KONGSBERG RDIO401S Remote Digital Input/Output & Relay Module

KONGSBERG RDIO401S (part number 603432) is DIN-rail mounted remote digital input/output & relay module for Kongsberg K-Chief and K-Safe marine automation and safety control systems. This remote digital input/output & relay module serves as distributed field I/O unit to collect binary status signals and drive relay outputs for marine machinery supervision. The remote digital input/output & relay module adopts dual redundant RBus communication bus to exchange data with RCU main process controllers. The remote digital input/output & relay module is equipped with front panel LED indicators and terminal blocks for field sensor and actuator wiring.

Vessel binary field signal acquisition & safety relay output actuation is the core function of KONGSBERG RDIO401S Remote Digital Input/Output & Relay Module. Vessel binary field signal acquisition & safety relay output actuation receives digital signals from limit switches, pressure contacts, temperature switches and emergency stop buttons across engine room and deck machinery. Reliable Vessel binary field signal acquisition & safety relay output actuation executes relay output commands from main controller to activate local alarms, solenoid valves and auxiliary equipment interlocks. Configurable Vessel binary field signal acquisition & safety relay output actuation supports SIL-rated safety logic for K-Safe emergency shutdown and fire-gas protection applications.

This unit delivers outstanding marine safety-qualified rugged I/O hardware performance for shipboard automation cabinet environments. marine safety-qualified rugged I/O hardware performance meets DNV-GL marine type approval standards, resisting vessel vibration, salt mist and humidity in machinery spaces. Robust marine safety-qualified rugged I/O hardware performance includes channel short-circuit protection, hardware watchdog and built-in self-diagnosis for each I/O channel. Complete marine safety-qualified rugged I/O hardware performance supports hot-swap replacement without total system shutdown for onboard maintenance.

KONGSBERG RDIO401S features dual 24 VDC power supply inputs, RBus CAN-based redundant communication, 16 digital input channels and 8 relay output channels, IP20 protection for cabinet installation. Operating temperature range -40°C to +70°C, suitable for continuous 24/7 marine operation. Widely deployed on offshore vessels, platform supply ships and cargo vessels for engine room monitoring, ballast control, auxiliary machinery interlock and safety ESD systems within K-Chief / K-Safe platforms. It acts as an original critical distributed safety I/O spare module for Kongsberg marine automation solutions.