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.

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
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
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
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
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
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
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
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
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
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:

    1. Activate Edit
    2. Select the value
    3. Edit the value
    4. Save the edited value, for example by selecting a different row
     
    Notice
    Danger of collision!
    The control does not consider the changes made to a datum table or compensation table until the values have been saved. You need to activate the datum or compensation value in the NC program again; otherwise, the control will continue using the previous values.
    1. Make sure to confirm any changes made to the table immediately (e.g., by pressing the ENT key)
    2. Activate the datum or compensation value in the NC program again
    3. Carefully prove-out the NC program after changing the table values