Online Tool Length Compensation ($Aa_Toff) - Siemens Sinumerik 840D sl Programming Manual

10.4.10

Online tool length compensation ($AA_TOFF)

Function
Use the system variable $AA_TOFF[ ] to overlay the effective tool lengths in accordance with
the three tool directions three-dimensionally in real time.
The three geometry axis identifiers are used as the index. This defines the number of active
directions of compensation by the geometry axes active at the same time.
All compensations can be active at the same time.
Syntax
N... TRAORI
N... TOFFON(X,<offset value>)
N... WHEN TRUE DO $AA_TOFF[X]
N... TOFFON(Y,<offset value>)
N... WHEN TRUE DO $AA_TOFF[Y]
N... TOFFON(Z,<offset value>)
N... WHEN TRUE DO $AA_TOFF[Z]
Meaning
TOFFON:
TOFFOF:
$AA_TOFF[X]=<value>:
$AA_TOFF[Y]=<value>:
$AA_TOFF[Z]=<value>:
Job planning
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
Activate online tool length compensation
Tool direction, in which the online tool
X, Y, Z:
length compensation should be active.
When activating, an offset value can be
<offset
specified for the relevant direction of
value>:
compensation and this is immediately
recovered.
Reset online tool length compensation
The compensation values in the specified compensation
direction are reset and a pre-processing stop is initiated.
Overlay in the X direction
Overlay in the Y direction
Overlay in the Z direction
Motion synchronous actions
10.4 Actions in synchronized actions
603