Siemens SINUMERIK 840D sl Programming Manual page 372

Transformations
6.12 Chained transformations (TRACON, TRAFOOF)
Machine manufacturer
Take note of information provided by the machine manufacturer on any transformations
predefined by the machine data.
Transformations and chained transformations are options. The current catalog always
provides information about the availability of specific transformations in the chain in specific
controls.
Applications
● Grinding contours that are programmed as a side line of a cylinder (TRACYL) using an
● Finish cutting of a contour that is not round and was generated with TRANSMIT using
Syntax
TRACON(trf,par)
TRAFOOF
Meaning
TRACON
TRAFOOF
trf
par
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inclined grinding wheel, e.g., tool grinding.
inclined grinding wheel.
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).
This activates a chained transformation.
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
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