This series of products allows you to integrate some EnOcean devices into an PROFINET network.
HD67C77 is an EnOcean / PROFINET Slave Converter so you can connect an EnOCean network with a PROFINET Master in order to exchange informations between the PROFINET Master (for example a SIEMENS PLC, etc..) and the EnOcean network.
For informations about EnOcean / PROFIBUS converters switch here: