47 lines
1.9 KiB
C#
47 lines
1.9 KiB
C#
namespace Modbus.Net.Modbus
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{
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/// <summary>
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/// Modbus/Rtu协议连接器Udp透传
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/// </summary>
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public class ModbusRtuInUdpProtocolLinker : UdpProtocolLinker
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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 ModbusRtuInUdpProtocolLinker(string ip)
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: base(ip, int.Parse(ConfigurationReader.GetValueDirect("UDP:" + ip, "ModbusPort") ?? ConfigurationReader.GetValueDirect("UDP:Modbus", "ModbusPort")))
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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">端口号</param>
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public ModbusRtuInUdpProtocolLinker(string ip, int port)
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: base(ip, port)
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{
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((BaseConnector)BaseConnector).AddController(new FifoController(int.Parse(ConfigurationReader.GetValue("UDP:" + ip + ":" + port, "FetchSleepTime")), waitingListMaxCount: ConfigurationReader.GetValue("UDP:" + ip + ":" + port, "WaitingListCount") != null ? int.Parse(ConfigurationReader.GetValue("UDP:" + ip + ":" + port, "WaitingListCount")) : null));
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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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}
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