Datum table *.d
Application
A datum table saves positions on the workpiece. To use a datum table, you must activate it. The datums can be called from within an NC program, for example in order to execute machining processes on several workpieces at the same position. The active row of the datum table serves as the workpiece datum in the NC program.
Related topics
- Contents and creation of a datum table
- Editing a datum table during a program run
- Preset table
Description of function
The values of columns X, Y and Z have the effect of a shift in the workpiece coordinate system W-CS. The values of columns A, B, C, U, V and W have the effect of offsets in the machine coordinate system M-CS.
Comparison of offset and 3D basic rotation
Parameters in datum tables
A datum table provides the following parameters:
Parameter | Meaning |
---|---|
D | Row number in the datum table Input: 0...99999999 |
X | X coordinate of the datum Transformation relating to the workpiece coordinate system W-CS Input: -99999.99999...+99999.99999 |
Y | Y coordinate of the datum Transformation relating to the workpiece coordinate system W-CS Input: -99999.99999...+99999.99999 |
Z | Z coordinate of the datum Transformation relating to the workpiece coordinate system W-CS Input: -99999.99999...+99999.99999 |
A | Axis angle of the A axis for the datum Offset relating to the machine coordinate system M-CS Input: -360.0000000...+360.0000000 |
B | Axis angle of the B axis for the datum Offset relating to the machine coordinate system M-CS Input: -360.0000000...+360.0000000 |
C | Axis angle of the C axis for the datum Offset relating to the machine coordinate system M-CS Input: -360.0000000...+360.0000000 |
U | Position of the U axis for the datum Offset relating to the machine coordinate system M-CS Input: -99999.99999...+99999.99999 |
V | Position of the V axis for the datum Offset relating to the machine coordinate system M-CS Input: -99999.99999...+99999.99999 |
W | Position of the W axis for the datum Offset relating to the machine coordinate system M-CS Input: -99999.99999...+99999.99999 |
DOC | Comment on shift? Entry: Text width 16 |
Editing a datum table
You can edit the active datum table during program run.
Compensation during program run
To edit a datum table: | ||
|
- Make sure to confirm any changes made to the table immediately (e.g., by pressing the ENT key)
- Activate the datum or compensation value in the NC program again
- Carefully prove-out the NC program after changing the table values