Nuclear power plant DCS system cascade data exchange system and data exchange method thereof

• Main Authors: XU XIAOFEN, SHUI XUANXUAN, YU BO, HUANG QINGHUAI, ZHAO YANG, LIU BIN, WANG HENG, LIU MINGXING, WEI RONGCHAO, ZHANG WENSHUAI, CHEN ZHIQIANG, CHEN QI, HAN WENXING, SUN FUHAI, JIANG WEI
• Format: Patent
• Language: Chinese; English
• Published: 15.11.2019
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a nuclear power plant DCS system cascade data exchange system which comprises a plurality of cabinets, a plurality of cases arranged in each cabinet, a plurality of preferred modules PLM configured in each case, a preferred management module PM arranged in each case, a preferred communication module PCOM, a master controller and an engineer station. The preferred module PLMin the same case exchanges data with the preferred management module PM in the case through an SPI bus; in the same cabinet, the optimal management modules PM of the adjacent cases exchange data in atransparent transmission mode on a link layer through optical fiber links, so that a cascade networking is formed; the preferred management modules PM of the first-stage cases in all the cabinets interact data with the master controller through the preferred communication modules PCOM, and the master controller performs data exchange with the engineer station. 本发明公开了核电厂DCS系统级联数据交换系统，包括多个机柜，每个机柜内设置有多个机箱，每个机箱内配置有多个优选模块PLM，每