PLCs are specialist industrial computers used for electromechanical process automation and control. They are renowned for being easy to program, flexible, and long-lasting. Sensors or human inputs provide data to a PLC, which processes it according to a user-defined program before sending orders to output devices or actuators.
- Monitoring input conditions (e.g., temperature, pressure, position)
- Executing logic based on internal programming (ladder logic, function blocks, etc.)
- Controlling outputs like solenoids, motors, and relays
- Interfacing with Human Machine Interfaces (HMIs) and SCADA systems
- VFDs or motor drives
- Circuit breakers and fuses
- Contactors and overload relays
- Communication interfaces (Ethernet/IP, Modbus, etc.)
- Cooling systems and enclosures
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