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