SG-gateway with PROFINET

Bridging the gap between industrial and energy communication

The SG-gateway supports the communication protocols used in the energy sector, including IEC60870-5-104, DNP3 and IEC61850 and enables connectivity for energy devices to PROFINET-based automation systems. On top of that the simultaneously usable OPC-UA and MQTT functionality empower direct integration into the companies’ cloud-based applications.

The PROFINET interface for Siemens-PLCs implements an isochronous real-time PROFINET device interface with an integrated 2-port switch, allowing seamless network integration regardless of network topology.

In addition to PROFINET, IEC and DNP3 protocols, other electric equipment in the field can also be connected via Modbus-TCP and RTU. As an option, the SG-gateway can also include a 3G modem for remote connectivity.


Features & benefits

  • Connects intelligent electrical devices (IEDs) with IEC or DNP3 protocols to industrial automation PLC systems using PROFINET or Modbus.
  • Easy way to transport I/O data from electrical equipment in the field to SCADA systems
  • Connects industrial machines to energy SCADA systems
  • Connects switchgear to industrial PLCs
  • Supports several communication protocols (IEC61850, IEC60870-5-104, DNP3, Modbus, OPC-UA, MQTT)
  • Connectivity via Ethernet or via optional 3G modem
  • Easy web-based configuration using any standard browser
  • Onboard WebPLC for easy data conversion and control functions
  • Robust metal housing for stand-alone operation with DIN rail mounting
  • Global technical support and consulting services
  • Range of cybersecurity features including password protection, user management, and OpenVPN
  • Continuous software maintenance by HMS, devices can be upgraded in the field
  • Easy export and import of configuration to ease volume installations

PROFINET interface

  • PROFINET-IO Real-Time (RT) Class 1 & 3 communication V 2.31
  • Max 1440 bytes of Input and 1440 bytes of Output data
  • Up to 128 modules
  • Baud rate 100 Mbit/s fixed
  • SNMP-MIBII support
  • Generic and PROFINET specific diagnostic support
  • Supports PROFIenergy profile
  • Supports Media Redundancy Protocol (MRP)
  • Device identity customization
  • Supports PROFINET Fast Start Up
  • PROFINET uplink configuration via GSDML file
  • Integrated IRT switch enabling a daisy-chain topology
  • Dual RJ-45 network ports available simultaneously

Additional interfaces

Ethernet Interface

  • 10/100 Mbit/s
  • DHCP server
  • SNTP
  • NAT routing
  • SNMP manager

Serial Interface

  • Selectable RS-232/485
  • Serial baud rate 300 bps – 187,5 kbps


  • OpenVPN client
  • TLS version 1.3 data encryption
  • Integrated Firewall
  • Password protection with password policy
  • Support for user roles
  • Root access authentication
  • Usage of standard ports for easy integration into firewalled environments
  • Encrypted and signed files for firmware-updates
  • Password protection for configuration export & import


  • Supports Modbus TCP Client/Server
  • Connects up to 128 server devices and supports 4096 values


  • Supports Modbus RTU Master/Slave
  • Connects up to 128 serial Modbus RTU slave devices and supports up to 4096 values

DNP3 (Optional)

  • Outstation: 1 TCP link, up to 4 local/master links
  • Up to 4096 data objects (each data object with value, quality and timestamp)

IEC61850 (optional)

  • Client/Server
  • Goose Publisher/Subscriber
  • Up to 4096 data objects (each data object with value, quality and timestamp)
  • 32 server devices supported in Client configuration

IEC60870-5-104 (optional)

  • Client/Server functionality
  • Up to 4096 data objects (each data object with value, quality and timestamp)
  • 32 server devices supported in Client configuration
  • Support for IEC60870-5-104 redundancy according to Norwegian User Convention

3G/UMTS Modem (optional)

  • SMS Send and Receive
  • Telecontrol access to the control room communicating IEC60870-5-104 or IEC61850 remote telecontrol protocols
  • GSM/GPRS Quad band 850/900/1800/1900 MHz
  • UMTS Seven band: 800/850/900/AWS 1700/1900/2100 MHz
  • Mini SIM (2FF)
  • The Ixxat SG-gateway Switch with PROFINET is also available with integrated 4G/LTE modem


  • Micro Embedded Device Server Profile
  • UA-TCP, UA-SC, UA-Binary protocol and encoding
  • Up to 128 groups, 4096 values
  • Up to 4 concurrent client sessions


  • Client version 3.1 and 3.11
  • Flexible for own definition of payloads
  • Last will, QoS, Keep alive interval
  • TLS encryption

Configuration interface

The application logic can be realized on the device either using the integrated graphical web editor or by using a predefined configuration loaded to the device. The graphical web editor is a very intuitive and easy to use interface to program software applications and configure the gateway. No engineering tools are required and it can easily be accomplished by service technicians.

Configuration Interface

Technical specifications

Dimensions (L x W x H)79 x 46 x 107 mm with included connectors plugged
Weight350 g or 0.8 lbs
Operating temperature0 to +55 °C or +32 to +131 °F
Enclose materialPowder-coated, aluminum-zinc hot-dipped steel, RAL 7021
Power supply24 VDC (+/- 15%); Weidmüller BL 3.50/03 (connector included)
Current consumption200 mA at 24 V DC / with modem: 240 mA at 24 V DC
Ethernet interface1x 10/100 BaseT RJ45, link and traffic LED indicators
PROFINET interface2 x RJ45, PROFINET-IO Real-Time (RT) Class 1 & 3 communication V 2.31 with integrated IRT switch
Serial interface1 x RS232/RS485 (selectable), Weidmüller BL 3.50/08 (included)
SD-cardmicroSD card SD/SDHC, push/push slot
Optional cellular modem3G Tri Band UTMS modem (Antenna not included. See accessories for recommended antenna with SMA plug.)
Mechanical ratingIP20, NEMA rating 1
MountingDIN-rail (EN 50022 standard)
Always included protocols Modbus TCP Client/Server, Modbus RTU Master/Slave, OPC-UA Server, MQTT Publisher/Subscriber, Kolibri (for HMS Hub connectivity)
Optional protocols IEC61850 Client/Server, IEC60870-5-104 Client/Server, DNP3 Outstation
Config method Integrated webserver
CertificationsCE, cUL, KC, FCC*
KC only for variants without wireless modem (3G)
** FCC for devices with wireless modem (3G)

Order information

Order Information

Ixxat SG-gateway – the right choice for your energy distribution application!

Fields of application

Integration of components with IEC 61850, IEC 60870-5, DNP3, Modbus and GPIO interfaces into modern control rooms or industrial controllers from Siemens or Rockwell Automation. The Ixxat SG-gateways can either be used as versatile data gateways but also as miniature RTU with included data processing and control functions.

  • Substations  
  • Power plant components
  • Energy storage
  • Photovoltaic systems
  • Measuring instruments
  • and many more

All you need in one device

  • Flexible and unrestricted configuration of data flow between all available protocols
  • Multiple usage of available data through OPC-UA and MQTT compatibility
  • Optional remote access for configuration updates
  • Protocol conversion, data modification, alarms up to complex logic implementation
  • Several security mechanisms, including password protection, OpenVPN and TLS, to protect your data and network

Configuration – easy and intuitive

  • Adaptation and processing of data using a graphical programming interface
  • Simplified configuration by using wizards
  • Fast installation and adjustment of parameters in the field since no additional tools are required
  • Fast plug & play installation after configuration
Fields of Application