/// <summary> /// 从三菱PLC中读取想要的数据,返回读取结果 /// </summary> /// <param name="address">读取地址,格式为"M100","D100","W1A0"</param> /// <param name="length">读取的数据长度,字最大值960,位最大值7168</param> /// <returns>带成功标志的结果数据对象</returns> /// <remarks> /// 地址支持的列表参考 <seealso cref="MelsecMcAsciiNet"/> 的备注说明 /// </remarks> /// <example> /// 假设起始地址为D100,D100存储了温度,100.6℃值为1006,D101存储了压力,1.23Mpa值为123,D102,D103存储了产量计数,读取如下: /// <code lang="cs" source="Communication_Net45.Test\Documentation\Samples\Profinet\MelsecAscii.cs" region="ReadExample2" title="Read示例" /> /// 以下是读取不同类型数据的示例 /// <code lang="cs" source="Communication_Net45.Test\Documentation\Samples\Profinet\MelsecAscii.cs" region="ReadExample1" title="Read示例" /> /// </example> public override OperateResult <byte[]> Read(string address, ushort length) { // 地址分析 OperateResult <byte[]> coreResult = MelsecHelper.BuildAsciiReadMcCoreCommand(address, length, false, McAnalysisAddress); if (!coreResult.IsSuccess) { return(coreResult); } // 核心交互 var read = ReadFromCoreServer(PackMcCommand(coreResult.Content, NetworkNumber, NetworkStationNumber)); if (!read.IsSuccess) { return(OperateResult.CreateFailedResult <byte[]>(read)); } // 错误代码验证 ushort errorCode = Convert.ToUInt16(Encoding.ASCII.GetString(read.Content, 18, 4), 16); if (errorCode != 0) { return(new OperateResult <byte[]>(errorCode, StringResources.Language.MelsecPleaseReferToManulDocument)); } // 数据解析,需要传入是否使用位的参数 return(ExtractActualData(read.Content, false)); }
/// <summary> /// 从三菱PLC中批量读取位软元件,返回读取结果 /// </summary> /// <param name="address">起始地址</param> /// <param name="length">读取的长度</param> /// <returns>带成功标志的结果数据对象</returns> /// <remarks> /// 地址支持的列表参考 <seealso cref="MelsecMcAsciiNet"/> 的备注说明 /// </remarks> /// <example> /// <code lang="cs" source="Communication_Net45.Test\Documentation\Samples\Profinet\MelsecAscii.cs" region="ReadBool" title="Bool类型示例" /> /// </example> public virtual OperateResult <bool[]> ReadBool(string address, ushort length) { // 地址分析 OperateResult <byte[]> coreResult = MelsecHelper.BuildAsciiReadMcCoreCommand(address, length, true, McAnalysisAddress); if (!coreResult.IsSuccess) { return(OperateResult.CreateFailedResult <bool[]>(coreResult)); } // 核心交互 var read = ReadFromCoreServer(PackMcCommand(coreResult.Content, NetworkNumber, NetworkStationNumber)); if (!read.IsSuccess) { return(OperateResult.CreateFailedResult <bool[]>(read)); } // 错误代码验证 ushort errorCode = Convert.ToUInt16(Encoding.ASCII.GetString(read.Content, 18, 4), 16); if (errorCode != 0) { return(new OperateResult <bool[]>(errorCode, StringResources.Language.MelsecPleaseReferToManulDocument)); } // 数据解析,需要传入是否使用位的参数 var extract = ExtractActualData(read.Content, true); if (!extract.IsSuccess) { return(OperateResult.CreateFailedResult <bool[]>(extract)); } // 转化bool数组 return(OperateResult.CreateSuccessResult(extract.Content.Select(m => m == 0x01).Take(length).ToArray( ))); }