SG-gateway with 4-Port Switch
Multi connectivity in one small device
The SG-gateway supports the communication protocols used in the energy sector, including IEC60870-5-104, DNP3 and IEC61850 and enables connectivity for numerous different energy devices in different networks. On top of that the simultaneously usable OPC-UA and MQTT functionality empower direct integration into the companies’ cloud-based applications.
The 4-port switch enables routing of any of the Ethernet-based protocols between 2 separate IP networks.
In addition to the IEC and DNP3 protocols, other electric equipment in the field can also be connected via Modbus TCP and RTU.

Features & benefits
- Easy way to route and convert different protocols in any direction
- Supports several communication protocols (IEC61850, IEC60870-5-104, DNP3, Modbus, OPC-UA, MQTT)
- Connectivity via Ethernet
- 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
4-Port Switch
- Hardwired to second internal Ethernet interface
- All Ethernet-based protocols and features are also available via the integrated switch
- 4 x RJ45 10/100BaseT connectors
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
SECURITY FEATURES
- 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
MODBUS/TCP
- Supports Modbus TCP Client/Server
- Connects up to 128 server devices and supports 4096 values
MODBUS RTU
- 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
OPC-UA
- 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
MQTT
- 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.

Technical specifications
Dimensions (L x W x H) | 79 x 46 x 107 mm with included connectors plugged |
Weight | 350 g or 0.8 lbs |
Operating temperature | 0 to +55 °C or +32 to +131 °F |
Enclose material | Powder-coated, aluminum-zinc hot-dipped steel, RAL 7021 |
Power supply | 24 VDC (+/- 15%); Weidmüller BL 3.50/03 (connector included) |
Current consumption | 120 mA at 24 V DC |
Ethernet interface | 1x 10/100 BaseT RJ45, link and traffic LED indicators |
Switch | 4 x 10/100BaseT RJ45, connected to second internal Ethernet interface |
Serial interface | 1 x RS232/RS485 (selectable), Weidmüller BL 3.50/08 (included) |
SD-card | microSD card SD/SDHC, push/push slot |
Mechanical rating | IP20, NEMA rating 1 |
Mounting | DIN-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 |
Certifications | CE, cUL, KC |
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
