The ASi-5/ASi-3 CIP Safety over EtherNet/IP+Modbus TCP gateway can replace an existing ASi-3 gateway without any programming effort. As version “1 Gateway, 1 Power Supply for 2 ASi networks,” it comes with two ASi-5/ASi-3 masters and can communicate as an ASi-5 master and an ASi-3 master simultaneously in two ASi networks. The onboard Webserver enables simple diagnostics as well as remote maintenance, while the integrated OPC UA server allows simple incorporation into industry 4.0 applications. In addition to ASi Safety and Safe Link, the safe fieldbus protocol CIP Safety over EtherNet/IP also is integrated.