  The number of interconnected devices is growing constantly due to rapid
digitalization, thus providing attackers with a larger attack surface.
Particularly in critical infrastructures and manufacturing, where processes can
be observed and controlled remotely, successful attacks could lead to high
costs and damage. Therefore, it is necessary to investigate Industrial Control
System (ICS) devices like Programmable Logic Controllers (PLCs) to make these
sectors more secure. One possible attack vector is the exploitation of the
network communication of devices. Thus, a robust communication system is
essential to ensure security. Unfortunately, the high demand for real-world
ICSs makes it difficult to assess component security during its runtime.
However, this is possible in a research testbed where tests could be done and
analyzed in a safe environment. In this paper, we introduce our testbed and
measurement methods for communication robustness test research of ICS
components.
