Siemens SINUMERIK 840D sl Programming Manual page 402

Tool offsets
9.4 Online tool offset (PUTFTOCF, FCTDEF, PUTFTOC, FTOCON, FTOCOF)
Example
Surface grinding machine with:
● Y: Infeed axis for grinding wheel
● V: Infeed axis for dressing roller
● Machining channel: Channel 1 with axes X, Z, Y
● Dressing channel: Channel 2 with axis V
After the start of grinding motion, the grinding wheel is to be dressed by an amount of 0.05 at
X100. The dressing amount is to be applied to the grinding tool with "Write online offset
continuously".
Machining program in channel 1:
Program code
...
N110 G1 G18 F10 G90
N120 T1 D1
N130 S100 M3 X100
N140 INIT(2,"DRESS","S")
N150 START(2)
N160 X200
N170 FTOCON
N... G1 X100
N... M30
402
Comment
; Basic position.
; Select current tool.
; Spindle on, traverse to starting position.
; Select the dressing program in channel 2.
; Start the dressing program in channel 2.
; Traverse to the target point.
; Activate online offset.
; Additional machining.
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
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