Powering the Digital Transformation with EtherCAT | PLANET IECS-1116-DI and IECS-1116-DO are industrial EtherCAT slave I/O modules equipped with the EtherCAT protocol for today's distributed industrial applications. The IECS Series provides high-density digital input/output channels and is protected with 3750V DC isolation. Its compact size and DIN-rail mounting make installation in a cabinet easy. Pluggable terminal blocks and LED indicator help users to maintain and set up their system.