iGW – Master of Protocols & Data Collection

Sub­sta­tion automa­tion, data con­cen­tra­tion, pro­to­col con­ver­sion, gen­er­a­tion con­trol.. you name it! The iGW is smart and high­ly adapt­able, solv­ing all of your net­work chal­lenges efficiently.
  • Secured, advanced and adapt­able com­mu­ni­ca­tion units suit­able for all ener­gy envi­ron­ments, from HV sub­sta­tions to pow­er plants
  • Inter­nal switch with RSTP/ PRP/ HSR redun­dan­cy for more reliability
  • 2 Eth­er­net ports, 4 ser­i­al ports, and option­al, inter­nal 4G, 3G and GPRS modems
  • Col­lect infor­ma­tion from up to 24 meters (up to 10,000 tags), process it with user-defined mathematical/logical oper­a­tions and send the new data to con­trol cen­ters through any kind of com­mu­ni­ca­tion network.
  • From meter data con­cen­tra­tion to pro­to­col con­ver­sion – full range of pro­to­cols (DNP3.0, IEC 61850 (MMS & GOOSE), DLMS, Mod­bus, IEC 60870–5‑101/102/103/104 etc.) to com­mu­ni­cate with all devices and con­trol cen­ters con­nect­ed to your elec­tri­cal network

Our secure gate­way has been designed for par­tic­u­lar­ly strong pro­to­col con­ver­sion, net­work redun­dan­cy and SCADA automa­tion (incl. IEC 61850). It is thus the per­fect choice to set up, automize or retro­fit gen­er­a­tion plants, sub­sta­tions and oth­er con­trol net­works requir­ing data con­cen­tra­tion or con­ver­sion between sev­er­al pro­to­cols, as for instance Mod­bus to Eth­er­net or IEC 61850 to DNP3.

The data col­lec­tion from meters, pro­tec­tion relays, and oth­er IEDs can be per­formed using any pro­to­col, inl­cud­ing IEC 60870–5, IEC 61850 (MMS/GOOSE), DNP3, DLMS, Mod­bus or Pro­come, whilst man­ag­ing a microsec­onds time­stamp res­o­lu­tion via NTP or PTP. Fur­ther, the iGW can also process and trans­fer the data to one or mul­ti­ple con­trol cen­ters or SCADA mas­ter sta­tions using upstream pro­to­cols such as IEC 104, IEC 101, TASE2.0/ ICCP (IEC 60870–6), IEC 61850–90‑2, DNP3, and Mod­bus RTU/TCP.

A net­work archi­tec­ture based on iGWs is open, effi­cient and scal­able, as it allows to inte­grate com­ing gen­er­a­tions of devices (IEDs, sen­sors, routers etc.) and adapt to any kind of changes made to your pow­er dis­tri­b­u­tion net­work, sav­ing you lots of time and money. 


Applications & Functions

iGW Communications

  • Up to 4 ser­i­al ports
  • Option­al inter­nal 3g, 4g and GPRS modems
  • Embed­ded Eth­er­net switch (option­al) with 3 addi­tion­al Eth­er­net ports 
    • Up to 4 Eth­er­net ports per unit
    • (2) 100BASETx + (2) FX100 fiber optics ports with PRP, HSR and RSTP redun­dan­cy

Substation Automation

  • Sub­sta­tion Gateway
  • Pro­to­col Converter
  • Sub­sta­tion PLC

Generation Plant Monitoring & Control

  • PV Plant Gateway
  • Smart Meter Gateway
  • Pro­to­col Converter
  • Load Curve Col­lec­tion & Transfer


Features & Functionalities


Full real-time sub­sta­tion equip­ment monitoring


Full IEC 61850 GOOSE & MMS integration


Inter­nal PLC based on IEC 61131–3


Full range of protocols


Alarms & events generation


High-accu­ra­cy time syn­chro­niza­tion via PTP & NTP, plus inter­nal RTC


PRP & HSR red­Box (redun­dan­cy box)


