Siemens SINUMERIK 840DE Programming Manual page 104

Positional Data
3.8 Working area limitation (G25/G26, WALIMON, WALIMOF)
N10 G0 G90 F0.5 T1
N20 G25 X-80 Z30
N30 G26 X80 Z330
N40 L22
N50 G0 G90 Z102 T2
N60 X0
N70 WALIMOF
N80 G1 Z-2 F0.5
N90 G0 Z200
N100 WALIMON
N110 X70 M30
Description
Reference points on the tool
When tool length compensation is active, the reference point is the tip of the tool, otherwise it
is the toolholder reference point. If the tool is positioned outside the specified area or leaves
this area, the program stops executing.
Programmable working area limitation, G25/G26
An upper (G26) and lower (G25) working area limit can be defined for each axis. These
values apply immediately and are not lost on Reset and when the control is switched on
again.
The tool (milling tool) radius can be changed in the channel-specific machine data
$MC_WORKAREA_WITH_TOOL_RADIUS (see "Advanced").
3-30
;Define the lower limit for
;the individual coordinate axes
;Define the upper limit
;Cutting program
;To tool change location
;Deactivate working area limitation
;Drill
;Back
;Activate working area limitation
;End of program
Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
Fundamentals