Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 420)

Using QuickPath Plus
Chapter 15
15-2
The angle word (,A) is always interpreted as an absolute angle
regardless of the current mode (G90 or G91).
The L-word is always interpreted as an incremental distance from the
current position regardless of the current mode (G90 or G91). Radius or
diameter mode (G08 - G09) has no effect on the ,A- or L-word.
If it is necessary to program more than one block to perform the QPP
operation being used, and if an error is made in one of the program
blocks, the control will always show the error as being in the first block
of the two blocks regardless of whether the error is in the first or the
second block. If executing in <SINGLE BLOCK> mode, the control
will stop after executing the first block as normal.
If it is necessary to program more than one block to perform the QPP
operation being used, a maximum of 4 non-motion blocks may be
programmed between these blocks. A non-motion block is any block
that does not generate axis motion on one of the two axes in the current
plane.
The following G-codes will cause a syntax error if programmed in any
QPP block:
All G-codes in G-code Group 0 (except G04, G09, and G60)
All G-codes in G-code Group 1 (except G00, G01, G02, and G03).
All G-codes in G-code group 4, 6, 9, 10, 11, and 16.
For a listing of G-codes and their group numbers, see the G-code table
in appendix C in the back of this manual.
If it is necessary to program more than one block to perform a QPP
operation, it will cause an error if the current plane is changed between
blocks (G17, G18, or G19).
If an angle is programmed in a circular QPP block, an error will be
generated.
If an L word is programmed in a G13 or G13.1 block, an error is
generated.