Which of the following components allows for remote control of a process?

The component that enables remote control of a process is the controller. Controllers are critical in process automation and control systems as they receive input from sensors, analyze that data, and execute commands to adjust actuators, which then influence the physical processes. Essentially, the controller interprets the data it gathers and sends signals to manage the operation of the system, allowing for remote monitoring and control. This can include adjusting set points, responding to changes in the process, and ensuring efficient and safe operation of the system from a distance.

In a process control system, while actuators control the physical mechanisms, transmitters send data, and sensors detect variables, it is the controller that is responsible for making decisions and executing control commands, thereby facilitating remote management of operations. Understanding the role of the controller is crucial for anyone working in instrumentation and control.