Versatile and modular I/O

extensions transforming any mas-

ter unit into an I/O
powerhouse

• IEC 61850 GOOSE communication with a

processing time under 3ms

• Flexible configuration of two I/O cards per

unit with digital & analog inputs and relays

• Sate-of-the-art technology for advanced

automation functionalities like load shedding

• Serial (EXP422) or double Ethernet port

(copper or fiber) to connect to iRTUs/iGWs or
any other third party master unit

IEC 61850
COMPLIANT

iRTUe units communicate with IEC 61850 GOOSE, allowing to extend and distribute the acquisition and
command capabilities of any master device. We offer flexible I/O board configurations to fulfill any
application requirement, making the iRTUe the perfect choice to both set-up and retrofit electrical
communication networks.

Contemporary substation automation calls for advanced I/O modules to provide modern services such as
interlocking or load shedding. These functionalities rely on state-of-the-art characteristics, which cannot be
realised with serial communication media and old protocols. For this reason, the iRTUe handles IEC 61850
GOOSE messaging (with a processing time under 3ms) for newer projects but also Modbus with events buffer
and timestamping for older substations/ master units.

They connect via double Ethernet (RJ45, ST or SC) or serial (EXP422) port and are time synchronized to ensure
optimal time accuracy. This allows the iRTUe to communicate with any other equipment in the network: for
instance RTUs, gateways, other iRTUe modules and third-party IEDs on the substation process bus.

11/2023
IEC 61850 GOOSE I IEC 61850 GOOSE II
GOOSE communication works with enhanced re- Since these systems are based on software
transmission mechanisms on a publisher/subscriber configurations rather than hardwired signal paths,
basis, allowing P2P communication between iRTUe they are more cost-effective, easily extendable and
and IEDs with a processing time under 3ms on demand reconfigurable, making them highly
(performance class P2). adaptive to changing substation configurations and
network topologies.
IEC 61850 GOOSE also features strong VLAN and pri-
ority tagging functionalities via IEEE 802.1Q to send The operational reliability of these schemes is
messages efficiently across complex physical net- significantly enhanced by GOOSE’s continuous and
works. Combined with a substation-wide Ethernet inherent supervision of the communication and the
LAN, it enables flexible and sophisticated logic message’s data integrity. With its strong IEC 61850
schemes for substation protection and automation, GOOSE capabilities, the iRTUe is the perfect I/O
such as interlocking and load shedding. extension to employ these advantages.

ANALOG DC INPUTS DIGITAL INPUTS & OUTPUTS

One iRTUe unit can provide up to 16 analog inputs Each input can be defined as input or as a counter
with an isolation of 2.5kVrms. and have an individually configured debounce filter.
One iRTUe unit can provide up to 48 isolated digital
They are offered with a range of 4-20 mA and have
inputs with a 2.5kVrms isolation and a 1 ms
an accuracy of 0.15%.
timestamp accuracy. The units come in standard in-
put voltages of 24, 48, 125 or 220 Vdc.
ANALOG AC INPUTS On the output side, one unit can provide up to 16 dry
contact electromechanical relay outputs. Their maxi-
Three AC current and voltage inputs can be
mum breaking capacity 8A at 220Vac and 8, 0.3 and
connected to iRTUe to measure voltages, currents,
0.12A at 30, 110 and 220Vdc respectively. Grouping
phases, frequency and harmonics
relay outputs in blocks of 2.Isolation between solenoid
and contacts: 6 kV.

STANDARDS AND COMPLIANCE SIMPLE CONFIGURATION

The diverse backgrounds of our partners and clients iRTUe addresses, in both Modbus and GOOSE, can
from all over the world have helped us gather state-of be easily configured using the side microswitches.
-the-art know-how and firsthand experience in a For GOOSE, the default multicast group is set to zero
great variety of energy applications. This joined (modifiable with iConf).
knowledge is the foundation of our optimized iRTU
family, which has a proven track record of being par-
ticularly effective and resistant for a diverse range of
applications and harsh environments belonging to
the energy industry.
As a result, the iRTU meets the requirements of ex-
tensive standards, such as IEC61850-3, IEC60870-2-1 &
IEC60255-26.

The iRTU – A Scalable Protocol Converter with

Internal I/Os
iRTUs (B/M/S) carry 4 serial ports, up to 4 Ethernet ports with HSR/PRP
redundancy and a configurable I/O board with relay outputs, AIs and DIs
at several voltages. They also offer high precision (<1ms) timestamping
with NTP/PTP.
The iGrid protocol stack allows them to act as bay controllers, collecting
and processing data from old and new (61850) IEDs and reporting directly
to the control center (e.g. via IEC 60870-5-104/101 or DNP3.0) and also as
substation gateways, mapping old serial IEDs to IEC 61850 logical nodes.

