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Safe Link from Bihl+Wiedemann

Safe Link is a technology in the Gateways with integrated Safety Monitors and the Safety Basic Monitors with Ethernet interface. It allows safety controllers to be connected to each other simply, efficiently and with the greatest possible flexibility. Learn more about it in the following articles.

The video shows the technical properties of Safe Link and the benefits compared with conventional coupling and coupling with other safe Ethernet systems.

Video length: 1:41

Jochen Bihl talks about Safe Link, a safety technology solution by Bihl+Wiedemann. With Safe Link you can link different parts of the system together in a simple and flexible way – even when different controllers are used.

Video length: 2:16

Comparison of Safe Link and conventional coupling

Comparison of Safe Link and other safe Ethernet systems

Safety over Ethernet

Why safe coupling?


Many safe signals

  • Up to 62 safe signals per safety monitor
  • The more safe signals, the more safety monitors are needed
  • Safety monitors are coupled to each other

Safe couple multiple machines

  • Central E-Shop works on multiple machines
  • E-Stop on one machine works for the neighboring machine

Widely distributed systems

  • Encapsulating of system parts, segmenting
  • Modular system construction
  • Individual modules are coupled to each other

Safe communication via...

  • For traditional fieldbus systems
  • Information exchange via Ethernet diagnostics interface

  • Safe communication over optical data transmission (additionally required)
  • Safe communication over WLAN networks (addional access points required)
  • For example driverless transport systems, storage and retrieval systems and other mobile applications

  • For industrial Ethernet derivates
  • Couple monitors over the fieldbus interface of the gateways
  • Communication over the already present Ethernet rail
  • Controller-neutral

Safe coupling for any system size

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