Live, remote and web based con­fig­u­ra­tion & data access


Local data stor­age freely expand­able with inte­grat­ed SD card


DLMS meter data col­lec­tion, man­age­ment, con­ver­sion and transfer


Col­lec­tion of all kinds of elec­tri­cal data from var­i­ous meters at once

iGW as Substation Gateway and Bay Control Unit

Exam­ple schema of iGW appli­ca­tions with hot-stand­by redundancy

Technical Features

Communication Ports

The iGW comes with 2 inde­pen­dent 10/100 BaseTX Eth­er­net ports (two dif­fer­ent MAC address­es, RJ45 con­nec­tor) and an inter­nal Eth­er­net switch with (2) 10/100BaseTX, (2) fiber optic FX100 sen­sors with ST, SC o SFP con­nec­tors, and RSTP /PRP /HSR redundancy.

Addi­tion­al­ly, the iGW car­ries 4 soft­ware con­fig­urable ser­i­al ports: 1 full RS-232/RS-485/RS-422 + 2 basic RS-232/RS-485/RS-422 and 1 RS-422/RS-485 port (EXP422) to con­nect iRTUe mod­els. Option­al­ly, one of the ser­i­al ports can be replaced with an inter­nal 4G(LTE), 3G and GPRS modem.

Hot-Standby Redundancy

In a hot-stand­by archi­tec­ture, the active iGW con­tin­u­ous­ly feeds the record­ed data to the redun­dant stand­by iGW to ensure that the new­ly active iGW has all the his­tor­i­cal infor­ma­tion (no data loss) when the switchover occurs.

If the active RTU detects that any IED is not able to com­mu­ni­cate, it tries to access the IED via the hot-stand­by RTU, which (in the case there was a con­nec­tion prob­lem) can pass the data to the active RTU, act­ing as a ser­i­al server.

IEC61131‑3 PLC Automation

Thanks to its inter­nal PLC based on IEC 61131–3, the iRTU can pro­vide pow­er­ful automa­tion and con­trol func­tion­al­i­ties.
For exam­ple, you can eas­i­ly reuse pro­grams on dif­fer­ent projects, run mul­ti­ple PLC instances simul­ta­ne­ous­ly or use trig­gered vari­ables for con­trol com­mands and set points. It also allows to run hot pro­gram updates, stop PLC exe­cu­tions depend­ing on the qual­i­ty of select­ed PLC inputs and debug PLCs online, either cycle-by-cycle or step-by-step.

The iRTU has a high exe­cu­tion speed – a 2000 ST line pro­gram takes less than 3ms.

Communication Protocols

The iGW was designed to use a high num­ber of pro­to­cols and com­mu­ni­cate with sev­er­al con­trol cen­ters at once.

The stack includes new­er pro­to­cols such as IEC 61850 MMS or GOOSE (A lev­el cer­ti­fied by DNV-KEMA), but also old­er stan­dard and pro­pri­etary pro­to­cols such as ModbusRTU/TCP, SpaBus or Pro­come. Oth­er sup­port­ed down­stream pro­to­cols for meters and pro­tec­tion relays are IEC 60870–5‑102/-103, IEC 62056–21 and DLMS, where­as upstream pro­to­cols for con­trol cen­ters also include IEC 60870–5‑101/-104 or DNP3.0 serial/TCP.

IP Networking

The iGW is equipped with trans­par­ent TCP bridg­ing and con­fig­urable IP rout­ing to tun­nel any ser­i­al pro­to­col (such as Mod­bus) over a TCP/IP con­nec­tion and facil­i­tate the data trans­fer through com­plex IP networks.

Its VLAN and VPN sup­port allow to improve the network’s per­for­mance, sim­pli­fy­ing its traf­fic man­age­ment, design and deploy­ment and also help­ing to secure com­mu­ni­ca­tions through par­tic­u­lar­ly haz­ardous networks.

