ThingsGateway/framework/Foundation/ThingsGateway.Foundation.Adapter.Siemens/Siemens/SiemensS7PLCDataHandleAdapter.cs

#region copyright
//------------------------------------------------------------------------------
//  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
//  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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//  Github源代码仓库：https://github.com/kimdiego2098/ThingsGateway
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//------------------------------------------------------------------------------
#endregion

namespace ThingsGateway.Foundation.Adapter.Siemens;

/// <summary>
/// SiemensS7PLCDataHandleAdapter
/// </summary>
public class SiemensS7PLCDataHandleAdapter : ReadWriteDevicesTcpDataHandleAdapter<SiemensMessage>
{
    /// <inheritdoc/>
    public override byte[] PackCommand(byte[] command)
    {
        return command;
    }

    /// <summary>
    /// <inheritdoc/>
    /// </summary>
    /// <returns></returns>
    protected override SiemensMessage GetInstance()
    {
        return new SiemensMessage();
    }

    /// <inheritdoc/>
    protected override FilterResult UnpackResponse(SiemensMessage request, byte[] send, byte[] body, byte[] response)
    {
        var result = new OperResult<byte[]>();
        if (response[2] * 256 + response[3] == 7)
        {
            result = new OperResult<byte[]>() { Content = response };
        }
        else
        {
            //以请求方为准，分开返回类型校验
            switch (send[17])
            {
                case 0x04:
                    result = SiemensHelper.AnalysisReadByte(send, response);
                    break;
                case 0x05:
                    result = SiemensHelper.AnalysisWrite(response);
                    break;
            }
        }
        request.ErrorCode = result.ErrorCode;
        request.Message = result.Message;
        request.Content = result.Content;
        return FilterResult.Success;
    }
}