48 lines
1.6 KiB
C#
48 lines
1.6 KiB
C#
using System.Collections.Generic;
|
|
using System.Configuration;
|
|
|
|
namespace Modbus.Net.Modbus
|
|
{
|
|
/// <summary>
|
|
/// Modbus/Tcp协议连接器
|
|
/// </summary>
|
|
public class ModbusTcpProtocolLinker : TcpProtocolLinker
|
|
{
|
|
/// <summary>
|
|
/// 构造函数
|
|
/// </summary>
|
|
/// <param name="ip">IP地址</param>
|
|
public ModbusTcpProtocolLinker(string ip)
|
|
: this(ip, int.Parse(ConfigurationManager.AppSettings["ModbusPort"] ?? "502"))
|
|
{
|
|
}
|
|
|
|
/// <summary>
|
|
/// 构造函数
|
|
/// </summary>
|
|
/// <param name="ip">IP地址</param>
|
|
/// <param name="port">端口</param>
|
|
public ModbusTcpProtocolLinker(string ip, int port) : base(ip, port)
|
|
{
|
|
((BaseConnector)BaseConnector).AddController(new FifoController(0, true, DuplicateWithCount.GetDuplcateFunc(new List<int>{4,5})));
|
|
}
|
|
|
|
/// <summary>
|
|
/// 校验返回数据
|
|
/// </summary>
|
|
/// <param name="content">设备返回的数据</param>
|
|
/// <returns>数据是否正确</returns>
|
|
public override bool? CheckRight(byte[] content)
|
|
{
|
|
//ProtocolLinker的CheckRight不会返回null
|
|
if (base.CheckRight(content) != true) return false;
|
|
//长度校验失败
|
|
if (content[5] != content.Length - 6)
|
|
throw new ModbusProtocolErrorException(500);
|
|
//Modbus协议错误
|
|
if (content[7] > 127)
|
|
throw new ModbusProtocolErrorException(content[2] > 0 ? content[2] : content[8]);
|
|
return true;
|
|
}
|
|
}
|
|
} |