Siemens sinumerik 840d Programming Manual page 256

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Transformations

7.7 Chained transformations

The chained transformation is activated. Any other

previously activated transformation is implicitly

deactivated with TRACON().

A tool is always assigned to the first transformation

of a chain. The following transformation then

behaves as if the active tool length were zero. Only

the base lengths of a tool (_BASE_TOOL_) set in

the machine data are valid for the first

transformation of the chain.

Deactivation

The command deactivates the (chained)

transformation that was last activated.

SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) − 04.00 Edition

One or several parameters separated by

commas for the transformation in the

chain, the parameters require input of, for

example, the angle of the inclined axis.

If the parameters are not set, the default

settings or the parameters that were last

used are effective. Commas must be

inserted to ensure that the specified

parameters are evaluated in the

sequence in which they are required if

default settings are to be effective for

preceding parameters. In particular,

when specifying at least one parameter, it

must be preceded by a comma, even if it

is not necessary to specify trf, for

example TRACON( , 3.7).

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