HEIDENHAIN PWM 20 - Manual (Page 229)

230 HEIDENHAIN ATS Software User's Manual
EnDat 2.2
transmission of
position values EnDat 2.2 can transmit position values with or without additional information.
Additional information
With EnDat 2.2, one or two pieces of additional information can be appended to the position
value. Each additional information is 30 bits long with LOW as first bit, and ends with a CRC
check. The additional information supported by the respective encoder is saved in the encoder
parameters. The content of the additional information is determined by the MRS code and is
transmitted in the next sampling cycle for additional information. This information is then
transmitted with every sample until a selection of a new memory area changes the content.