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3.1.2.1 多协议支持
对外通信采用Modbus TCP标准协议进行通信,现场通信数据通过数据缓存区进行读写访问。
3.1.2.2 Modbus TCP协议
同3.1.1.4内容。
3.1.2.3 数据获取指令执行
软件内部设置数据缓存区,解决MODBUS和北斗之间带宽不匹配问题。对上缓存服务软件下发的数据获取指令,对下按照服务软件设定的策略执行对应的协议指令。
现场数据类型分为DI/DO/AI/AO四种类型可选,每种类型可配置大数量200个。各类型数据优化结构、拼帧传输,减少对北斗带宽的消耗。
按照大站点数据量计算,完全更新一次有效数据需要更新428Bytes数据,即通过12条报文完成数据的更新,终端数据完全更新周期约为13min。数据查询指令中不同资源可设置不同监测等级,不同监测等级不同的更新频率。当终端数据更新采用不同监测等级查询时,高优先级数据更新周期缩短,低优先级数据更新周期相应延长。
3.1.2.4 工控指令执行
控制指令保持“请求-应答模式”,信道服务器始终向服务器监控软件实时回复控制指令正常回令,并通过北斗通信链路下发控制指令;控制回令通过北斗终端回复至北斗指挥机,回复内容为与控制指令相关的数据查询值。工控指令下发和执行状态返回优先于现场数据获取。
GENERAL ELECTRIC TIME OVERCURRENT RELAY 121FC53B1A
GENERAL ELECTRIC TRANSFORMER 240/480V 9T51B8
GENERAL ELECTRIC 425D211P1 DISCONNECT SWITCH (MISSING ACCESSORY)
GENERAL ELECTRIC 55-501336G4 COIL 480V
GENENAL ELECTRIC L542 GBPK PANEL METER 0-100
GENERAL ELECTRIC CR7G1WM SER. A OVERLOAD RELAY (8,0-12A)
GENERAL ELECTRIC R-440-5 FLOAT BALL
GENERAL ELECTRIC PANEL METER (BLANK) 50-24425EC
GENERAL ELECTRIC CR9440-D2AA LIMIT
GENERAL ELECTRIC V37320 CIRCUIT BREAKER
GENERAL ELECTRIC TEF124070 CIRCUIT BREAKER
LOT OF 21 GENERAL ELECTRIC PR6 MINI LAMPS BULB
GENERAL ELECTRIC RECTIFIER GEA4IICB1AD1
LOT OF 10 GENERAL ELECTRIC 51 MINI LAMP BULB
GENERAL ELECTRIC IC693MDL655E
GENERAL ELECTRIC 3S7505KH508A1 RELAY OUTPUT
GENERAL ELECTRIC L557-010-1403-150 PANEL METER 0-20
GENERAL ELECTRIC AA/30 PANEL
GENERAL ELECTRIC 50-162121ECRX2
GENERAL ELECTRIC SRPE250A150
GENERAL ELECTRIC Z97F8238RR CAPACITOR 480 VAC
GENERAL ELECTRIC 53-100 L553LSPZ A-C AMPERES 0-150
GENERAL ELECTRIC L540MTMT D-C AMPERES 0-10
LOT OF 2 GENERAL ELECTRIC THQL2160 CIRCUIT BREAKER
GENERAL ELECTRIC L553LSVA A-C KILOAMPERES 0-1.0
GENERAL ELECTRIC TED134Y100 100 AMP 480 VAC
GENERAL ELECTRIC 22D151G-5
GENERAL ELECTRIC 22D156G4 COIL 440V
GENERAL ELECTRIC 50-152121ECRX2
GENERAL ELECTRIC 22D103G103 220V
GENERAL ELECTRIC 53-100L542ECPB D-C AMPERES 0-75
GENERAL ELECTRIC L530LSLS D-C AMPERES 0-5
GENERAL ELECTRIC 65200-1 PANEL METER 0-22 FPM X HRD
GENERAL ELECTRIC 313963-004V
GENERAL ELECTRIC IC600FP811C
GENERAL ELECTRIC 22D153G2 COIL 115V
GENERAL ELECTRIC CR120B080
GENERAL ELECTRIC 22D135G3 COIL 220V
GENERAL ELECTRIC 23611 FOREIGN VOLTAGE ADAPTER
GENERAL ELECTRIC 55-501336G2 COIL 110V
GENERAL ELECTRIC P9PTNVJ POWER SUPPLY TRANSFORMER (AS PICTURED)
GENERAL ELECTRIC TED134015 CIRCUIT BREAKER 15A
GENERAL ELECTRIC V37303
GENERAL ELECTRIC 3SAA1313A2
GENERAL ELECTRIC 3SAA1308A2
GENERAL ELECTRIC IC630MDL375B
GENERAL ELECTRIC 22D135G2