The CARLO GAVAZZI GAP1605 is a portable programming unit specifically designed for use with Dupline fieldbus systems. This unit enables users to read and program channel codes for Dupline modules, offering flexibility in configuring I/O channels for various industrial applications. It supports both individual and group coding, allowing for customized configurations. The GAP1605 features a 4x8 LED display for clear code visualization and a 5-key tactile keyboard for easy operation. It is battery-powered, making it suitable for on-site programming and offline coding without requiring a Dupline system connection. The unit also includes a feature to configure output status during Dupline failure, providing enhanced control and reliability in critical applications.