Free Assignment Of D Numbers: Invalidate D Numbers (Dzero); Toolholder Kinematics - Siemens SINUMERIK 840D sl Programming Manual

Syntax
<Status>=GETACTTD(<TNo>,<DNo>)
Meaning
GETACTTD():
<DNo>:
<TNo>:
<status>:
3.13.7.5

Free assignment of D numbers: Invalidate D numbers (DZERO)

The DZERO command is used for support during retooling. Compensation data sets tagged with
this command are no longer verified by the CHKDNO command. These data sets can be
accessed again by setting the D number once more with SETDNO.
Syntax
DZERO
Meaning
DZERO:
3.13.8

Toolholder kinematics

Requirements
A toolholder can only orientate a tool in all possible directions in space if
● Two rotary axes V
● The rotary axes are mutually orthogonal.
● The tool longitudinal axis is perpendicular to the second rotary axis V
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
Function call
D number for which the T number shall be searched.
Data type: INT
T number found
Data type: VAR INT
Result
Data type: INT
Value: 0
-1
-2
-5
Marks all D numbers of the TO unit as invalid.
and V are present.
1 2
The T number was found. <Tno> contains the value of the T
number.
No T number exists for the specified D number; <Tno>=0.
The D number is not absolute. <TNo> receives the value of
the first tool found that contains the D number with the value
<Dno>.
The function was not able to be executed for another reason.
Work preparation
3.13 Tool offsets
.
2
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