Cyber Security – IEC 62351

iGrid enforces sev­er­al lay­ers of secu­ri­ty mea­sures guid­ed by the propo­si­tions of the IEC 62531 stan­dard to pro­tect its devices from all kinds of threats.

The iGW is a hard­ened device fea­tur­ing Role Based Access Con­trol (RBAC) to avoid intrin­sic risks such as secu­ri­ty holes and unau­tho­rized actions by authen­ti­cat­ed users.
In addi­tion to end-to-end encryp­tions via TSL/SSL, HTTPS, SSH and stan­dard pro­ce­dures for VPNs (e.g. Open­VPN), its com­mu­ni­ca­tion can also be secured with net­work con­trol meth­ods such as fire­walls, IP fil­ters, ACL or TCP port blocks.

Models Overview

iGW B0 Series

(4) Soft­ware con­fig­urable ser­i­al ports with LEDs:
(1) Full RS-232/ RS-422/ RS-485 ser­i­al port
(2) Basic RS-232/ RS-422/ RS-485 ser­i­al ports
(1) RS-422/ RS-485 ser­i­al port (EXP-422 port)
(2) 10/100BaseTX Eth­er­net ports (RJ45 con­nec­tor)
(1) USB port to con­nect periph­er­al devices
(1) MGMT port (MiniUSB con­nec­tor) for local maintenance

M Series

The M series replaces one of the ser­i­al ports with an inter­nal modem: M0 (GPRS), M1 (3G + GPRS) and M2 (4G (LTE) + GPRS)

iGW S Series 

The S Series car­ries the B0 ports and an embed­ded Eth­er­net switch (con­nect­ed to one of the two inde­pen­dent Eth­er­net ports), which provides:

S0 – (3) 10/100BaseTX RJ con­nec­tors
(2) FX100 ports with HSR/PRP redun­dan­cy and SC, ST or SFP connectors

S3 – (2) 10/100BaseTX RJ con­nec­tors and (2) FX100  ports with RSTP redun­dan­cy and SC, ST or SFP connectors


General Characteristics

Pow­er sup­ply  W : wide range, 32 — 250Vdc / 80 — 250Vac (2.5kVrms iso­la­tion)  24 : 19.5–60Vdc (2.5kVrms isolation)
MTBF 177,000h (one hun­dred sev­en­ty sev­en thou­sand hours)
Envi­ron­men­tal Oper­at­ing tem­per­a­ture: ‑25ºC to +70ºC — IEC 60068–2‑1, IEC 60068–2‑2, IEC 60068–2‑3, IEC 60068–2‑14, IEC 60068–2‑30, IEC 60068–2‑38
Vibra­tion & shock test IEC 60068–2‑6, IEC 60068–2‑7
Phys­i­cal  Exter­nal dimen­sions: 173 x 78.4 x 137 mm (HxWxD) IP30 enclo­sure with DIN Rail mounting

iGComms Software Application

Redun­dan­cy deploy­able on a hot-stand­by con­fig­u­ra­tion, option­al redun­dant pow­er supply
Secu­ri­ty IEC 62351–3 and IEC 62351–5 sup­port, includ­ing TLS/SSL, SSH and VPN connections
IEC61131‑3 automa­tion log­ic and PLC pro­gram­ming, with LD, FBD, ST and SFC editor
LUA lan­guage can be used to cre­ate sim­ple and com­plex log­ic and math­e­mat­i­cal expressions

EMC Standards

IEC 60950–1, IEC 60255–5:2000, IEC 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

Protocol Stack

Master/Slave IEC 60870–5‑101

Mas­ter IEC 60870–5‑102

Mas­ter IEC 60870–5‑103

Master/Slave IEC 60870–5‑104

Master/Slave DNP3.0 (ser­i­al, UDP, TCP)

