XPG – Gateway / RTU / Protocol Converter

XPG is a product line used for all data acquisition, exchange, and processing applications. XPG offers multiple protocol conversion possibilities and is designed specifically for DSO, TSO, and utilities infrastructures.

XPG is based on a firmware (software solution and an operating system) developed by Elvexys. Several hardware formats as well as a virtual machine are available.

From a dozen data points in the wild, a few hundred or thousands in a substation to tens of thousands in a data centre, XPG is the scalable solution with a high level of cybersecurity that will meet your needs.

Hardware or virtual machine

Different format and mounting. Capacity, performance, and budget according to the need. With different models and virtual machine, XPG adapts to your applications.

Use cases

Substation real-time RTU / Gateway

To exchange signals, measurement, setpoints, commands, files… between IED, RTU, Meter, PLC, … and the network control centre and/or the local SCADA

To collect COMTRADE, PQDIF files, data files, log files, measurement, device use and health informations, … and provide them to:

•  IT/OT monitoring system

• Power System Monitoring

• Data Analysis Solution (BI)

To collect:

• Measurements

• Switchgear positions

• Fault indications and detections

• Power Quality or disturbance indications and files

• Information or alarms from auxiliary and general services

And to remotely control the switching devices when the infrastructure allows it.



To concentrate, normalise and organise data according to a clear architecture or cybersecurity requirement

To concentrate data from multiple sources or acquisition ways to:


•  IT/OT monitoring system

•  Power System Monitoring

•  Data Analysis Solution (BI)

•  Data lake

To exchange datapoints and/or files between DSO/TSO at NCC level or Substation level

Power plant RTU / Gateway

To exchange signals, measurements, setpoints, commands, files... between PLC, Meter, Sensors... and

•  SCADA network control centre

•  Centralised control solution

•  local SCADA

•  IT/OT monitoring system

•  Data Analysis Solution (BI)

Wild area gateway to collect data on remote infrastructures

•  Water supplies, tanks, and collectors

•  Weather stations and environment measurements

DER gateway to exchange datapoints or collect files to SCADA, monitoring system, Data Analysis Solution from

•  Solar plant (PV inverter)

•  Wind turbine

•  Biogas plant

•  Mini hydraulic plant

•  ...

•  Meter concentrator to transmit the datapoints from meters to the management and invoicing solution

•  Monitoring real-time gateway / RTU to exchange datapoints from PLC, valves, and sensors with the SCADA system

•  Data concentrator to collect data from several networks and generation plants and transit them to a central supervision or management application

•  Local RTU / gateway and supervision

•  Network supervision

MQTT gateway

•  To transmit data from wired sensor to MQTT broker

•  To convert data from non MQTT device (e.g. sensor, PLC, RTU. OPC-UA to MQTT, Modbus to MQTT, IEC 60870-5-104 to MQTT, ...)

•  To convert data from MQTT to other protocols (MQTT to OPC-UA, MQTT to IEC 60870-5-104, ...) or file transfer or API REST

Edge computing / Cloud computing

•  As a virtual data processing service embedded in edge computer, edge node, switch, specific device, ...

•  As an edge node to process and convert data locally

•  As a data process and visualisation appliance in the cloud


To standardise and convert data from public or private LoRaWAN network to


•  Analysis (BI) solution

•  Billing appliance

•  ...

•  To create a mini LoRaWAN® network in combination with Arolys

In MV or HV Bay

•  To complete or extend an IED in BCU

•  For a second acquisition way in parallel to the IED

In MV or HV substation

•  For general and auxiliary services

(Measurement and information of electrical power, air conditioning, ventilation, heating, elevator, ... Detection of intrusion, fire, flood, ... Management of horns and light signals)

In MV/LV substation

•  To exchange signals, measurements, setpoints, commands, files… between primary equipment (e.g. switchgear), IED, RTU, Meter, PLC, … and the network control centre

RCP - Regroupement dans le cadre de la consommation propre / ZEV - Zusammenschluss zum Eigenverbrauch

Meter concentrator to transmit the datapoints from multiple meters, sensors, inverters, EV chargers to the management and invoicing solution

Protocol converter:

•  Between PLC, application, software solutions, SCADA system

Communication Front End

•  To concentrate and separate data according to a clear architecture or cybersecurity requirement

DSO: Control of solar energy production

• Control and monitor inverters remotely and securely

• Communication with inverters or local data logger

• Clear and secure boundary between the DSO and producer infrastructure

• Secure communication with the control centre, SCADA or analysis solutions through multiple protocols

See also:   XPG Gateway for control of solar production by DSO

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HTTP(S) Server

LDAP Client

LDAP-S Client (TLS 1.0, 1.1, 1.2)

LoRaWAN® interface to NS

NTP Client/Server


SFTP Server

SNMP Agent (v2c, v3)

SNMP Client (v2c, v3)

SSH Server

Syslog Client

VPN (OpenVPN, IPSec)



IEC 61850 Sampled values



VPN (WireGuard)


XPG is certified on the standards IEC 61850 and IEC 60870-5-104 by DNV-GL

Hardware certifications depend on the model (CE, IEC 61850-3, IEEE 1613, IEC 60255, CE, FCC, EN 55032/5, EN 61000-6-2/3, EN/UL/IEC 62368-1)


Cybersecurity is at the heart of the design of XPG.

Numerous features ensure a high level of cybersecurity (Secure boot, Access and users rights, policies, VPN, port management, firewall, …).

XPG is designed to be easily monitored by IT system (SNMP, LDAP, RADIUS. Syslog,…)

To provide and maintain a high level of cybersecurity XPG follows the IEC 62443, NERC CIP, BDEW, VSE recommendations.

Our staff is continuously trained on best practices and our cybersecurity specialists closely monitor the evolution of the field and the vulnerability announcements to inform users and make swift corrections when needed.

XPG is also regularly tested and audited by utilities, TSO, or DSO cybersecurity team.