FlexiLink from SICK is a new functionality of FlexiSoft that allows linking up to four FlexiSoft safety controllers with one another in a flexible and functional way. Integration takes place via a safe device interface from called Enhanced Function Interface. It serves the connected or, respectively, networked devices to exchange their safety-relevant signals directly, without additional module. Within the integrated FlexiLink system, the stations can transmit up to 52 bit each. FlexiLink permits integration of FlexiSoft safety controllers into a network wherever plants are designed. Intralogistical facilities and packaging lines are two application examples.