Master/Slave Mod­bus­R­TU

Mas­ter Profibus DP Master/Slave

Mod­bus TCP/UDP and JBUS (mas­ter) 

Mas­ter IEC 62056–21

Mas­ter DLMS

Mas­ter Spabus, Mlink, Procome

SNMP Agent/Manager

IEC 61850 MMS Client/Server

IEC 61850 GOOSE Publisher/Subscriber

Communication Ports & CPU

Ser­i­al up to 4 soft­ware con­fig­urable ports with RS232/RS485/RS422
Eth­er­net (2) 10/100BaseTX ports with inde­pen­dent MAC addresses
Wire­less full inter­nal 4G(LTE), 3G and GPRS modem (option­al)
Eth­er­net switch (S series) up to (4) 10/100BaseTX ports with RJ45 con­nec­tion and (2) FX100 with ST, SC con­nec­tors or SFP inter­face, and sup­port­ing RSTP, HSR and PRP configurations
CPU ARM Cor­tex-A7 @ 528MHz, with 4GBytes Flash and 256MBytes RAM.

Simple Configuration with iConf

iConf has been specif­i­cal­ly devel­oped for elec­tri­cal appli­ca­tions, sav­ing you lots of time and mon­ey through­out the con­trol sys­tem set-up and main­te­nance tasks, whilst also min­i­miz­ing your project risks. Upload and down­load your con­fig­u­ra­tions, import or scan SCL files (61850) and cre­ate your own tem­plates.

Configuration & Maintenance

Easy con­fig­u­ra­tion with iConf tool
Inter­nal web serv­er, allow­ing real time mon­i­tor­ing of the sys­tem and all its inter­nal parameters
Com­mand con­sole with full infor­ma­tion on pack­et exchanges, with all avail­able protocols
Local or remote main­te­nance via USB or Eth­er­net port

RTC & Time Synchronization

Real-time Clock (RTC) with 1.5 ppm drift and microsec­ond res­o­lu­tion timestamp

Serv­er NTP, IEC 60870–5‑101, IEC 60870–5‑104, DNP3.0, PTP

Client IEEE1588(PTP), SNTP, IEC 60870–5‑101, IEC 60870–5‑102, IEC 60870–5‑103, IEC 60870–5‑104 DNP3.0, DLMS, Spabus, Mlink, Pro­come and Profibus DP

Meet the Family

iRTU – The iGW with Integrated I/Os

The iRTU is an intel­li­gent and scal­able bay con­troller with inter­nal and con­fig­urable I/O capa­bil­i­ties for direct data acqui­si­tion, pow­er­ful pro­to­col con­ver­sion (incl. IEC 61850), high-pre­ci­sion time­stamp­ing and an option­al embed­ded Eth­er­net switch.

iGWlite – The “Lite” Version of the iGW

The iGWlite comes with 1 Eth­er­net, 1 RS485/RS422 and an option­al RS-232 port (cop­per or fiber) or a 2G/3G/4G modem tak­ing lit­tle space on a DIN-Rail, but still employ­ing the full iGrid pro­to­col stack.

iGW-VM – For Unlimited Scalability on Any Device

For every­one who wants the the soft­ware func­tion­al­i­ties of the iGW, but has a preferred hard­ware or is look­ing for high scal­a­bil­i­ty with exist­ing devices, there is the iGW-VM. It can run on Lin­ux or Win­dows servers and pro­vides unique fea­tures and flexibility.

Any questions?

