Siemens SINUMERIK 840D sl Programming Manual page 166

Special Motion Commands
5.1 Approaching coded positions (CAC, CIC, CDC, CACP, CACN)
Example: positioning table for linear axis and rotary axis
Note
If an axis is situated between two positions, it does not traverse in response to an
incremental position command with CIC (...). It is always advisable to program the first travel
command with an absolute position value.
Example 2
N10 FA[B]= 300
N20 POS[B]=
N30 POS[B]=
5-2
;Feed for positioning axis B
CAC (10) ;Approach coded position 10 (absolutely)
CIC (-4) ;Travel 4 spaces back from the current position
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
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