HEIDENHAIN TNC 306 Technical Manual - Manual (Page 134)

4-34
TNC 406/TNC 306 2 Reference marks 3/97
MP1350 Type of reference mark approach
Entry: 0 = encoder with distance-coded reference marks
1 = encoder with one reference mark
MP1350.0 X axis
MP1550.1 Y axis
MP1350.2 Z axis
MP1350.3 Axis 4
MP1350.4* Axis 5
Set Reset
M2556 Reference end position for X axis PLC PLC
M2557 Reference end position for Y axis
M2558 Reference end position for Z axis
M2559 Reference end position for axis 4
M2560 Reference end position for axis 5
W272 Operating mode NC
0 = Edit
1 = Manual operation
2 = Handwheel
3 = Positioning with manual entry
4 = Program run/single block
5 = Program run/full sequence
6 = Program test
7 = Pass over reference points
2.2 Machine datum
The reference mark defines a point on the encoder. The reference points of all axes define the scale
datum. MP960.x contains the distance from the scale datum to the machine datum. All REF-based
displays and positioning movements refer to the machine datum (see also Section "Display and
operation").
* only TNC 406