July 2013 6.2 PLC axes 633
Module 9123 Traverse the reference marks of PLC axes
Traverse the reference marks as for NC axes. This module is not suitable for
encoders with distance-coded reference marks (use Module 9220).
You can use the same procedure to traverse a reference mark for PLC axes
as for NC axes. Use Module 9123 only if no conventional procedure is
possible.
Module 9123 moves the axis in the given direction until the reference mark
has been traversed. The axis stops next to the reference mark, offset by the
braking path.
Call:
Axis-specific: Dependence on MP4020 bit 14
PS B/W/D/K <Feed rate>
Input unit: [mm/min]
PS B/W/D/K <Mode>
Bit 0: Direction of traverse
0: Positive
1: Negative
CM 9123
PL B/W/D <Error code>
0: No error. Positioning was started.
1: Axis does not exist
2: Not a PLC axis
3: Axis is already being positioned
5: Programmed axis not in closed loop
6: Feed rate not permitted
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