Siemens SINUMERIK 828D Programming Manual page 409

Meaning
The working area limitations of the individual axes are set and the reference frame (WCS or
SZS), in which the working area limits are to be effective, activated with
writing to channel-specific system variables:
System variable
Setting the working area limits
$P_WORKAREA_CS_PLUS_ENABLE [<GN>, <AN>]
$P_WORKAREA_CS_LIMIT_PLUS [<GN>, <AN>]
$P_WORKAREA_CS_MINUS_ENABLE [<GN>, <AN>]
$P_WORKAREA_CS_LIMIT_MINUS [<GN>, <AN>]
Selecting the reference frame
$P_WORKAREA_CS_COORD_SYSTEM [<GN>]
<GN>:
<AN>:
Fundamentals
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
Meaning
Validity of the working area limitation in the positive axis
direction.
Working area limitation in the positive axis direction.
Only effective, if:
$P_WORKAREA_CS_PLUS_ENABLE [<GN>,<AN>] =
TRUE
Validity of the working area limitation in the negative axis
direction.
Working area limitation in the negative axis direction.
Only effective, if:
$P_WORKAREA_CS_MINUS_ENABLE [<GN>,<AN>] =
TRUE
Coordinate system to which the working area limitation
group is referred:
Value
1
3
Number of the working area limitation group
Channel axis name
Supplementary commands
14.3 Working area limitation
Meaning
Workpiece coordinate system (WCS)
Settable zero system (SZS)
- , by
WALCS1 WALCS10
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