Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 675)

Chapter
27
27-1
Skip, Gauge, and Probing Cycles
This chapter describes the external skip, gauge, and probe functions
available on the control. Use this table to find information:
Information on: On page:
External Skip Functions (G31 codes) 27-2
Tool Gauging External Skip functions (G37 codes) 27-4
Hole Probing (G38) 27-8
Parallel Probing Cycle (G38.1) 27-12
Probing Parameters Table 27-15
Use skip, gauge and probe for various automatic measurements, and also
for interfacing automatically to external mechanical devices.
These functions are available:
External Skip (G31-G31.4) ---- These functions move an axis on a linear
path until the control receives an external signal through the PAL
program. The block is aborted, the control records the axis coordinate
as a paramacro parameter, and program execution skips on to the next
block
Tool Gauging (G37 - G37.4) ---- These function identically to the
external skip except that the axis coordinates (at the time the external
signal is received) can be used to modify the tool offset table.
Hole Probing (G38) ---- Use this probing cycle to directly measure the
diameter and center point location of a hole in a part.
Parallel Probing (G38.1) ---- Use this probing cycle to measure the
amount that a part is out of parallel with a specified axis.
Important: The G04 dwell feature may also be enabled as an external skip
or tool gauging command. For details about G04 see chapter 14.
27.1
Chapter Overview
27.2
External Skip, Gauge, and
Probe Functions