ifm electronic is launching safety light curtains that require cabling on one side only, which greatly simplifies installation. The system consists of a transmitter/receiver unit on one side and a passive reflector on the other. So far three versions have been announced by ifm for protecting areas 0-6m wide with two, three or four light beams.
These units are designed to the following standards: Type 4 (IEC 61496-1), SIL 3 (IEC 61508), SILcl 3 (IEC 62061), PL e (EN ISO 13849-1).
Follow the link for more information about these new safety light curtains from ifm electronic.