International Journal of Scientific Engineering and Technology

B. Dineshshankar ¹, N. Rajeshkumar ², S. Thamaraichelvi ¹

Affiliations
1 Department of Applied Electronics, Sasurie College of Engineering, Tirupur, Tamilnadu, IN
2 Sasurie College of Engineering, Tirupur, Tamilnadu, IN

Abstract

SCADA (supervisory control and data acquisition) is a type of industrial control system (ICS). It’s a centralized system that monitors and control industrial processes that exist in the physical world. They work in Master – Slave basis. This system is widely used in Power plants, traffic light control, power plants, etc., As it is a centralized system storing lot of data, there is chance for the attackers to hack the information. In the existing system, a special filtering system is used which acts as a firewall for the SCADA network. System is prevented from hackers by analyzing the state of the system. It involves the prediction of finding whether the system is close to the critical state.The problem is that only attack by the hacker is prevented. Any problem in the software of PLC (Programmable Logic Controller) is not identified. There is no protection against unintentional errors or and other code level attacks. Some errors will show only warning, the user will ignore the warning and upload the malicious code into the server thus affecting the entire system. We focus on software vulnerabilities in ladder logic; a popular graphical language for programmable logic controllers. We show how intentional or unintentional errors in the ladder logic code can lead to integrity and availability violations. We propose methods to support secure Programmable logic controllers code development and to detect vulnerable applications.

Keywords

SCADA, ICS, PLC, Filtering.

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S. Thamaraichelvi ¹, N. Rajeshkumar ¹, B. Dineshshankar ¹

Affiliations
1 Department of Applied Electronics, Sasurie College of Engineering, Tirupur, Tamilnadu, IN

Abstract

Almost all the Industrial Data Acquisition and control systems today use connection oriented concepts for interfaces. However, various shapes and functional commands that each cable or wire based system has also raises numerous problems: the difficulties in locating the particular area affected by the industrial parameter, the complexity in operation of the system, the maintenance issue and so on. The control of sensitive industrial parameters by using SCADAbased wireless technology has gained significant industry and academic attention lately for the usability benefits and convenience that it offers users. The control of the temperature of a room containing chemicals and toxic gases the existing research has failed to provide a flexible solution for controlling such conditions by connection- oriented systems. They have used cables and bulky equipment which require large amount of space, high degree of the maintenance and are easily detoriated by moisture and excessive heat. Additionally, the Data acquisition and control techniques used so far have imposed considerable computational burden and have not provided a consistent and accurate results expected by the employees and their industries.

Keywords

SCADA, Cross Layer Mitigation, Wireless Technologies.

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