Siemens SINUMERIK 840D sl Programming Manual page 225

3.3 Checking for protection zone violation, working area limitation and software limit switches (CALCPOSI)
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Job Planning
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
:
(Part 2) Note
If several limits are violated simultaneously, the limit with the greatest restriction on
the specified traversing distance is signaled.
1
2
3
1x
2x
:
(Part 3)
1xx
2xx
:
(Part 4)
1xxx
Units digit
Software limit switches are limiting the traversing distance
Working area limits are limiting the traversing distance
Protection zones are limiting the traversing distance
Tens digit
The initial value violates the limit
The specified straight line violates the limit.
This value is also returned if the end point does not violate
any limit itself, but the path from the starting point to the end
point would cause a limit value to be violated (e.g. by passing
through a protection zone, curved software limit switches in
the WCS for non-linear transformations, e.g. transmit).
Hundreds digit
AND units digit == 1 or 2:
The positive limit value has been violated.
AND units digit == 3 :
1)
An NC-specific protection zone has been violated.
AND units digit == 1 or 2:
The negative limit value has been violated.
AND units digit == 3 :
1)
A channel-specific protection zone has been violated.
Thousands digit
AND units digit == 1 or 2:
Factor, with which the axis number is multiplied, that violates
the limit. Numbering of the axes begins with 1.
Reference:
Software limit switch: Machine axes

Working area limitation: Geometry axes

AND units digit == 3 :
1)
Factor with which the number of the violated protection zone
is multiplied.
Protection zones
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