Question

我正在开发Windows窗体以用作Modbus主模拟器。我正在使用NModbus库。我试图在屏幕上进行读取或写入操作后显示从设备收到的响应。例如，这是从NModbus库读取线圈功能代码，

public class ModbusIpMaster : ModbusMaster
    {
        private ModbusIpMaster(ModbusTransport transport)
            : base(transport)
        {
        }


    /// Read from 1 to 2000 contiguous coils status.
    /// </summary>
   /// <param name="startAddress">Address to begin reading.</param>
   /// <param name="numberOfPoints">Number of coils to read.</param>
  /// <returns>Coils status</returns>
       public bool[] ReadCoils(ushort startAddress, ushort numberOfPoints)
       {
            return base.ReadCoils(Modbus.DefaultIpSlaveUnitId, startAddress, 
          numberOfPoints);
       }
}

ReadCoils方法位于抽象类ModbusMaster的基类中。

public abstract class ModbusMaster : ModbusDevice, IModbusMaster
    {
        internal ModbusMaster(ModbusTransport transport)
            : base(transport)
        {
        }
        public bool[] ReadCoils(byte slaveAddress, ushort startAddress, ushort 
                                      numberOfPoints)
        {
            ValidateNumberOfPoints("numberOfPoints", numberOfPoints, 2000);

            return ReadDiscretes(Modbus.ReadCoils, slaveAddress, startAddress, 
                                    numberOfPoints);
        }
        internal bool[] ReadDiscretes(byte functionCode, byte slaveAddress, 
                                ushort startAddress, ushort numberOfPoints)
        {
            ReadCoilsInputsRequest request = new 
                      ReadCoilsInputsRequest(functionCode, slaveAddress, 
                                              startAddress, numberOfPoints);
            ReadCoilsInputsResponse response = 
                    Transport.UnicastMessage<ReadCoilsInputsResponse>(request);

            return response.Data.Slice(0, request.NumberOfPoints).ToArray();
        }
}

我想访问Read Discrete方法以使用ReadCoilsInputResponse来显示包含字节数，从属ID，数据等的响应。但是，当我创建类ModbusIPMaster的实例并使用该实例访问Read Discrete方法时，我无法访问它。谁能帮我解决这个问题？还是有其他方法可以显示收到的完整回复？以下是引用NModbus库的链接 https://github.com/NModbus/NModbus

Answer 1

ReadDiscretes声明为内部。您在同一集合中吗？如果不是，那么也许您应该考虑宣布为公开？

访问方法和Abstract类的成员

1 个答案: