I. Introduction
The IEC 62061:2021 standard [1] requires production owners have to ensure both functional safety and information security in order to reduce the risk of damage to humans and equipment. Unfortunately, traditional models of functional safety and information security have been designed in isolation and have been hard to combine [2]. The convergence of Information Technology (IT) and Operational Technology (OT) has opened up new attack vectors from the internet and/or office computers via IIoT to production assets, such as a robot work cell for turning metal pieces [3].
IEC 62061:2021: Safety of machinery-Functional safety of safety-related control systems