WTTVS监控管理系统中PPI协议的应用与实现

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Abstract First, It makes a brief analysis of the PPI communication protocol that packaged by C# language. Then, Combining with the needs that WTTVS monitoring and management system has to read /write PLC internal data storage area, to achieve rapid changes in data-intensive sampling, data storage area V of the PLC is divided into current and historical storage block, the sampling data was temporarily stored in corresponding storage blocks using PLC timer interrupt, PC read and show the data in current storage block real-time, The data in historical storage block was read and batched into the database after the end of system running, achieving intensive sampling data monitoring. Experiment shows that the system works normally and stably. It has achieved the design requirements.

Key words： monitoring management system PPI communication protocol data sampling

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	Articles by authors
	YAO Yi-long
	YE Song
	WANG Jing-dong
	GUO Jun
	MA Xiang-hui

Cite this article:

YAO Yi-long,YE Song,WANG Jing-dong等. Application and Implementation of the PPI Protocol in WTTVS Monitoring and Management System[J]. Meteorological Hydrological and Marine Instrument, 2013, 30(4): 56-61.

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http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2013/V30/I4/56

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