摘要
在实时操作系统QNX6.20下,利用Socket API使基于Modbus TCP/IP协议的以太网现场总线实现多机通信。通过实验确定最佳的多机通信周期,以保证多机实时、可靠地控制和监测现场设备。实验结果应用于核聚变装置极向场电源控制系统中,提高了通信实时性和稳定性。
Using Socket API, Ethemet fieldbus based on Modbus TCP/IP protocol can communicate with several computers under QNX6.20 RTOS. The best multi-computer communication cycle is determined by experiments, so that computers can control and monitor the field equipments reliably and in real-time. It is applied to a poloidal field power supply control system of nuclear fusion device, then stability and real-time of communication are improved.
出处
《计算机工程》
EI
CAS
CSCD
北大核心
2006年第11期245-247,共3页
Computer Engineering
基金
国家发展计划委员会投资基金资助项目((1998)1303)
关键词
极向场
以太网
现场总线
QNX
多机通信
Poloidal field
Ethernet
Fieldbus
QNX
Multi-computer communication
