In what context is a Fieldbus typically used?

A Fieldbus is specifically designed for industrial automation and process control, facilitating communication between various industrial devices, such as sensors, actuators, and Programmable Logic Controllers (PLCs). Its primary role is to enable these devices to communicate with each other over a digital communication network, allowing for efficient data transfer and control in manufacturing environments. This capability enhances the ability to monitor and manage industrial processes in real-time.

The other contexts mentioned do not align with the fundamental purpose of a Fieldbus. For instance, while there are wireless protocols for communication, Fieldbus is inherently a wired or digital protocol, focusing on reliable communication in industrial settings rather than general IT operations or personal computing environments. Therefore, option C clearly illustrates the correct usage of a Fieldbus within the context of industrial networking, which is vital for operational efficiency and automation in manufacturing processes.