AS-Interface gateways with PLC functionality are industrial automation products that combine the simplicity of AS-Interface (Actuator-Sensor Interface) with the programmability of PLCs (Programmable Logic Controllers). These devices are typically offered by leading industrial automation brands such as Siemens (Germany), Pepperl+Fuchs (Germany), and Bihl+Wiedemann (Germany). They serve industries like manufacturing, automotive, and logistics, providing seamless integration of sensors and actuators while enabling advanced control logic. Key products include ASi-PLC gateways, safety monitors, and modular I/O systems, designed to enhance efficiency and flexibility in industrial networks.