Siemens Sinumerik 840D sl Programming Manual page 239

3.3 Checking for protection zone violation, working area limitation and software limits (CALCPOSI)
_BASE_SYS
_TESTLIM
Example
In the example (refer to the diagram), X software limits and working area limits are shown. In
addition, three protection zones are defined, the two channel-specific protection zones C2
and C4 and well as the NCK protection zone N3. C2 is a circular, active, tool-related
protection zone with a radius of 2 mm. C4 is a square, pre-activated and workpiece-related
protection zone with 10 mm side length and N3 is a rectangular, active protection zone with
10 mm and 15 mm side lengths. In the following NC, initially, the protection zones and the
working field limits are defined as sketched, and the CALCPOSI function is called with various
parameter assignments. The results of each individual CALCPOSI call are summarized in the
table at the end of the example.
Job planning
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
FALSE or parameters not specified:
When evaluating the position and length data, the G code of
group 13 (G70, G71, G700, G710; inch/metric) is evaluated. If
G70 is active and the basic system is metric (or G71 is active
and inch), the WCS system variables $AA_IW[X] and
$AA_MW[X]) are provided in the basic system and must, if
necessary, be reconverted using the CALCPOSI function.
TRUE:
When evaluating the position and length data, the basic
system of the control is always used independent of the value
of the active G of group 13.
Limits to be checked (binary-coded):
1: Monitor software limits
2: Monitor working area limits
3: Monitor activated protection zones
4: Monitor pre-activated protection zones
Combinations by adding the values. Default: 15; check all.
Protection zones
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