iGWlite – Smart, Slim and Simple.
A compact data concentrator and protocol converter for substations and power plants- Secured, adaptable and modular communication gateways specifically designed for electrical facilities and electricity distribution systems
- Takes almost no space on a DIN-rail
- 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
- 1 Ethernet & 1 RS485/RS422 port and an optional RS232 port (copper or fiber) or 2G/3G/4G modem.
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 iGWlite can also process and transfer the data to one or multiple control centers and 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 supported by an iGWlite is open, simple and scalable, allowing 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 time, money and space on your DIN-Rail.
Applications & Functions

Smart Meter Gateway
- PV Plant Gateway
- Smart Meter Gateway
- Substation Gateway
- Protocol Converter
- Load Curve Collector
Full plant & substation equipment monitoring
Collection of all kinds of electrical data
Live remote and web based unit access
Alarms & events generation

HV & MV Substation Automation
- Substation RTU
- Feeder Remote Terminal Unit (FRTU/ FDCU)
- Substation Gateway
IEC 61850 protocol conversion
Full real-time substation equipment monitoring
Alarms & events generation
Live, remote and web based configuration & data access
Internal PLC based on IEC 6113–3
iGW as Substation Gateway and Bay Control Unit
Example schema of iGW-lite operating as meter and protection gateway

Technical Features
IEC 61850 MMS
The iGWlite can be used as a simple link between serially connected physical devices and logical IEC 61850 devices as it can be simply configured to map any signal from all sorts of data models onto IEC 61850 logical nodes, whilst also providing IEEE1588 / PTP time synchronization.
Thanks to its full iGrid protocol stack, the iGWlite can convert any standard or legacy protocol such as IEC 60870–5‑103, SPAbus, Modbus, DLMS to IEC61850, making it compatible with hundreds of vendors.
Standards and Compliance
The diverse backgrounds of our partners and clients from all over the world have helped us gather state-of-the-art know-how and firsthand experience in a great variety of energy applications. This joined knowledge is the foundation of our optimized iRTU/GW family, which has a proven track record of being particularly effective and resistant for a diverse range of applications and harsh environments belonging to the energy industry.
As a result, the iGWlite meets the requirements of extensive standards, such as IEC61850‑3, IEC60870‑2–1 & IEC60255-26.
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.
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.
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, Profibus, SpaBus, Mlink 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.
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 iGWlite 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
iGWlite B Series
B#01 – (1) 10/100BaseTX (RJ45 connector) and (1) configurable serial port RS-232/RS-485/RS-422
B#11 – (1) 10/100BaseTX (RJ45 connector) and (2) configurable serial ports RS-232/RS-485/RS-422
iGWlite M Series
The M series combines the B#01 ethernet and serial ports with one of the following modems: M01 (GPRS), M11 (3G + GPRS) and M21 (4G/LTE + GPRS)
Specifications
General Characteristics
Power supply W : wide range, 32 — 250Vdc / 80 — 250Vac 24 : 19.5–60Vdc (both 2.5kVrms isolation) |
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 DIN Rail mounting |
iGComms Software Application
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 2 software configurable ports with RS-232/RS-485/RS-422 or multimode fiber optic with ST connector |
Ethernet (1) 10/100BaseTX ports with RJ45 |
Wireless full internal 4G(LTE), 3G and GPRS modem (optional) |
CPU ARM Cortex-A7 @ 528MHz, with 4GBytes Flash and 256MBytes RAM. |
Simple Configuration with iConf
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




iGW – For More Complex Projects
The iGW is a powerful and reliable substation gateway, able to run either in standalone or redundant modes, carrying 4 serial ports and an (optional) embedded Ethernet switch for 2 additional Ethernet ports (total of 4).

iRTU – The Gateway 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.

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.
iGrid Protocol Suite

iGW Family References

Any questions?
iGWlite Applications
Automatic Generation Control
PV Plant Remote Control/Monitoring
Wind Farm Generation Control
Protocol Conversion
Substation Data Acquisition and Control
Electricity Distribution Networks
Substation Gateway
Hydroelectric Plant Control
Data Acquisition Gateway
Railway Control Unit
iRTUe – Remote I/O Extensions
iGWs and iRTUs can be freely extended by connecting 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
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