Siemens SINUMERIK 802D sl Function Manual page 358

Spindle (S1)
20.5 Programming
S...
SPOS=...
SPOS=DC(Pos)
SPOS=ACN(Pos)
SPOS=ACP(Pos)
SPOS=IC(Pos)
M40
M41 to M45
SPCON
SPCOF
M70
G25 S...
G26 S...
LIMS=...
Reference:
/BP_/ Operation and Programming
358
Spindle speed in rpm, e.g. S300
Spindle positioning, e.g. SPOS=270 -> at position 270 degrees.
The block change is only performed when the spindle is in position.
The direction of motion is retained for positioning while in motion and the
position approached. When positioning from standstill, the position is
approached via the shortest path.
The position is always approached with negative direction of motion. If
necessary, the direction of motion is inverted prior to positioning.
The position is always approached with positive direction of motion. If
necessary, the direction of motion is inverted prior to positioning.
The traversing path is specified. The direction of traversing is obtained
from the sign in front of the traversing path. If the spindle is in motion,
the direction of traversing is inverted if necessary to allow traversing in
the programmed direction.
Automatic gear stage selection for the spindle
Select gear stage 1 to 5 for the spindle
Position control on
Position control off
Position control on
Programmable lower spindle speed limit, e.g. G25 S8
Programmable upper spindle speed limit, e.g. G26 S1200
Programmable maximum spindle speed for G96
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0