RIO600 Enables Flexible – ABB Remote IO

RIO600 ABB remote io is designed to expand the digital and analog I/O of ABB’s Relion® series protection relays, provide I/O for the station automation device COM600 using IEC 61850 communication and Grid Automation applications

The unit allows maximum I/O flexibility and provides seamless IEC 61850 connectivity between the substation binary and analogue signals. One of the benefits derived with using RIO600 is that it helps simplify and decrease the wiring inside the substation. In a traditional, fully hard-wired medium-voltage switchgear/substation control and protection system, you find extensive I/O wiring. The RIO600 unit, however, provides these additional inputs and outputs distributed within the switchgear itself.

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  • Ensures efficiency of the distribution network and operations
  • User level and operational security to ensure operational reliability
  • Better value for investments through substation device integration based on native IEC 61850
  • Increased fault management performance by making use of the precise and unique MFA earth fault FPI method
  • Web-browser-based human machine interface (HMI) for access to substation devices.
  • IEC 61850 and Modbus TCP station bus to extend the protection and control applications
  • Fast real-time communication between protection and control relays and physical inputs/outputs
  • Wide set of different I/O options
  • Flexible applications with Fault Passage Indication (FPI) functionality for grid automation applications
  • State-of-the-art directional earth fault indication reaching high sensitivity required in compensated networks
  • Fulfills IEC 61850 communication performance requirement (Type 1A, class P1)



Description Type test value Reference
Electrostatic discharge

•  Air discharge


8 kV

IEC 60255-26 and IEC 61000-4-2, Level 3
Radio frequency electromagnetic field (amplitude modulated) 10 V/m (RMS)

f = 80…1000 MHz and 1.4. 2.7 GHz

IEC 60255-26 and IEC 61000-4-3, Level 3
Radio frequency electromagnetic field from digital radio telephones (pulse modulated) 10 V/m (RMS)

f = 900 MHz, 1890 MHz

IEC 61000-4-3, Level 3
Power frequency (50 Hz) magnetic field

•  Continuous

•  3 s


100 A (RMS)/m

300 A (RMS)/m

IEC 60255-26 and IEC 61000-4-8
Pulsed magnetic field 1000 A/m; 6.4/16 μs Tr/Td; 5 pulses positive/ negative; 10 s (time interval) IEC 61000-4-9, Level 5
Conducted disturbance induced by radio frequency fields, Amplitude modulated 0.15…80 MHz – 10 V (unmod, RMS); 80% AM

(1 kHz); 150 Ω source impedance

27 and 68 MHz (spot frequencies); 10 V

(unmod, RMS); 80% AM (1 kHz); 150 Ω

source impedance

IEC 60255-26 and IEC 61000-4-6, Level 3
Fast low-energy transient (EFT) (including functional earth port) 5/50 ns Tr/Td; 5 kHz repetition frequency 4 kV (peak) for power supply input/output

ports and 2 kV (peak) for communication port

IEC 60255-26 and IEC 61000-4-4
Damped oscillatory waves (HFD) 100 kHz and 1 MHz burst


•  Power supply and input/output ports


•  Communication port

100 kHz and 1 MHz frequency; 75 ns Tr; 40 Hz and 400 Hz repetition frequency; 200 Ω source impedance

Differential mode: 1 kV (peak) Common mode: 2.5 kV (peak)

Differential mode: not applicable Common mode: 1 kV (peak)

IEC 60255-26 and IEC 61000-4-18
Slow high-energy transient (surge1.2/50 μs voltage pulse)

•  Auxiliary power supply and input/output ports1)

•  Communication port

1.2/50 μs Tr/Th (open circuit) 8/20 μs Tr/Th (short circuit)

±4 kVp (L-Gnd) ±2 kVp (L-L)


±2 kVp (L-Gnd) while no L-L test is applicable

IEC 60255-26 and IEC 61000-4-5
Voltage dips, short interruptions and voltage variation immunity tests (AC 50 Hz and 60 Hz) 30% reduction for 25/30 cycles 60% reduction for 10/12 cycles

100% reduction for 0.5, 1.0, 2.5 and 5.0 cycles 100% reduction for 250/300 cycles

IEC 60255-26 and IEC 61000-4-11
Voltage dips, supply interruption and voltage variations on DC input power port (immunity tests) 30% reduction for 500 ms

60% reduction for 200 ms

100% reduction for 10, 20, 30 and 50 ms

100% reduction for 5 s

IEC 60255-26 and IEC 61000-4-29
Ripple voltage 15% Un frequencies of ripple 100/120 Hz (for 50/60 Hz) IEC 60255-26, IEC 61000-4-17 and IEEE C37.90-2005
Gradual shut-down/start-up test (for DC power supply)

•  Ramp towards shut-down

•  Wait at power of condition

•  Ramp towards start-up



60 s

5 min

60 s

IEC 60255-26