sercos Specification Update Version 1.3

The sercos international technical working groups have come up with a specification update (version 1.3) that includes many profile and protocol expansions for the third generation of sercos. All of the expansions are completely compatible with the existing specification. Profiles for drives and decentral I/Os have been extended by new functions and classifications. Two new function profi les have been included: the energy profile and an encoder profile for absolute value and incremental encoders. Supplementary services have also been specified for the protocol level: a process for oversampling defines a method for recording and outputting equidistant process values faster than the configured bus and connection cycle. A time stamp process is used for event-controlled recording of actual values with the associated time stamps as well as time stamp-dependent output of specified values. The specification update is rounded off by installation guidelines that specify cabling with copper cables and fiber optic cables both with protection category IP20 and IP65/67.