KONGSBERG RDIOR400

Loop voltage: 24 VDC +/- 20%

Input loop current: maximum 4 mA at 24 VDC loop voltage

Channel “off” current: <0.5 mA

Channel “on” current: >3 mA

Maximum input voltage: loop voltage

Maximum input

signal frequency: 10 ms pulse

Connectors: screw terminals, 2.5 mm2

• Up to 32 individually dened digital inputs or

 outputs

• Dual Serial Process Bus (SPBus) interfaces to allow 

optional redundancy

• Each SPBus interface ensures electrical isolation 

from the control system

• Easy installation and replacement:

 - DIN standard rail-mounting

 - plug-in connections

• Status LED for normal operation or error condition

• Loop-check and debugging from operator station 

and local data terminal

• Short-circuit proof loop current driver

• Fail-safe activation of outputs upon loss of communication

•

Built-in test for self diagnostics and fault

 identication 

• SIL 1 compliant

• Line Fault Detection (LFD)

• Earth Fault Detection (EFD)

• Dual watch-dogs

The Kongsberg Maritime Remote Input and Output 

system (RIO400) uses a Serial Process Bus (SPBus) 

between a controller computer in the process network 

and the input and output (I/O) signals to remote 

devices such as valves, relays and temperature sensors.

The

RDIO400 is an interface module between the 

SPBus and digital inputs or outputs to and from eld 

devices.

The RIO400 system provides a cost-effective solution 

for connecting any number of inputs and outputs to a 

Kongsberg Maritime automation system, independent 

of the distance between the remote equipment and the 

controller computer.

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