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Description: 多功能电能表通信规约 DLT 645-1997
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Size: 924000 |
Author: rosoon |
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Description: 中华人民共和国电力行业标准《多功能电能表通信规约》-People
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Size: 258048 |
Author: 羿宝存 |
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Description: 触发器实际上是一类特殊的存储过程, 但与一般的存储过程有本质的区别, 存储过程用户可以调用,
而触发器不能被调用, 只有当对表或视图进行一定的触发操作( IN SERT、U PDA TE 和DEL ETE) 时由系统自动
调用。另外触发器不允许带参数, 和特定的表相关联。并指出了在SQL Server 数据库开发应用中要注意的四个
事项。-Flip-flop is actually a special kind of stored procedure, but with the general nature of the stored procedure has the distinction, the user can call stored procedures, and triggers can not be called only when carried out on the table or view to trigger a certain operation (IN SERT , U PDA TE and DEL ETE) by the system automatically calls. Another flip-flop is not allowed zone parameters, and specific associated table. And pointed out that in the SQL Server database development applications should pay attention to four matters.
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Size: 115712 |
Author: 王功臣 |
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Description: 多功能电表通信规约 即645规约1997年版 进行多功能电表通信时应按此规约设计数据结构及格式-Multi-function meter communication protocol that is 645 statute in 1997 to carry out multi-functional version of this statute shall be meter communication design data structure and format
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Size: 258048 |
Author: 安迪 |
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Description: 基于Delphi的多功能电表人机界面的数据处理645规约-Delphi-based multi-function meter data processing man-machine interface 645 of the Statute
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Size: 126976 |
Author: 周 |
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Description: 645多功能电表645规约
645电表通信规约-645 Statute of the 645 multi-function meter 645 meter communication protocol
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Size: 258048 |
Author: lwy |
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Description: SP485E在电能表通讯中的应用(645-97}-iic
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Size: 114688 |
Author: 闫刚 |
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Description: 国家电网公司电能表规约dlt/645.多功能电表。-State Grid Corporation Statute Energy Meter dlt/645. Multifunction meter.
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Size: 258048 |
Author: zaobao |
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Description: DL/T 645—1997
中华人民共和国电力行业标准-DL/T 645-1997 People' s Republic of China Electric Power Industry Standard
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Size: 258048 |
Author: 阿long |
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Description: 645规约，普遍用于电力仪表的通讯协议，这书就是介绍645协议的-645 of the Statute is widely used for electric power meter communication protocol, this book is to introduce 645 agreement
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Size: 258048 |
Author: apyuanjie |
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Description: 江苏电能表通信协议，适用于国网最新645-2007的规约-Jiangsu power meter communication protocol, applicable to the statute of State Grid latest 645-2007
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Size: 1205248 |
Author: stephenking |
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Description: 江苏电能表招标技术规范，645-2007-Jiangsu energy meter tender specifications ,645-2007
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Size: 1988608 |
Author: 王修全 |
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Description: 多功能电能表通信规约 DLT 645-1997-Multi-function Watt-hour meter communication protocol DLT 645-1997
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Size: 923648 |
Author: LOCK |
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Description: 电表部颁通讯规约（645规约）-中华人民共和国电力行业标准-Ministerial meter communication protocol (645 statute)- The People' s Republic of China Electric Power Industry Standard
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Size: 258048 |
Author: yangzhimei |
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Description: 单相智能型国网电能表通信协议DL-645，对应于上面的程序-Intelligent single-phase watt-hour meter communication protocol State Grid DL-645, corresponding to the above procedure
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Size: 705536 |
Author: banyong |
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Description: *芯片组合为PIC16F690-I/SS + CC1100 (434Mhz)，
*专为目前传统RS485电表设计,可不修改表的软件方式直接将RS485表升级成无
线且具有路由的表
*结合目前高效稳定的无线传输芯片TI CC1100.
*拥有接近于透明串口传输(内置最大缓冲区32 bytes).
*支持一对一,一对多传输
*软件在线目的地址切换
*软件在线信道频率切换
*支持信道侦听功能,降低数据冲撞机会.
*支持数据确认功能,提升数据传送的稳定度.
*支持四个独立输入/出点 (TTL-Level)
*超小尺寸 : 30.00mmX23.5mm(不包括天线)
*低成本天线 ,采用弹簧天线
*输出频率 : 433.92Mhz (标准品)
*输出功率 : +10dBm
*接收感度 : -108dBm-* Chip combination PIC16F690-I/SS+ CC1100 (434Mhz),
* RS485 meter for the current traditional design of the table from time to modify the way the software upgrade directly to the table without RS485
Line and has a routing table
* Combined with the current stable and efficient wireless transmission chip TI CC1100.
* Has a close and transparent serial transmission (built-in maximum buffer 32 bytes).
* Support for one to one, one to many transmission
* Destination Address switch software online
* Software online channel frequency switching
* Support the channel listener function, reduce the chance of data collision.
* Support data confirm but also to enhance data transmission reliability.
* Support 4 independent input/output (TTL-Level)
* Ultra small size: 30.00mmX23.5mm (not including antenna)
* Low-cost antennas, antenna with spring
* Output frequency: 433.92Mhz (standard)
* Output power:+10 dBm
* Receive sensitivity:-108dBm
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Size: 183296 |
Author: Henry |
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Description: 645规约1997. 645规约1997.-645规约1997.645规约1997.645规约1997.
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Size: 258048 |
Author: zbj |
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Description: DL/T 645 2007 specification in Chinesse
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Size: 3902464 |
Author: engycz |
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Description: 中国国家电网645-2007通信协议,电能表专用-China State Grid 645-2007 communication protocol
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Size: 46080 |
Author: faidy |
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Description: DLT-645-2007-多功能电能表通信协议2010-DLT-645-2007 Multifunctional power meter communication protocol
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Size: 1315840 |
Author: jie |
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