
The fourth phase of the industrial revolution (Industry 4.0) requires that production processes be controlled by programmable logic controllers (PLCs) without human intervention. Increasing efficiency in food, oil and gas, and manufacturing enterprises in Baku today directly depends on the proper installation of these systems.

Architecture and Working Principle of PLCs
A PLC (Programmable Logic Controller) is not just a processor, it is a modular computer that can withstand the harsh conditions of an industrial environment (electromagnetic noise, vibration, dust).
- Input Modules: Receive signals from sensors (temperature, pressure, proximity).
- CPU (Central Processing Unit): Executes the written program (usually in Ladder Logic language) and makes decisions.
- Output Modules: Activate motors, pneumatic valves, or signal lights.
Human Machine Interfaces (HMI): The Bridge Between Technology and Humanity
HMI (Human-Machine Interface) allows the operator to control the machine with a graphical interface, rather than with complex codes. The HMI panels provided by Artek have high brightness, which ensures clear viewing under daylight or industrial lighting. The panels display real-time faults (Alarm) on the screen, preventing major accidents.

