One Transmission Networks System with its historical operating
performance data [ 9 ].
Paukatong T., et al., in 2005 presented a comparison between
two different configurations of the EGAT-SCADA (Electricity Generating
Authority of Thailand), the hierarchy and direct scan structures. They first
introduced the infrastructure of the EGAT-SCADA and described the DAC
(Data Acquisition and Control server) architecture and software design.
They further explained the details together with the strength and weakness
of both HS (Hierarchy Scan) and DS (Direct Scan) configurations [ 10 ].
Stojkovic B., et al. in 2006 developed and updated useful
approach to modern control system. Technological advances in networking
have made it possible to develop a low-cost display system for accessing
information by the means of the Internet and to "attach" it to a SCADA
system. The development of the real-time web-based application allows
users worldwide to generate specific energy consumption reports by using
the web browser instead of expensive third party software (web
URL:http://www.tsoepcg.com/konzum.html). The given data could be used
for the quick comparison between the current consumption and the planned
consumption for the same day, previous day, week etc. [ 11 ].
Vinh I. N., et al. in 2007 implemented the Internet of SCADA
systems with real-time data monitoring, device control and security
features. The proposed system was built as a web-based solution with IIS,
ActiveX control and .NET programming. The solution had addressed and
solved the weak points which were security, reliability and real timeliness
of existing researches by all the provided functionalities [ 12 ].
Chikuni E., et al. in 2007 investigated the vulnerabilities and
ways to protect SCADA systems, to give us a better understanding of the