Activating Transformation Machine Data Via Parts Program/Softkey; Functionality; Constraints - Siemens SINUMERIK 840D sl Function Manual

Kinematic Transformation (M1)

7.8 Activating transformation machine data via parts program/softkey

7.8 Activating transformation machine data via parts program/softkey
7.8.1

Functionality

Transformation MD can now be activated by means of a program command softkey, i.e.
these can, for example, be written from the parts program, thus altering the transformation
configuration completely.
Up to ten different transformations can be set in the control system. The transformation type
is set in the following machine data:
MD24100 $MC_TRAFO_TYPE_1
up to
MD24460 $MC_TRAFO_TYPE_10.
Characteristics
Transformation machine data are NEWCONFIG effective.
The protection level is now 7/7 (KEYSWITCH_0), which means that data can be modified
from the NC program without any particular authorization.
Provided that no transformation is selected (activated) when a NEWCONF command is issued
(regardless whether via the NEWCONF NC program command, the HMI or implicitly
following Reset or end of program), the machine data listed above can be altered without
restriction and then activated.
Of particular relevance is that new transformations can be configured or existing
transformations replaced by one of a different type or deleted, since the modification options
are not restricted to re-parameterization of existing transformations.
7.8.2

Constraints

Change machine data
The machine data which affect an active transformation may not be altered; any attempt to
do so will generate an alarm.
These are generally all machine data assigned to a transformation via the associated
transformation data group. Machine data that are included in the group of an active
transformation, but not in use, can be altered (although this would hardly be meaningful). For
example, it would be possible to change machine data MD24564
$MC_TRAFO5_NUTATOR_AX_ANGLE_n for an active transformation with MD24100
$MC_$MC_TRAFO_TYPE = 16 (5-axis transformation with rotatable tool and two mutually
perpendicular rotary axes A and B) since this particular machine data is not involved in the
transformation.
Please note that machine data MD21110 $MC_X_AXIS_IN_OLD_X_Z_PLANE may not be
altered for an active orientation transformation.
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Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Extended Functions