Sensor Integration Gateway

The universal IO-Link master with IIoT competence

Your Benefits

  • Enables loss-free communication between a large number of sensors or actuators and the higher-level plant controller
  • Simple and transparent data integration thanks to uniform wiring concept with IO-Link
  • Innovative IO-Link ports that can be freely configured as Class A or Class B ports.
  • Quick and innovative commissioning and parameterization via integrated web server
  • INDUSTRIE 4.0 READY thanks to IIoT connection via REST API, MQTT and OPC UA


The universal IO-Link master with IIoT competence

The SIG350 Sensor Integration Gateway is an IO-Link master that bundles and controls sensor communication via 8 IO-Link ports. The SIG350 allows for seamless integration and loss-free data transmission from the sensor to the cloud – and with reduced cabling work. The ports can be loaded with a maximum of 4 A in order to be able to integrate actuators with higher power requirements. The PROFINET, EtherNet/IP and EtherCAT industrial protocols are available for network communication. Thanks to IO-Link even during operation, an integrated web server allows for intuitive configuration of the IO-Link master as well as the connected sensors. Data exchange with cloud solutions is possible via the REST API, MQTT and OPC UA IIoT interfaces.

At a glance
  • 8 IO-Link ports (M12; 5-pin; A-coded; Class A/B)
  • Current carrying capacity of up to 16 A at max. 4 A per port for US and UA
  • Rugged IP67 housing
  • Operating temperature –30 °C ... +70 °C
  • PROFINET, EtherNet/IP and EtherCAT available
  • REST API, MQTT and OPC UA IIoT protocols can be used
  • Rotary encoding switch for IP addressing


Innovative IO-Link ports for maximum efficiency and flexibility

The SIG350 Sensor Integration Gateway makes it easy to reduce installation effort, space and costs: The innovative IO-Link ports offer maximum flexibility in application, as they can be freely configured as Class A or Class B. One IO-Link device or one digital standard sensor can be connected to each of the 8 ports. When using the Class A configuration, an additional digital sensor can be connected to pin 2. When combined with upstream IO-Link hubs such as the SIG100, the number of digital signals that can be processed with just one master can be significantly increased. The Class B configuration can also be used to connect energy-intensive IO-Link devices with current requirements of up to 4 A. This makes it possible to control complex systems consisting of sensors and actuators. The advantage: There is no need to define the port type in advance. This increases flexibility and reduces inventory costs, as you do not have to stock different IO-Link masters.

Can be expanded flexibly: With 8 ports and the option of processing up to 104 signals, the SIG350 bundles sensor and actuator information in a highly efficient manner.

Maximum power: The compact M12 voltage supply is particularly powerful with 16 A each for US and UA. In addition, the voltage supply can be looped through across several masters (daisy chaining), thereby reducing the required number of cable paths.
Very powerful: Devices with increased power requirements, such as electric motors or valve terminals, can be connected via configured Class B ports up to a maximum current of 2 x 2 A.

More design freedom: Assigning pin 2 means that either an additional I/O can be provided at the port or a device with increased power requirements can be connected. This means that the SIG350 can be adapted to the application and its requirements with maximum flexibility.

Future-proof communication from the sensor to the cloud

The market share of Industrial Ethernet networks has doubled in the last five years, and the trend is growing. That is why the SIG350 is available with the three leading Industrial Ethernet protocols PROFINET, EtherNet/IP or EtherCAT. The protocols network industrial systems reliably and efficiently and ensure future-proof data exchange in real time. Combined with the available IIoT interfaces, the SIG350 is suitable for a wide range of automation tasks in the fully automated industrial environment of tomorrow. All in the spirit of Industry 4.0.

Integrated web server for optimal configuration: The integrated web server makes extensive information, diagnostics and configuration options available. The web server also provides all current live data (e.g. current, voltage and temperature values) as well as diagnostics.

The SIG350 is optimized for IIoT applications and features a variety of interfaces: REST API JSON and MQTT JSON according to the JSON integration for IO-Link of the IO-Link community as well as integrated OPC UA server according to the OPC UA for IO-Link Companion specification.

The SIG350 enables two parallel communication channels – communication to the control (via the fieldbus) and to cloud applications (via IIoT interfaces). That’s what we call “Dual Talk“.

Simple and seamless integration, both today and tomorrow: With the SIG350, feeding sensor data into modern industrial networks is simple. The data can also be transmitted to cloud applications at the same time. Thanks to Dual Talk, the right data can always be made available exactly where it is needed.


Technical overview

  • Technical data overview

    Technical data overview

    Supported products

    IO-Link Devices

    Binary switching sensors

    Binary actuators

    OPC UA
    Enclosure ratingIP67 In fastened condition
All technical data can be found accompanying the individual product