();
                    }
                }
                catch ( IOException exception1)
                {
                    oErrorLog.WriteErrorLog("Classic", "Error", "ClassicConnect1: Line: " + exception1.LineNumber() + " - " + exception1.Message);
                }
            }

[Rossmann Engineering]

Hi,
i am not sure if I understood what you mean. There is no way to avoid that an exception will be thrown in case of an unreachable server.
What you could do is disconnecting in a finally block, and trying to reconnect and read the data again in a loop until the server is back on.
Stefan