Real-time Data Manager and Inquiry Method on Distributed Control System

摘要

The present invention relates to a real-time data management device on a distributed control system, and more particularly, to a real-time data manager for efficiently managing real-time analog and digital signal data input and output from the site in a distributed control system applied to a power plant, etc. to provide to a monitoring device. And an application program interface (API), which is an interface for retrieving and storing the real-time data stored in the real-time data unit, which is stored in segments by holding tags of the same type of data collected by the scanner. Characterized in that the data request step, segment + opel return step, data return step for the real-time data query method of the distributed control system, the search time of the real-time data except for the initial request Because it is direct access, it is very fast, and when constructing a tag, the user can arbitrarily apply tag naming according to the characteristics of the system, and it has the advantage of adjusting the load of the system because the data collection cycle of the scanner is variable. .