Siemens SINUMERIK 840D sl Programming Manual page 444

Transformations
6.12 Chained transformations (TRACON, TRAFOOF)
Syntax
TRACON(trf,par)
TRAFOOF
Significance
TRACON
TRAFOOF
trf
par
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This activates a chained transformation.
This activates the chained transformation. If another transformation was
previously activated, it is implicitly disabled by means of TRACON().
The most recently activated (chained) transformation will be disabled.
Number of the chained transformation:
0 or 1 for first/single chained transformation.
If nothing is programmed here, then this has the same meaning as
specifying value 0 or 1, i.e., the first/single transformation is activated.
2 for the second chained transformation. (Values not equal to 0 - 2
generate an error alarm).
One or more parameters separated by a comma for the transformations in
the chain expecting parameters, for example, the angle of the inclined axis.
If parameters are not set, the defaults or the parameters last used take
effect. Commas must be used to ensure that the specified parameters are
evaluated in the sequence in which they are expected, if default settings
are to be effective for previous parameters. In particular, a comma is
required before at least one parameter, even though it is not necessary to
specify trf. For example: TRACON( , 3.7).
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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