HEIDENHAIN PWM 20 - Manual (Page 121)

122 HEIDENHAIN ATS Software User's Manual
Comparison of absolute and incremental values
Unlike with EnDat, speed ranges or permissible tolerances are not displayed, since these are not
available.
The deviation span is displayed in red color, if the difference of absolute and incremental position
exceeds the number of absolute measuring steps per revolution. (Example: For a 13-bit encoder
the display color changes to red as of 8192 LSB.)
The deviation span can be reset to zero.
If the counting direction of a programmable SSI encoder was changed, it can be
adjusted here.