More specifications on the back

 iRTUe D1R1 iRTUe A1A1 iRTUe CONFIGURATIONS

The iRTUe can be ordered in 8 different configurations

• iRTUe#D1D1: 48 Digital Inputs

• iRTUe#R1R1: 16 Relay Outputs
• iRTUe#A1A1: 16 Analog Inputs (0-20mA)
• iRTUe#D1R1: 24 Digital Inputs + 8 Relay Outputs
• iRTUe#D1A1: 24 Digital Inputs + 8 Analog Inputs
• iRTUe#R1A1: 24 Digital Inputs + 8 Analog Inputs
• iRTUe#00Q1: 3 AC Voltage and 3 AC Current inputs

Other configurations upon request

www.igrid-td.com
 COMMUNICATION FEATURES

Serial (1) RS-422 port to connect to iRTU&iGW devices with ModbusRTU

GENERAL CHARACTERISTICS
Ethernet (2) 10/100BaseTX ports, RJ45 or FX100 fiber optics with ST or SC connectors
Power supply W : wide range, 32 - 250Vdc (2.5kVrms isola-
Time Synchronization NTP and EXP422 client tion) 24 : 19.5-60Vdc (2.5kVrms isolation)

Protocols IEC 61850 GOOSE messaging or serial proprietary EXP422 MTBF 177,000h (one hundred seventy seven thousand
hours)
IEC 61850 Logical Nodes GGIO predefined (future firmware upgrades allow any SCL file)
Environmental Operating temperature : -25ºC to +70ºC
Time response under 3ms following the performance test in IEC 61850 (type 1A class P2) IEC 60068-2-1, IEC 60068-2-2, IEC 60068-2-3, IEC 60068-2-14,
IEC 60068-2-30, IEC 60068-2-38

DIGITAL INPUTS Vibration & shock test IEC 60068-2-6, IEC 60068-2-7

Isolation 2.5 kVrms Physical external dimensions: 173 x 78.4 x 137 mm (HxWxD)
IP30 enclosure with DIN Rail mounting
Activation ON when Vi>85%Vn | OFF when Vi<60%Vn | other levels upon request
Configuration simple configuration with iConf tool
Connectors MVSTBR 2,5 9 pins - grouping digital inputs in isolated blocks of 8 inputs and
one common terminal CPU 32 bits microcontroller @ 40MHz

RELAY OUTPUTS ANALOG INPUTS

Isolation 6 kVrms Isolation 2.5 kVrms

Contact Dry Connectors MVSTBR 2,5 4 pins – grouping analog inputs in

blocks of 2
Connectors MVSTBR 2,5 4 pins – grouping relay outputs in blocks of 2

Breaking Capacity 8A @ 220Vac – 8/0.3/0.12A @ 30/110/220Vdc DC Ranges 4-20mA (+/-20% tolerance), +/-10Vdc, with 0.15%
accuracy after calibration

EMC STANDARDS AC Ranges 1-5 A and 110Vac, with an accuracy better than

IEC 60950-1, IEC 60255-5:2000, EC 60255-22:2000, EN 55022, IEC 61000-6-4, IEC 61000-6-5,
IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-6, IEC 61000-4-8,
IEC 61000-4-9, IEC 61000-4-10, IEC 61000-4-12, IEC 61000-4-16, IEC 61000-4-17, IEC 61000-4-
18, IEC 61000-4-29

ORDERING INFORMATION

iRTUe#iioovvwwwmc

I/O BOARD #1 COMMUNICATION PROTOC OL

D1 24 digital inputs M Serial communication (EXP422)

R1 8 relays G IEC 61850 GOOSE
A1 8 4-20mA DC analog inputs
00 None
COMMUNICATION MEDIA

B RS422 serial bus (only with Modbus)

I/O BOARD #2
J Dual 10/100BaseTX Ethernet with RJ45
D1 24 digital inputs
T Dual FX100 Ethernet with ST connector
R1 8 relays
A1 8 4-20mA DC analog inputs
Q1 AC current and voltage inputs DIGITAL INPUTS VOLTA GE
00 None
000 No digital inputs
024 24Vdc digital inputs

POWER SUPPLY 048 48Vdc digital inputs

125 125Vdc digital inputs
24 19.2-60 Vdc
WV 32-250 Vdc

SMART SOLUTIONS FOR SMART GRIDS iGRID T &D HEADQUARTER S

C/ Marie Curie, 8-14, Parc Tecnològic

www.igrid-td.com 08042 – Barcelona, Catalonia (Spain)

Tel. +34.93.502.79.85, sales@igrid-td.com