40 lines
1.4 KiB
C#
40 lines
1.4 KiB
C#
using System.Collections.Generic;
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using System.IO.Ports;
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namespace Modbus.Net.Modbus
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{
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/// <summary>
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/// Modbus/Rtu协议连接器
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/// </summary>
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public class ModbusRtuProtocolLinker : ComProtocolLinker
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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="com">串口地址</param>
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/// <param name="slaveAddress">从站号</param>
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public ModbusRtuProtocolLinker(string com, int slaveAddress)
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: base(com, 9600, Parity.None, StopBits.One, 8, slaveAddress)
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{
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((BaseConnector)BaseConnector).AddController(new MatchController(new ICollection<(int,int)>[]{new List<(int,int)>{(0,0)}, new List<(int, int)>{(1,1)}}, 0));
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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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//CRC校验失败
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if (!Crc16.GetInstance().CrcEfficacy(content))
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throw new ModbusProtocolErrorException(501);
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//Modbus协议错误
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if (content[1] > 127)
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throw new ModbusProtocolErrorException(content[2]);
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return true;
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}
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}
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} |