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1.Function

This marine digital I/O module serves as the field signal interface unit for Rolls-Royce marine control systems:

Digital input: Collect on-off status signals from field devices, including limit switches, emergency stop contacts, pressure switches, valve position feedback and temperature alarm contacts.
Digital output: Output relay/transistor switching signals to drive solenoid valves, alarm lamps, relays and local status indicators.www.plcva.com
Signal isolation: Provide electrical isolation between field side and control system side to suppress interference caused by marine vibration, salt spray and heavy electrical noise.
Channel configuration: Equipped with multiple configurable digital channels for flexible assignment of input or output points according to system design.
Fault diagnosis: Detect channel open circuit, short circuit and module power abnormality, send fault diagnostic data to the main controller for alarm and troubleshooting.
Safety interlock: Participate in safety logic loops for propulsion, steering or thruster systems to execute safety cut-off actions once abnormal status is detected.www.plcva.com

Rolls-Royce Marine RRDI015 Digital I/O Module Physical photo

Rolls-Royce Marine RRDI015 Digital I/O Module Physical photo

Rolls-Royce Marine RRDI015 Digital I/O Module Physical photo

Applicable systems: Rolls-Royce marine automation, tunnel thruster, azimuth thruster and steering gear control systems.
Installation location: Mounted inside the marine control cabinet in engine room or thruster compartment of vessels.plcva.com
Vessel types: Offshore support vessels, ferries, cargo ships, yachts and naval vessels equipped with Rolls-Royce marine handling and propulsion equipment.
Core purpose: Transmit discrete field switch signals between ship field equipment and central control unit, realize equipment status monitoring, local actuation and safety interlock protection.
Maintenance scenario: Original spare module. It replaces the failed unit to restore the digital signal acquisition and output function of the marine control system, avoiding vessel downtime.