106 lines
3.6 KiB
C#
106 lines
3.6 KiB
C#
#region copyright
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//------------------------------------------------------------------------------
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// 此代码版权声明为全文件覆盖，如有原作者特别声明，会在下方手动补充
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// 此代码版权（除特别声明外的代码）归作者本人Diego所有
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// 源代码使用协议遵循本仓库的开源协议及附加协议
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// Gitee源代码仓库：https://gitee.com/diego2098/ThingsGateway
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// Github源代码仓库：https://github.com/kimdiego2098/ThingsGateway
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// 使用文档：https://diego2098.gitee.io/thingsgateway-docs/
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// QQ群：605534569
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//------------------------------------------------------------------------------
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#endregion
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using ThingsGateway.Foundation.Extension;
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using ThingsGateway.Foundation.Extension.Generic;
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namespace ThingsGateway.Foundation.Adapter.Modbus;
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/// <summary>
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/// <inheritdoc/>
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/// </summary>
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public class ModbusTcpDataHandleAdapter : ReadWriteDevicesTcpDataHandleAdapter<ModbusTcpMessage>
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{
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private readonly EasyIncrementCount easyIncrementCount = new(ushort.MaxValue);
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/// <summary>
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/// 检测事务标识符
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/// </summary>
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public bool IsCheckMessageId
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{
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get
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{
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return Request?.IsCheckMessageId ?? false;
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}
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set
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{
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Request.IsCheckMessageId = value;
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}
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}
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/// <inheritdoc/>
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public override byte[] PackCommand(byte[] command)
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{
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return ModbusHelper.AddModbusTcpHead(command, (ushort)easyIncrementCount.GetCurrentValue());
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}
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/// <inheritdoc/>
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protected override ModbusTcpMessage GetInstance()
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{
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return new ModbusTcpMessage();
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}
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/// <inheritdoc/>
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protected override FilterResult UnpackResponse(ModbusTcpMessage request, byte[] send, byte[] body, byte[] response)
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{
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//理想状态检测
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var result = ModbusHelper.GetModbusData(send.RemoveBegin(6), response.RemoveBegin(6));
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if (result.IsSuccess)
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{
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request.ResultCode = result.ResultCode;
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request.Message = result.Message;
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request.Content = result.Content;
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return FilterResult.Success;
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}
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else
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{
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//如果返回错误，具体分析
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var op = result.Copy<byte[], FilterResult>();
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if (response.Length == 9)
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{
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if (response[7] >= 0x80)//错误码
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{
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request.ResultCode = result.ResultCode;
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request.Message = result.Message;
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request.Content = result.Content;
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return FilterResult.Success;
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}
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}
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if (response.Length < 10)
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{
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request.ResultCode = result.ResultCode;
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request.Message = result.Message;
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request.Content = result.Content;
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return FilterResult.Cache;
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//如果长度不足，返回缓存
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}
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if ((response.Length > response[8] + 9))
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{
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request.ResultCode = result.ResultCode;
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request.Message = result.Message;
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request.Content = result.Content;
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return FilterResult.Success;
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//如果长度已经超了，说明这段报文已经不能继续解析了，直接返回放弃
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}
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else
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{
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request.ResultCode = result.ResultCode;
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request.Message = result.Message;
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request.Content = result.Content;
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return FilterResult.Cache;
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//否则返回缓存
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}
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}
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}
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}
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