iGW-VM – Substation Automation Software
Any hardware runs smoothly with the scalable and easy-to-use iGW-VM automation software.- Porting to Linux & Windows platforms, from servers to embedded systems
- Redundant hot-standby architecture
- Watchdog and RTC functionalities
- Extremely scalable and adaptable to any particular present and future needs
- Simple configuration with iConf tool
- Secured with IEC62351 cyber security standard
- PLC automation with IEC61131‑3
- Numerous communication configurations to freely adjust to substation requirements
- Simple integration of I/O modules from the iRTU family
Our substation automation software has been developed to control and monitor any substation (HV & MV). It supports all architectures based on Windows or Linux servers, as well as embedded controllers, acting as a substation gateway, bay controller, RTU or communication front-end for SCADA systems.
The data collection from meters, protection relays, and other IEDs can be managed using any protocol, inlcuding IEC 60870–5, IEC 61850 (MMS/GOOSE), DNP3, DLMS, Modbus or Procome. Further, the iGW-VM 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.
Amongst its state-of-the-art features, the iGW-VM is able to provide load shedding functionalities, high accuracy time stamping/processing (<1ms accuracy) as well as straightforward PLC programming/automation according to IEC 61131–3 via the free iConf tool.
Applications & Functions
iGW Communication Front-end
- Up to thousands of IED
- Up to 150.000 Tags
- Connectable to 8 master stations
Substation Automation
- Main Substation Gateway
- Protocol Converter
- Substation PLC
- Transformer Front-end
- Switchgear Front-end
- Substation Automation Hub
Generation Plant Monitoring & Control
- Smart Meter Gateway
- Meter Management System Front-End
- 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-VM as Substation Gateway
Example schema of iGW-VM operating as substation gateway with hot-standby redundancy

Technical Features
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.
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-VM features 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.
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.
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.
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.
iConf – One Configuration Tool for Everything
iGrid products, including devices operating with iGW-VM can all be locally and remotely configured and maintained via USB or Ethernet, using iGrid’s free iConf tool or standard software tools such as telnet. Alternatively, configuration data can be up– or downloaded via USB flash drive, FTP manager or iConf.
We recommend using the iConf tool because it 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.
Specifications
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 |
General Characteristics
Easy configuration with iConf tool |
Command console with full information on packet exchanges, on all available protocols |
Local or remote maintenance via USB or Ethernet port |
Operating System OS Linux or Windows based servers |
Command console with full information on packet exchanges, on all available protocols |
Internal web server, allowing real time monitoring of the system and all its internal parameters |
Communication Ports Ethernet and serial port management |
iGComms Software
LUA language & iConf can be used to create simple and complex logic and mathematical expressions |
Security IEC 62351–3 and IEC 62351–5 support, including TLS/SSL, SSH and VPN connections |
IEC 61131–3 automation logic and PLC programming, with LD, FBD, ST and SFC editor |
Redundancy iGComms includes redundant architectures using hot-standby configuration |
COMTRADE file transfer from IEC 61850 IEDs to control center |
I/O modules simple integration of iRTUe |
Licensing USB license based on number of connections, tags and functionalities |
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 |
This Is What You Get
when you combine powerful software with optimized and flexible hardware.




iGW – The Same Software in Its Favorite Case
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).

iGWlite – The “Lite” Gateway
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.

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.
iGrid Protocol Suite

Any questions?
Despite its focus on substation automation, the iGW-VM can also be used to tackle a broad variety of other remote control and data acquisition challanges:
Substation Automation Software
Generation Control Software
Wind Farm Control
Electricity Distribution Networks
Protocol Conversion
Substation Data Acquisition and Control
Substation Gateway
Intelligent Load Shedding
Data Acquisition Gateway
Railway Control Unit
PV Plant Monitoring
Hydroelectric Power Plant Control
HV Smart City Maintenance System
In this project the iGW-VM communicates with over 1 million I/O points from over 200 HV and 6000 MV substations to signficantly reduce the number of incidents. The iGW speeds-up maintenance reaction times by informing staff immediately, regarless of time and place, sending daily reports and real-time data through the web.
Communication Front-End for Smart Metering Application
In this project the IGW-VM monitors and controls thousands of meters, collecting all their data, including load profiles, through several protocols (e.g. Modbus, IEC60870‑5–102 and DLMS) and delivering it to a metering application using JSON webservices

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.

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.
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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