Siemens SINUMERIK 840D sl Function Manual page 1025

Task
After the grinding operation has started at Y100, the grinding wheel must be dressed by 0.05
(in V direction). The dressing amount must be compensated continuously by means of an
online offset.
Main machining program in channel 1
...
G1 G19 F10 G90
T1 D1
S100 M3 Y100
FTOCON
INIT (2, "/_N_MPF_DIR/_N_ABRICHT_MPF", "S")
START (2)
Y200
...
M30
Dressing program in channel 2_N_ABRICHT_MPF
...
FCTDEF (1, -1000, 1000, -$AA_IW[V], 1)
PUTFTOCF (1, $AA_IW[V], 2, 1)
U-0.05 G1 F0.01 G91
...
M30
Note
Axis V operates (dresses) in parallel to Y, i.e. length 2 acts in Y and must therefore be
compensated.
Extended Functions
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Grinding-Specific Tool Offset and Tool Monitoring (W4)
; Basic position
; Select current tool
; Spindle ON, traverse to
starting position
; Activate online offset
; Select program in channel 2
; Start program in channel 2
; Travel to target position
; Function definition
; Write online tool offset
; continuously
; Infeed movement to dress wheel
Online tool offset
1025