SG-gateway with 4-Port Switch and EtherNet/IP
Multi connectivity in industrial and energy automation with cloud connection – in one small device
The SG-gateway supports the communication protocols used in the energy sector, including IEC60870-5-104 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.
The EtherNet/IP interface for Allen-Bradley PLCs is a real-time adapter interface with integrated 2-port switch that enables seamless network integration.
By combining EtherNet/IP, 4-port switch, another Ethernet interface and a serial interface, the SG-gateway offers enormous flexibility in network design and cyber-security through the simple and secure separation of the different network segments.
In addition to the IEC61850 and IEC 608710 protocols, other electric equipment in the field can also be connected via Modbus TCP and RTU.
FEATURES & BENEFITS
- Connects intelligent electrical devices (IEDs) with IEC protocols via EtherNet/IP or Modbus to PLC systems for industrial automation
- Easy way to transfer I/O data from electrical devices in the field to SCADA systems or cloud systems
- Connects industrial machines and PLCs to energy switchgears and energy SCADA systems as well as to cloud systems
- Easy way to route and convert different protocols in any direction
- Separate communication channels in the device enable secure network separation
- Supports several communication protocols (IEC61850, IEC60870-5-104, Modbus, OPC-UA, MQTT)
- Connectivity via Ethernet or via optional 4G/LTE 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 or remote
- Easy export and import of configuration to ease volume installations
ETHERNET/IP INTERFACE
- Support of the generic device profile
- Two-port cut-through switch
- Device Level Ring (DLR) on beacon basis
- Supports QuickConnect class B
- Support of CIP energy objects
- Customized identity information
- Up to 128 groups
- Up to 509 bytes of process data in each direction when using the Forward Open command
- Up to 1448 bytes of process data in each direction when using the Large Forward Open command
- Support for multiple I/O boards
- Modular device support
- 2 x RJ-45 EtherNet/IP 100 Mbit/s ports simultaneously available
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 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
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
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
WIRELESS 4G/LTE MODEM (OPTIONAL)
- Send and receive SMS
- Remote access to the control room via IEC60870-5-104 or IEC61850 protocols
- Uplink up to 5 Mbps
- Downlink up to 10 Mbps
- Mini SIM (2FF)
- Variant for Europe:
- 2G bands: B3/B8 (1800/900 MHz)
- 3G bands: B1/B3/B8 (2100/1800/900 MHz)
- 4G bands: B1/B3/B7/B8/B20/B28A (2100/1800/2600/900/800/700 MHz)
- Variant for North America:
- 3G bands: B2/B4/B5 (1900/1700/850 MHz)
- 4G bands: B12/B14/B4/B2/B5/B13/B66/B71 (700/700/1700/1900/850/700/1700/600 MHz)
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•W•H) |
79 x 65 x 107 mm with included connectors plugged |
Weight |
450 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 |
250 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 |
EtherNet/IP interface |
EtherNet/IP Adapter, cut-through switch with 2 ports 10/100 BaseT |
Serial interface |
1 x RS232/RS485 (selectable), Weidmüller BL 3.50/08 (included) |
SD-card |
microSD card SD/SDHC, push/push slot |
Optional modem |
4G/LTE modems for Europe or North America, antenna for SMA socket not included (in the accessories section you will find the matching antenna) |
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 |
Config method |
Integrated webserver |
Certifications |
CE, cUL |
Ordering information
Order Code |
ASG2121 ((IEC60870-5-104 Client/Server + IEC61850 Client/Server + 4G/LTE for North America) |
Additional Order Codes |
ASG2120 ((IEC60870-5-104 Client/Server + IEC61850 Client/Server + 4G/LTE for Europe)
ASG2106 ((IEC60870-5-104 Client/Server + IEC61850 Client/Server) |
Included components |
4 GByte microSD memory card
Power connector (Weidmüller BL 3.50/3)
Serial connector (Weidmüller BL 3.50/8)
CAN connector (Weidmüller BL 3.50/04)
(power supply and antenna NOT included) |
Accessories |
ISG9500-C (3G/4G antenna with SMA connector) |
Required software |
Ixxat IP configurator (for IP configuration - Freeware)
Downloadable under Support | Files and Documents |