Siemens SINUMERIK 840D sl Programming Manual page 135

Example 3: Activating an axis exchange without a preprocessing stop
Requirement: Axis replacement without a preprocessing stop must be configured via
machine data.
Programming
N010 M4 S100
N011 G4 F2
N020 M5
N021 SPOS=0
N022 POS[B]=1
N023 WAITP(B)
N030 X1 F10
N031 X100 F500
N032 X200
N040 M3 S500
N041 G4 F2
N050 M5
N099 M30
If the spindle or axis B is traversed, e.g. to 180 degrees and then back to 1 degree
immediately after block N023 as the PLC axis, this axis will revert to its neutral status and
will not trigger a preprocessing stop in block
Requirement
Requirements for axis replacement
● The axis must be defined in all channels that use the axis in the machine data.
● It is necessary to define to which channel the axis will be assigned after POWER ON in
Description
Release axis: RELEASE
When enabling the axis please note:
1. The axis must not be involved in a transformation.
2. All the axes involved in an axis link (tangential control) must be enabled.
3. A concurrent positioning axis cannot be replaced in this situation.
4. All the following axes of a gantry master axis are transferred with the master.
5. With coupled axes (coupled motion, master value coupling, electronic gear) only the
Job Planning
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
1.15 Axis replacement, spindle replacement (RELEASE, GET, GETD)
the axis-specific machine data.
leading axis of the group can be enabled.
Comment
; Axis B becomes the neutral axis.
; Axis does not trigger a preprocessing stop / REORG
.
N40
Flexible NC programming
135