nature of the vulnerabilities to (SCADA) systems and highlight the need to
defend and protect them from ongoing cyber threats. They achieved this by
studying SCADA communication systems as well as taking a survey of
common SCADA vendors; they focused their attention to SCADA on the
electric power grid, and they had found that SCADA vendors did not
implement adequate security measures in their products, and they
recommended that a security policy be put in place to ensure the security of
the vital public infrastructures [ 13 ].
Scheer G. W., et al. in 2007 stated that, between the years 2000
and 2007, advancements had improved the feasibility of applying Ethernet
networks in electrical substations.
- Standards organizations and manufacturers have responded to the
need for substation-grade networking components that withstand the
harsh electrical conditions of substations and exhibit much higher
reliability than commercial and most industrial components. - For example, substation and network alternatives examined in their
paper, star serial networks continue to be more reliable than Ethernet
networks, but the reliability gap between the two approaches is
smaller now than it was in 2000 [ 14 ].
Bai X., et al. in 2008 applied WSNs (Wireless Sensor Networks) to a
SCADA system for wind power plant. They designed the WSN architecture
and Wireless communication route protocol of the SCADA system for
wind power plant. WSN can provide abundant, real-time data for wind
driven generators’ reliable running, guaranteeing the steady running of
wind power plant [ 15 ].
Hu G., et al. in 2009 presented a complete SCADA system of
PVs (Photovoltaic Power plants). They Concentrated on the