Siemens SINUMERIK 840D SL Operating Manual page 399

Parameters, G code program (undercut, form E)
PL Machining plane
SC Safety clearance
F Feedrate
Parameter
Position
X0
Z0
X1
UX
* Unit of feedrate as programmed before the cycle call
Parameters, G code program (undercut, form F)
PL Machining plane
SC Safety clearance
F Feedrate
Milling
Operating Manual, 02/2012, 6FC5398-7CP40-3BA0
mm
*
Description
Form E machining position:
Undercut size according to DIN table:
E.g.: E1.0 x 0.4 (undercut form E)
Reference point X ∅
Reference point Z
Allowance in X ∅ (abs) or allowance in X (inc)
Cross feed ∅ (abs) or cross feed (inc)
mm
*
Programming technological functions (cycles)
8.4 Turning - only for G code programs
Unit
mm
mm
mm
mm
399