Edge Gateway for IT/OT Coupling of Siemens and Modbus Controllers to IoT Solutions

edgeGate offers bidirectional data exchange between industrial networks and IT applications locally and in the cloud. It connects up to five Siemens and Modbus TCP controllers to superimposed systems via the OPC UA and MQTT interfaces. It supports the use of a large number of different cloud providers. Thanks to its conformity with the OPC UA standard, its simple configuration and its security functions, the gateway is particularly suitable for small network solutions that can be expanded over time.

edgeGate offers particularly deep Microsoft Azure Cloud integration. For this purpose, the applications IoT Edge OPC Publisher and IoT Edge OPC Proxy provided by Microsoft have been implemented. For parameter setting a graphical user interface is provided. The result is a simple connection to Azure IoT Hub, Azure IoT Edge, Azure IoT Central or Azure IoT Connected Factory.

OPC Competence Brochure

* when using Microsoft Azure Connected Factory


Connection of IoT Hubs from Different Vendors With Siemens and Modbus PLCs

  • Adjustable topic settings for MQTT payload according application requirements
  • Chance for analytics, storage, computing applications in cloud solutions from different vendors
  • Integration of OPC UA and MQTT client applications running on-premise as well as in private and public clouds
  • Worldwide remote access to field data
  • Suited to new applications such as IoT or analytics functionality while dedicated to retrofit upgrades
  • No PLC programming necessary
  • Symbol import from STEP 7 and TIA Portal projects
  • No software updates, operating system patches and PC updates required

Comprehensive Integration with Microsoft Azure Applications

  • Direct data access from Microsoft Azure to Siemens and Modbus PLCs
  • Bidirectional data exchange between cloud and shopfloor by accessing OPC UA Servers on edgeGate or in OT network via integrated Microsoft OPC Proxy and Publisher components

Industry-proven Security

  • Physically separated interfaces and separate configuration rights for OT and IT networks preventing intrusions
  • Supporting security standards as SSL/TLS and X.509 certificates
  • OPC UA compliant data encryption and user authentification

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Technical Details


HardwareProcessorAltera Cyclone V SoC with Dual-core ARM Cortex-A9
 Connectors2 x IEEE 802.3 100BASE-TX/10BASE-T (independent interfaces)
 Status LEDsPWR (power supply), RUN (running), ERR (error), SYS (configuration)
 Dimensions (H x W x D)100 mm x 22.5 mm x 105 mm
 Power Supply18 VDC ... 32 VDC, SELV/PELV supply mandatory
Typically 200 mA, maximum 1 A at switch-on
 Operating Temperature, Horizontal DIN Rail Installation-40 °C .. 50 °C (0 mm minimum distance) 
-40 °C .. 55 °C (22.5 mm minimum distance)
 Operating Temperature, Vertical DIN Rail Installation-40 °C .. 35 °C (0 mm minimum distance)
-40 °C .. 40 °C (22.5 mm minimum distance)
 Storage Temperature-40 °C .. 85 °C
 Relative Humidity10 % ... 90 %, non-condensing
 WeightAbout 0.2 kg
 MountingDIN Rail (35 mm)
 HousingPhoenix Contact ME MAX
 Protection ClassIP20
SoftwareIT Network / Cloud ConnectivityOPC UA (Server, 60,000 items in total), MQTT (Publisher, up to 1,000 topics)
 Controller ConnectivityRFC1006, Modbus TCP
 Maximum Number of Controllers5
 Supported IoT HubsMicrosoft Azure Connected Factory, Microsoft Azure IoT Hub,
IBM Watson IoT Hub, General Electric Predix, Amazon AWS, etc.
 Supported ControllersSiemens S7-300, S7-400, S7-1200, S7-1500
Modbus TCP-compatible controllers (Schneider Electric, Wago, Beckhoff, Phoenix Contact, etc.)
 Supported Engineering ToolsSIMATIC STEP 7, TIA-Portal V13/V14/V15 including Service Packs

EmissionEC Directive 2004/108/EC “Electromagnetic Compatibility”, EN 55011, Group 1, Class A
EC Directive 2004/108/EC “Electromagnetic Compatibility”, EN 55022, Class A
EC Directive 2004/108/EC “Electromagnetic Compatibility”, EN 61000, Part 6-4
FCC CFR45, Part 15 Section 15.107 and 15.109 (Class A),
VCCI Class A Information Technology Equipment 2002
 ImmunityEC Directive 2004/108/EC “Electromagnetic Compatibility”, EN 61000, Part 6-2
CertificationsCE, FCC, RoHS 
Open Source License Declarationhttp://opensource.softing.com/IA/dataFEEDUAGateway/V1/


Order Numbers



Scope of Delivery

SoftwareTool for configuration over integrated web interface,
dataFEED Exporter for easy symbol import from Siemens Project Files
DocumentationQuick Startup Guide (printed documentation)