Application of Communication Optimization Strategy Based on Cascade PLC MODBUS in Fire Water System of Hydropower Station
As to the bad real-time problem of traditional communication scheme that is one master station and more slave stations MODBUS communication in fire water system of hydropower station, in this paper, a connection scheme of a cascade PLC communication was proposed to solve the defects of decreasing transmission speed because of long distance in communication. The communication software of PLC was also optimized to reduce the cycle treatment time of PLC CPU, and greatly improve the communication efficiency and response speed. Practice shows that this scheme has high reference value and be worth to extend in the field of industrial control which use PLC MODBUS to communicate between one master station and more slave stations.
cascade PLC communication optimization hydropower station fire water system
FENG Lei-hua GUI Wei-hua YANG Feng
School of Information Science and Engineering Central South University Changsha, China School of Ene School of Information Science and Engineering Central South University Changsha, China JME (HuNan) Automation Engineering Co. Ltd.Changsha, China
国际会议
长沙
英文
3024-3027
2009-10-10（万方平台首次上网日期，不代表论文的发表时间）