This paper investigates enhancing the ability to detect cyber-attacks by using information and methods related to fault detection. An experimental stand, and an associated simulator have been constructed to enable tests of combined cyber attacks and faults in industrial processes, and, possibly, to distinguish between them. Some scenarios of cyber attacks have been presented, analysed theoretically and then tested on the simulator, demonstrating that detection of cyber attacks by this method is possible.

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This paper reports on development of a laboratory set-up, for testing the concept and the components of Industry 4.0 enabled mechatronic system. A simple mock manufacturing lane is connected to a collaborating robot. There are three different programmable logic controllers (PLC) and various other elements which need to talk to each other using a variety of communication protocols. The controllers, and consequently the schedule of operations, can be programmed remotely. Moreover, the information is exchanged through the cloud service which could also assume the role of a soft-PLC. From the perspective of cyber-security, this set-up enables defining benchmarks and performing tests for resilience of the control structure. Some test scenarios are discussed in the paper.

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