Control Response To Power On, Mode Change, Reset, Block Search, Repos - Siemens SINUMERIK 840D sl Function Manual

M1: Kinematic transformation
7.8 Activating transformation machine data via part program/softkey
Changing the assignment
The assignment of a transformation data set to a transformation is determined by the sequence
of entries in MD24100 $MC_TRAFO_TYPE_X. The first entry in the table is assigned to the
first transformation data set, and accordingly the second entry to the second data set. This
assignment may (and can) not be altered for an active transformation.
Example:
Three transformations are set, two orientation transformations and one Transmit
transformation, e.g.
MD24100 $MC_TRAFO_TYPE_1 = 16
; orientation transformation, 1st orientation trafo data set
MD24200 $MC_TRAFO_TYPE_2 = 256 : Transmit transformations
MD24300 $MC_TRAFO_TYPE_3 = 18
; orientation transformation, 2nd orientation trafo data set
The first data set for orientation transformations is assigned to the first transformation (equaling
the first orientation transformation) and the second transformation data set to the third
transformation (equaling the second orientation transformation).
If the third transformation is active when the NEWCONFIG command is executed, it is not
permissible to change the first transformation into a transformation of another group (e.g.
TRACYL) since, in this case, the third transformation would then not become the second
orientation transformation, but the first.
In the above example, however, it is permissible to set another orientation transformation for
the first transformation (e.g. using MD24100 $MC_TRAFO_TYPE_1 = 32) or a transformation
from another group as the first transformation (e.g. using $MD24100 $MC_TRAFO_TYPE_1
= 1024, TRAANG), if the second transformation is changed into an orientation transformation
at the same time, e.g. with MD24200 $MC_TRAFO_TYPE_2 = 48.
7.8.3

Control response to power ON, mode change, RESET, block search, REPOS

With the aid of the following machine data it is possible to select a transformation automatically
in response to RESET (i.e. at end of program as well) and/or on program start:
MD20110 $MC_RESET_MODE_MASK
MD20112 $MC_START_MODE_MASK
and
MD20140 $MC_TRAFO_RESET_VALUE
This may result in the generation of an alarm, for example, at the end or start of a program, if
the machine data of an active transformation has been altered.
To avoid this problem when re-configuring transformations via an NC program, we therefore
recommend that NC programs are structured as follows:
Program code
N10 TRAFOOF()
486
Comment
; Select a possibly still active trans-
formation
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions