Title :
Dual Redundant Profibus Network Architecture in hot standby fault tolerant control systems
Author :
Singh, Sushil ; Chary, Valavoju Mahesh ; Rahman, P. Abdul
Author_Institution :
Satish Dhawan Space Centre, Indian Space Res. Organ., Sriharikota, India
Abstract :
This paper presents Dual Redundant Profibus Network Architecture in hot standby fault tolerant control systems. Here, two independent profibus backbones are used to connect main CPU rack with main & redundant I/O racks respectively. In the above fashion, the redundant CPU rack is also configured. This completely prevents the loss of control over process due to multiple failures in I/O communication interfaces in the DACS system. And also redundancy in “Y link” is established to acquire profibus DP slave data. This immensely enhances “the fault tolerant & redundancy” level of communication between PLC to I/O & DP slave. This completely avoids the loss of field I/Os communication due to various failures in profibus network.
Keywords :
failure analysis; fault tolerant control; field buses; programmable controllers; redundancy; DACS system; DP slave data; I/O communication interfaces; PLC; Y-link redundancy; dual-redundant profibus network architecture; failure analysis; field I/O communication loss; hot-standby fault tolerant control systems; main I/O racks; redundant CPU rack; redundant I/O racks; Manuals; Protocols; Redundancy;
Conference_Titel :
Advances in Engineering and Technology Research (ICAETR), 2014 International Conference on
Conference_Location :
Unnao
DOI :
10.1109/ICAETR.2014.7012852
