Siemens SINUMERIK 840Di sl - Page 112

Positional Data
3.9 Working area limitation in WCS/SZS (WALCS0 ... WALCS10)
Fundamentals
112 Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
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
Activating working area limitation group No. 1
...
WALCS10
Activating working area limitation group No. 10
The de-activation of the "working area limitation in the WCS/SZS" is realized using G
commands:
WALCS0
De-activating the active working area limitation group
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 Description
Setting the working area limits
$AC_WORKAREA_CS_PLUS_ENABLE [WALimNo, ax] Validity of the working area limitation in the positive axis
direction.
$AC_WORKAREA_CS_LIMIT_PLUS [WALimNo, ax] Working area limitation in the positive axis direction.
Only effective, if:
$AC_WORKAREA_CS_PLUS_ENABLE = TRUE
$AC_WORKAREA_CS_MINUS_ENABLE [WALimNo, ax] Validity of the working area limitation in the negative axis
direction.
$AC_WORKAREA_CS_LIMIT_MINUS [WALimNo, ax] Working area limitation in the negative axis direction.
Only effective, if:
$AC_WORKAREA_CS_PLUS_ENABLE = TRUE
Selecting the reference frame
Coordinate system to which the working area limitation
group is referred:
Value Description
1 Workpiece coordinate system (WCS)
$AC_WORKAREA_CS_COORD_SYSTEM [WALimNo]
3 Settable zero system (SZS)
<WALimNo>: Number of the working area limitation group.
<ax>: Channel axis name of the axis for which the value is valid.