    I have read and accept the Pri­va­cy Pol­i­cy*

    All per­son­al data that you sub­mit us via this form will be processed by Data Con­troller IGRID, S.L. and saved into CONTACTS pro­cess­ing activ­i­tie, with the pur­pose of answer­ing your inquiry, via email or phone, and for a lat­er fol­low up. Pro­cess­ing shall be law­ful because you give us your con­sent for these spe­cif­ic pur­pos­es. Your per­son­al data will not be dis­closed to third par­ties unless forced by law. You have right to access to, rec­ti­fy, or delete your per­son­al data, and oth­er rights as explained in our Pri­va­cy Policy

    Sub­sta­tion Automation

    Auto­mat­ic Gen­er­a­tion Control

    Pro­to­col Conversion

    Sub­sta­tion Data Acqui­si­tion and Control

    Elec­tric­i­ty Dis­tri­b­u­tion Networks

    PV Plant Remote Control/Monitoring

    Wind Farm Gen­er­a­tion Control

    Sub­sta­tion Gateway

    Intel­li­gent Load Shedding

    Hydro­elec­tric Plant Control

    Data Acqui­si­tion Gateway

    Rail­way Con­trol Unit

    HV Substation Automation with IEC 61850

    In this HV sub­sta­tion automa­tion project the iGW-S3 (Eth­er­net switch mod­el) enables the upgrade to IEC 61850, com­mu­ni­cat­ing with the Pro­come pro­tec­tion relays and map­ping all their infor­ma­tion (includ­ing sig­nals, alarms, mea­sures and com­mands) into IEC 61850 log­i­cal devices.

    Smart Metering Protocol Converter

    In this project the iGW was deployed by a major meter man­u­fac­tur­er in over 150 gen­er­a­tion plans, con­cen­trat­ing 8 high-end meters through DLMS as well as map­ping and send­ing the data to the con­trol cen­ter via the IEC60870‑5–104 and Mod­bus RTU.

    Railway MV Substation Control

    In this project the iGW con­verts from IEC 101 to IEC104 in order to com­fort­ably expand the SCADA sys­tem of the metro lines, using high tech­nol­o­gy switch­es and SDH equip­ment via Eth­er­net. The iGW con­trols the low pow­er sub­sta­tions (380 Volt­age grid) by read­ing the data from a SIEMENS PLC via IEC 101, map­ping it to IEC104, and send­ing it to the exist­ing SCADA Con­trol Center.

    iRTUe – Remote I/O Extensions 

    iGWs, iRTUs and third par­ty mas­ter units can be freely extend­ed by con­nect­ing one or sev­er­al iRTUe.

    They are IEC 61850 (GOOSE) com­pli­ant and come in many con­fig­u­ra­tions such as 48 DI, 16 relays, 16 AI, 24 DI + 8 relays, 24 DI + 8 AI or 8 relays + 8 AI.

    iControl SCADA

    High-per­for­mance SCADA for the visu­al­iza­tion and con­trol of sub­sta­tion data. It is able to run either in client/server or stand­alone modes, pro­vid­ing advanced func­tion­al­i­ties such as hot-stand­by redun­dan­cy, auto­mat­ic line col­or­ing, events noti­fi­ca­tion (via e‑mail and sms), SQL log­ging, and reports generation.

    Sub­sta­tion Automa­tion with IEC61850

    HV Sub­sta­tions

    MV Dis­tri­b­u­tion Grids

    Rail­way Automation

    Pro­to­col Conversion

    Smart Meter­ing

    Wind Farm Generation

    Hydro­elec­tric Generation

    Pho­to­voltaics Generation

    Do you need more information?

    We are hap­py to assist you!


    +34 93 502 79 84

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    08:00h to 17:00h

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      I have read and accept the Pri­va­cy Pol­i­cy*

      All per­son­al data that you sub­mit us via this form will be processed by Data Con­troller IGRID, S.L. and saved into CONTACTS pro­cess­ing activ­i­tie, with the pur­pose of answer­ing your inquiry, via email or phone, and for a lat­er fol­low up. Pro­cess­ing shall be law­ful because you give us your con­sent for these spe­cif­ic pur­pos­es. Your per­son­al data will not be dis­closed to third par­ties unless forced by law. You have right to access to, rec­ti­fy, or delete your per­son­al data, and oth­er rights as explained in our Pri­va­cy Policy