Siemens Sinumerik 840D sl Programming Manual page 350

Supplementary commands
15.3 Working area limitation
The coordinates for the individual axes apply in the basic coordinate system:
The working area limitation for all validated axes must be programmed with the WALIMON
command. The WALIMOF command deactivates the working area limitation. WALIMON is the
default setting. Therefore, it only has to be programmed if the working area limitation has been
disabled beforehand.
Syntax
G25 X...Y...Z...
G26 X...Y...Z...
WALIMON
WALIMOF
Meaning
G25:
G26:
X... Y... Z...:
WALIMON:
WALIMOF:
In addition to programming values using G25/G26, values can also be entered using axis-
specific setting data:
SD43420 $SA_WORKAREA_LIMIT_PLUS (Working area limitation plus)
SD43430 $SA_WORKAREA_LIMIT_MINUS (Working area limitation minus)
350
Lower working area limitation
Assignment of values in channel axes in the basic coordinate system
Upper working area limitation
Assignment of values in channel axes in the basic coordinate system
Lower or upper working area limits for individual channel axes
The limits specified refer to the basic coordinate system.
Switch working area limitation on for all axes
Switch working area limitation off for all axes
Programming Manual, 01/2015, 6FC5398-1BP40-5BA2
Fundamentals