HEIDENHAIN PWM 20 - Manual (Page 170)

November 2014 Checking incremental encoders 173
Example of the zoom function:
The diagrams 2 and 3 contain areas marked blue. These areas can be shifted and scaled up/down
to find an interesting area of the signal periods.
The blue areas may also be in a zoomed range.
Reset
Press this button to reset the zoom in all diagrams. The blue areas are shifted to
the left edges of the diagram windows.