C# Modbus 之 EasyModbus - 三千世界a

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 public int EasyModbusReadInputRegisters()
            ModbusClient modbusClient = new ModbusClient(_spHelper.ConfigSerialPort.PortName);
                modbusClient.UnitIdentifier = _dcuInfo.siteId;
                modbusClient.Baudrate = _spHelper.ConfigSerialPort.BaudRate;
                modbusClient.Parity = (System.IO.Ports.Parity)_spHelper.ConfigSerialPort.Parity;
                modbusClient.StopBits = (System.IO.Ports.StopBits)_spHelper.ConfigSerialPort.StopBits;
                modbusClient.ConnectionTimeout = 500;
                modbusClient.Connect();
                int[] result = modbusClient.ReadInputRegisters(54, 1);  //地址号
                modbusClient.Disconnect();
                return result[0];
            catch (Exception ex)
                modbusClient.Disconnect();
                return -1;
        public bool EasyWriteMultipleRegisters()
            ModbusClient modbusClient = new ModbusClient(_spHelper.ConfigSerialPort.PortName);
                modbusClient.UnitIdentifier = _dcuInfo.siteId;
                modbusClient.Baudrate = _spHelper.ConfigSerialPort.BaudRate;
                modbusClient.Parity = (System.IO.Ports.Parity)_spHelper.ConfigSerialPort.Parity;
                modbusClient.StopBits = (System.IO.Ports.StopBits)_spHelper.ConfigSerialPort.StopBits;
                modbusClient.ConnectionTimeout = 500;
                modbusClient.Connect();
                int[] registers = new int[] { 3250, 3110 }; //要写的值
                ushort startAddress = 54;  //从某个地址开始写
                modbusClient.WriteMultipleRegisters(startAddress, registers);
                modbusClient.Disconnect();
                return true;
            catch (Exception ex)
                if (modbusClient.Connected)
                    modbusClient.Disconnect();
                return false;