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A transport-level error has occurred when receiving results from the server. (provider: TCP Provider, error: 0 - The semaphore timeout period has expired.)
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) at System.Data.SqlClient.TdsParserStateObject.ReadSniError(TdsParserStateObject stateObj, UInt32 error) at System.Data.SqlClient.TdsParserStateObject.ReadSniSyncOverAsync() at System.Data.SqlClient.TdsParserStateObject.TryReadNetworkPacket() at System.Data.SqlClient.TdsParserStateObject.TryPrepareBuffer() at System.Data.SqlClient.TdsParserStateObject.TryReadByte(Byte& value) at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) at System.Data.SqlClient.SqlDataReader.TryConsumeMetaData() at System.Data.SqlClient.SqlDataReader.get_MetaData() at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted) at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader() at Whir.Repository.Database.d__65`1.MoveNext() at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source) at Whir.Repository.Database.SingleOrDefault[T](String sql, Object[] args) at Whir.Repository.Database.SingleOrDefault[T](Object primaryKey) at Whir.Service.DbBase`1.SingleOrDefault[T](Object primaryKey) at Whir.Label.Dynamic.Location.GetLocationInfo() at Whir.Label.Dynamic.Location.Render(HtmlTextWriter output)

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低功耗数据采集终端GFN500

产品系列:GFN500

中核仪表低功耗数据采集终端GFN500,是一款具有进口品质同时价位为国产的在线监测仪表,广泛适用于管网监测等领域,测量精准,安全稳定

返回列表 13129987217

产品特点性能参数

1.可组态采集数据的参数类型、量程、起始点及脉冲底度等


2.可组态通讯接口,方便与具有通讯接口的仪表进行连接


3.可组态站号、时间、通讯参数等


4.支持动态域名及固定IP


5.本地、远程都可以查询参数及实时数据,还能设置所有运行参数


6.具有断电记忆功能,断电后不需要重新设置参数


7.配用大容量EEPROM,根据设置的保存间隔时间,进行数据保存



单片机:采用ARM7内核32位低功耗单片机


存储:内置8M存储芯片,可连续存储60000条数据,数据保存时间>10年


传感器接口:1路RS485,2路模拟量/数字量接口


数据传输:4G/NB-iot


通讯协议:支持AN-UNION/Modubs协议


供电:内置12V/40AH锂电池(可拓展电池容量)


功耗:待机电流<150uA,平均工作电流<75mA


工作模式:间歇\连续工作,间隙工作模式(1小时发送一条数据)下工作时间>1年,连续工作模式下工作时间:>360h


外形尺寸:Φ158mm×288mm(高)


外壳材质:304不锈钢(可定制316L不锈钢)


外壳防护等级:IP68


耐腐蚀等级:10级
技术参数
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