Siemens sinumerik 840D sl Operating Manual page 253

Parameters, G code program
PL Machining plane
RP Retraction plane
SC Safety clearance
Parameters Description
Single position
Machining 
position (only
Drill hole at programmed position
for G code)
Position pattern

Position with MCALL
Z0 (only for G Reference point Z
code)
Face C
Machining 
surface
Face Y

(only for
Peripheral surface C

ShopTurn)
Peripheral surface Y

Please note that when machining in the face C and peripheral surface C planes,
clamping only remains active for the drilling operation. On the other hand, when
machining in the face Y and peripheral surface Y planes, clamping is modal, i.e. it
remains active until the machining plane is changed.
Diameter (centered with reference to the diameter)
Centering 
The angle for the center drill entered in the tool list is applied.
Tip (centered with reference to the depth)

The drill is inserted into the workpiece until the programmed insertion depth is reached.
∅ It is inserted into the workpiece until the diameter is correct. - (for diameter centering
only)
Z1 Drilling depth (abs) or drilling depth in relation to Z0 (inc)
It is inserted into the workpiece until it reaches Z1 - (for tip centering only)
(only for G code)
Z1 (face) or Drilling depth (abs) or drilling depth in relation to Z0 of X0 (inc)
X1 (peripheral
The tool is inserted until Z1 or X1 is reached. - (for tip centering only)
surface)
(only for
ShopTurn)
Dwell time (at final drilling depth) in seconds
DT 
Dwell time (at final drilling depth) in revolutions

Turning
Operating Manual, 07/2010, 6FC5398-8CP40-0BA0
parameters, ShopTurn program
T
mm D
mm F
S / V
Programming technology functions (cycles)
Tool name
Cutting edge number
Feedrate
Spindle speed or constant
cutting rate
8.1 Drilling
mm/min
mm/rev
rpm
m/min
Unit
mm
mm
mm
mm
mm
s
rev
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