HEIDENHAIN iTNC 530 HSCI - Module 9120 Start PLC Axis; Module 9121 Stop PLC Axis

July 2013 6.2 PLC axes 631
Module 9120 Start PLC axis
This module starts the positioning of a PLC axis regardless of other processes
in the control.
Conditions:
 Status changes through a PLC positioning command are not detected until
the next PLC scan.
 The axis must be activated in MP10 and identified in MP100 as a PLC axis.
 Traverse over the software limit switches is not checked.
 The axis must be stationary before positioning. Interrupt a running
positioning movement with Module 9121.
 Feed-rate override is disabled. To change the feed rate, use Module 9124.
 If no reference mark has been traversed, the positioning process builds on
the counter value as it was upon switch-on.
Call:
PS B/W/D/K <Axis>
0 to 17 represent axes 1 to 18
PS B/W/D/K <Target position>
Input unit: [0.0001 mm]
PS B/W/D/K <Feed rate>
Input unit: [mm/min]
PS B/W/D/K <Mode>
Bit 0: Type of target position input
0: Absolute, i.e. relative to the machine datum
1: Incremental
CM 9120
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
4: Absolute position is outside of modulo range
5: Programmed axis not in closed loop
6: Feed rate not permitted
Module 9121 Stop PLC axis
Stops a running PLC positioning process in an axis.
Condition:
 Status changes through a PLC positioning command are not detected until
the next PLC scan.
Call:
PS B/W/D/K <Axis>
0 to 17 represent axes 1 to 18
CM 9121
PL B/W/D <Error code>
0: Positioning is canceled
1: Axis does not exist
2: Not a PLC axis
3: Axis was already stationary