Festo Контроллер крайних положений SPC11 - Manual (Page 45)

A. Technical appendix
A-3
Festo P.BE-SPC11-DNCM-EN en 0204NH
A.1 Repetition accuracy
The repetition accuracy when appproaching the mid-positions
is ± 0.25 % of the rated length of the measuring system, but
not more accurate than ± 2 mm.
Please note
Observe the instructions on repetition accuracy in the
system manual in order to achieve good positioning
behaviour and the repetition accuracy specified.