558  MOD Functions
17.10 Position Display Types
17.10 Position Display Types
Application
In the Manual Operation mode and in the Program Run modes of 
operation, you can select the type of coordinates to be displayed.
The figure at right shows the different tool positions:
 Starting position
 Target position of the tool
 Workpiece datum
 Machine datum
The TNC position displays can show the following coordinates:
With the MOD function Position display 1, you can select the position 
display in the status display.
With Position display 2, you can select the position display in the 
additional status display.
Function Display
Actual position; current tool position ACTL.
Reference position; the actual position relative to 
the machine datum
REF
Servo lag; difference between nominal and actual 
positions (following error)
LAG
Nominal position: the value presently 
commanded by the TNC
NOML
Distance remaining to the programmed position 
in the machine coordinate system; difference 
between actual and target positions
DIST.
Distance remaining to the programmed position 
in the active (tilted, where appropriate) 
coordinate system; difference between actual 
and target positions
DG 3D
Traverses that were carried out with handwheel 
superimpositioning (M118)
(only Position display 2)
M118