Whate is digital input and digital output & analoge input and output for plc. Differences between digital&analoge signal.

Question

Accepted Answer

Digital and analog inputs and outputs are used in PLCs to receive and send signals. Digital signals are binary, while analog signals are continuous.

Digital inputs and outputs use binary signals to communicate with other devices.
Analog inputs and outputs use continuous signals to measure and control variables such as temperature, pressure, and flow.
Digital signals are either on or off, while analog signals can have a range of values.
PLCs use digital and analog inputs and outputs to monitor and control industrial processes.
Examples of digital inputs and outputs include switches, relays, and sensors.
Examples of analog inputs and outputs include temperature sensors, pressure transducers, and flow meters.

Amul Industries Instrument Engineer interview questions & answers