Siemens SINUMERIK 840Di sl Programming Manual page 112

Positional Data
3.9 Working area limitation in WCS/SZS (WALCS0 ... WALCS10)
Programming
The "working area limitation in the "WCS/SZS" is activated by selecting a working area
limitation group. G commands are used to make the selection:
WALCS1
...
WALCS10
The de-activation of the "working area limitation in the WCS/SZS" is realized using G
commands:
WALCS0
Parameter
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 WALCS1 - WALCS10,
by writing to channel-specific system variables:
System variable
Setting the working area limits
$AC_WORKAREA_CS_PLUS_ENABLE [WALimNo, ax]
$AC_WORKAREA_CS_LIMIT_PLUS [WALimNo, ax]
$AC_WORKAREA_CS_MINUS_ENABLE [WALimNo, ax]
$AC_WORKAREA_CS_LIMIT_MINUS [WALimNo, ax]
Selecting the reference frame
$AC_WORKAREA_CS_COORD_SYSTEM [WALimNo]
<WALimNo>:
<ax>:
112
Activating working area limitation group No. 1
Activating working area limitation group No. 10
De-activating the active working area limitation group
Description
Validity of the working area limitation in the positive axis
direction.
Working area limitation in the positive axis direction.
Only effective, if:
$AC_WORKAREA_CS_PLUS_ENABLE = TRUE
Validity of the working area limitation in the negative axis
direction.
Working area limitation in the negative axis direction.
Only effective, if:
$AC_WORKAREA_CS_PLUS_ENABLE = 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 of the axis for which the value is valid.
Description
Workpiece coordinate system (WCS)
Settable zero system (SZS)
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
Fundamentals