HISTORICAL DATA PROCESSING METHOD AND DEVICE FOR DISTRIBUTED CONTROL SYSTEM

摘要

A historical data processing method and a device for a distributed control system are provided. The method comprises: collecting real-time variable data in the distributed control system (DCS) (101); storing the variable data alternately according to a preset storage rule by utilizing two memories, distributing the sequentially stored variable data to distinguish identification information, and when one memory is used for storing, transferring the stored variable data in the other memory to a storage disc (102). The method can improve the reliability and high efficiency of historical data processing.