openSAFETY’s Black Channel functionality enables a simple implementation on top of EtherNet/IP. With EtherNet/IP, openSAFETY makes use of the option to establish connections via its own assemblies. Safe communication then proceeds via these assemblies. In this solution, safety devices operate as a Producer and a Consumer at the same time, and are therefore capable of listening to safe data on the network.
All details are documented in the openSAFETY over EtherNet/IP specification.