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. Thus, the number of active
directions of offset is determined by the geometry axes that are active at the same time.
All offsets can be active at the same time.
Syntax
N.. TRAORI
N.. TOFFON(X, 25)
N.. WHEN TRUE DO $AA_TOFF[X]
N.. TOFFON(Y, 25)
N.. WHEN TRUE DO $AA_TOFF[Y]
N.. TOFFON(Z, 25)
N.. WHEN TRUE DO $AA_TOFF[Z]
Significance
TOFFON
TOFFOF
X, Y, Z
$AA_TOFF[X]=value
$AA_TOFF[Y]=value
$AA_TOFF[Z]=value
Job Planning
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
Tool Offset ON (activate online tool length offset)
On activation, an offset value can be specified for the
relevant direction of offset and this is immediately recovered.
Tool Offset OF (reset online tool length offset)
The relevant offset values are reset and a preprocessing stop
is initiated.
Direction of compensation for the offset value indicated for
TOFFON
Superimposition in X direction
Superimposition in Y direction
Superimposition in Z direction
Motion synchronous actions
10.4 Actions in synchronized actions
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