Siemens SINUMERIK 840D sl Function Manual page 1023

Example
FCTDEF(1, -100, 100, -$AA_IW[X], 1)
PUTFTOCF (1, $AA_IW[X], 1, 2, 1)
Length 1 of tool for spindle 1 in channel 2 is modified as a function of X axis movement.
Note
The online tool offset for a (geometric) grinding tool that is not active can be activated by
specifying the appropriate spindle number.
If the channel number is omitted, the online offset is effective in the same channel.
If the spindle number is omitted, the online offset is applied to the current tool.
An online tool offset can also be called as a synchronized action.
References:
/FBSY/ Function Manual, Synchronized Actions
18.3.3 Activate/deactivate online tool offset
Activation/deactivation of online tool offset
The following commands activate and deactivate the online tool offset in the machining
channel (grinding, destination channel):
FTOCON
FTOCOF
Online offsets are traversed in the basic coordinate system, i.e. even when the workpiece
coordinate system has been rotated, the length compensations always act in parallel to the
coordinates of the unrotated system.
The offset is applied regardless of whether or not the axis to be compensated is traversed in
the current block.
Extended Functions
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Activation of online tool offset
The machining channel can process online tool offsets (PUTFTOC) only if the
offset is active (FTOCON). Alarm 20204 "PUTFTOC command not allowed" is
otherwise output.
Deactivation of online tool offset
FTOCOF deactivates the online tool offset. The written values remain stored in
the appropriate length compensation data.
Grinding-Specific Tool Offset and Tool Monitoring (W4)
; Function definition
; Write online tool offset
continuously
Online tool offset
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