Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 685)

Skip, Gauge, and Probing Cycles
Chapter 27
27-11
Important: To accurately measure a hole radius and determine its center,
the exact probe tip radius must be available to the control. This value is
entered either through AMP, through paramacro system parameter #5096,
or through the probe parameter table discussed in section 27.5.
Table 27.A shows the paramacro system parameters used to relay
information from the probing operation to the programmer. Refer to the
paramacro chapter for details on these system parameters.
Table 27.A
Paramacro System Parameters for G38 Hole Probing
System
Parameter
Value this parameter holds
#5092 G38 hole center coordinate on first axis
of active plane
#5093 G38 hole center coordinate on second
axis of active plane
#5094 G38 radius of hole
An easy way to view these parameters is to copy them to a common
parameter that may be accessed on a paramacro screen; for example, the
program block:
#500=#5094;
would take the value of the cycles calculated hole radius and copy it to
common parameter 500 that may be viewed in the macro table {COM 2A
PARAM}. Note that the {COM 2A PARAM} parameters also allow a
parameter description to be entered in the table, such as “HOLE RADIUS
VALUE”.