File and Program Management
3.5 REDEF Changing the attributes of the NC language elements
Job planning
3-22 Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
Example: modal speed limitation in the parts program (setting data)
/_N_DEF_DIR/_N_SGUD_DEF
REDEF $SA_SPIND_MAX_VELO_LIMS PRLOC ;Setting data for limit speed
M17
/_N_MPF_DIR/_N_MY_MPF
N10 SETMS (3)
N20 G96 S100 LIMS=2500
...
M30
Let the limit speed defined in setting data ($SA_SPIND_MAX_VELO_LIMS) speed limitation
be 1200 rpm. Because a higher speed can be permitted in a set-up and completely tested
parts program, LIMS=2500 is programmed here. After the end of the program, the value
configured in the setting data takes effect here again.
Reset settings to default values and delete initializations again
New
definition
Attribute Reset default value initializations
REDEF NC language element APX = 7
REDEF Machine data/setting data Reset APW = 7 APR = 7 PRLOC
REDEF Synchronization variable Reset APW = 7 INIRE, INIPO, INICF
REDEF GUD, LUD Reset INIRE, INIPO, INICF
Example
REDEF MASLON APX 2
REDEF SYG RS INIRE APW3
REDEF R[ ] INIRE
REDEF MASLON ;Set APX to 7
REDEF SYG RS ;Set APW to 7 and INIRE deleted
REDEF R[ ] ;INIRE deleted
Restrictions
• The change to the attributes of NC objects can only be made after definition of the object.
In particular, it is necessary to pay attention to the DEF.../ REDEF sequence for GUD.
(Setting data/system variables are implicitly created before the definition files are
processed). The symbol must always be defined first (implicitly by the system or by the
DEF statement) and only then can the REDEF be changed.
• If two or more concurrent attribute changes are programmed, the last change is always
active.
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