Author(s)

Merna N. Abou Eita¹, Mostafa W. Hussein¹, Ahmed A. Ibrahim¹, Shereen S. Abouelazayem¹, Mennatallah A. Morsi¹, Eslam A. Moustafa¹, Hassan H. Halawa¹, Ramez M. Daoud¹, Hassanein H. Amer¹, Hany M. ElSayed²

¹Electronics and Communications Engineering Department, The American University in Cairo, New Cairo, Egypt.
²Electronics and Communications Engineering Department, Cairo University, Giza, Egypt.

This paper presents a novel fault-tolerant networked control system architecture consisting of two cells working in-line. This architecture is fault-tolerant at the level of the controllers as well as the sensors. Each cell is based on the sensor-to-actuator approach and has an additional supervisor node. It is proven, via analysis as well as OMNeT++ simulations that the production line succeeds in meeting all control system requirements with no dropped or over-delayed packets. A reliability analysis is then undertaken to quantitatively estimate the increase in reliability due to the introduction of fault-tolerance.

Fault-Tolerance, NCS, S2A, In-Line, TMR, Ethernet, OMNeT++, Reliability

Eita, M. , Hussein, M. , Ibrahim, A. , Abouelazayem, S. , Morsi, M. , Moustafa, E. , Halawa, H. , Daoud, R. , Amer, H. and ElSayed, H. (2016) Multi-Node Fault-Tolerant Two-Cell Real-Time S2A Network. Intelligent Control and Automation, 7, 25-38. doi: 10.4236/ica.2016.72004.