“…Further, WSN is an inseparable part of industrial IoT and the concept of Industry 4.0 is characterized by flexible manufacturing, collaborative robotics supported by reliable communication between sensors, actuation systems and computing elements [4] , [5] . Hence, we are of the view that WSN systems can be deployed for safety applications after evaluating its end-to-end Safety Integrity Level (SIL) [6] . Here the end-to-end WSN system refers to both hardware as well as the data communication involving the source node, hop path, routers, and destination edge devices.…”