HEIDENHAIN PWM 20 - Manual (Page 204)

November 2014 Checking incremental encoders 207
6.3.8 Counter function
The "Counter" function serves to check the counting of encoders.
Signal periods are counted and displayed. The function starts immediately after you select
"Counter".
The Counter characteristics field contains:
 Position = Display value in signal periods
 Reference =Determined distance between two reference marks
 Direction = Display of traverse direction or direction of rotation (in tabular view:
positive and negative , the current position is marked by an asterisk
*.)
 Trigger =When the reference mark is traversed, the LED color changes to "Green“ (pulse).
Note
The "Position" column contains the signal periods.
Freeze the counter screen
Reset Counter and Position to zero
Every reference mark clears Counter and Position
Clear Counter and Position and restart with the next reference mark
Change of counting directions for Counter and Position
Clear the table and the graphics
Return to basic menu (Connect/disconnect encoder)