The SERCOS organizations want to make it easy for you to get the documentation, product overviews, application notes and general SERCOS interface information you need. Several brochures, manuals and presentations are currently available for free download as Adobe Acrobat* (.pdf) files; others are available for sale. The official IEC standard for SERCOS I/II and the publicly available specification for SERCOS III are only available from IEC and its partners. However, note that international standards organizations by their nature take quite a bit of time to approve and update standards. The specifications on which the standards are based are listed herein, and may be more up to date that the official IEC standards. Note that certain documentation, such as pre-released documents, are a benefit available to members of the SERCOS organizations only and are listed in the Member’s Only section.