12 A tank heating control system is shown in the figure. a) List the actuators and sensors used in the system and identify each to be connected to the microcontroller as (input or output) and (digital or analog). b) Is this an open-loop or closed-loop control system? (8 Points) Inlet Valve PLC Program for Tank Heating Control using Heater Instrumentation Tools.com High Level Heaters Temperature Sensor Low Level Outlet Valve Enter your answer