easymodbus串口模式调试测试

easymodbus串口模式调试测试

public int EasyModbusReadInputRegisters()
        {
            ModbusClient modbusClient = new ModbusClient(_spHelper.ConfigSerialPort.PortName);
            try
            {
                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);  //PLC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);
            try
            {
                modbusClient.UnitIdentifier = _dcuInfo.siteId; //从机地址，0x01,0x02
                modbusClient.Baudrate = _spHelper.ConfigSerialPort.BaudRate;//波特率
                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;  //PLC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;
            }
            
        }