Siemens Sinumerik 840D sl Programming Manual page 238

Protection zones
3.3 Checking for protection zone violation, working area limitation and software limits (CALCPOSI)
_STARTPOS
_MOVEDIST
_DLIMIT
_MAXDIST
238
Hundreds digit
100:
The positive limit value is violated (only if the units digit is 1 or
2, i.e. for software limits and working area limits)
100:
An NCK protection zone is violated (only if the units digit is 3).
200:
The negative limit value is violated (only if the units digit is 1 or
2, i.e. for software limits and working area limits)
200:
A channel-specific protection zone is violated (only if the units
digit is 3).
Thousands digit
1000:
Factor, by which the number of the axis that violates the limit
is multiplied (only if the units digit is either 1 or 2, i.e. for
software limits and working area limits).
The axis count starts at 1 and refers in the case of violated
software limits (units digit = 1) to the machine axes and for
violated working area limits (units digit = 2) to the geometry
axes.
1000:
Factor by which the number of the violated protection zone is
multiplied (only if the units digit is 3).
If several protection zones are violated, the limit resulting in
the greatest limitation of the traversing path is indicated in the
hundreds and thousands digit of the protection zone.
Starting value for abscissa [0], ordinate [1] and applicate [2] in
the (WCS)
Incremental path definition for abscissa [0], ordinate [1] and
applicate [2]
[0] - [2]: Minimum clearances assigned to the geometry axes.
[3]: Minimum clearance assigned to a linear machine axis for
non-linear transformation, if no geometry axis can be uniquely
assigned.
[4]: Minimum clearance assigned to a rotary machine axis for
non-linear transformation, if no geometry axis can be uniquely
assigned. Only for special transformations, if SW limits are to
be monitored.
Array [0] - [2] for the return value. Incremental path in all three
geometry axes without violating the defined minimum
clearance of an axis limit in the machine axes involved.
If the traversing path is not restricted, the contents of this
return parameter are the same as the contents of _MOVDIST.
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
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