Siemens SINUMERIK 840D sl Function Manual page 734

R2: Rotary axes
13.2 Modulo 360 degrees
Figure 13-2
Parameter assignment
Modulo rotary axis
The parameter assignment of a rotary axis as modulo rotary axis is performed via axis-specific
machine data:
MD30310 $MA_ROT_IS_MODULO = 1
Note
It is recommended that the parameters of the modulo position display also be set to 360°.
Modulo rotary axis: Position display modulo 360°
The parameterization of the position display of a rotary axis on the user interface in modulo
360° representation is via the axis-specific machine data:
MD30320 $MA_DISPLAY_IS_MODULO) = 1
Modulo rotary axis: Starting position
A starting position for the modulo range different from 0 can be specified with the following
axis-specific machine data for a modulo rotary axis:
MD30340 $MA_MODULO_RANGE_START = <Starting position>
734
Modulo 360° map
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions