Siemens SINUMERIK 840D sl Programming Manual page 553

2. Geometry functions
Keyword/ Result
function
identifier
CALCDAT BOOL:
Error status
Names Result
CALCPOSI INT:
Status
0 OK
-1 DLIMIT
neg.
-2 Trans.
n.def.
1 SW limit
2 Working
area
3 Prot. zone
See PGA for
more
Explanation:
CALCPOSI
INTERSEC BOOL:
Error status
Fundamentals
Programming Manual, 09/2011, 6FC5398-1BP40-2BA0
1st parameter 2nd parameter
VAR REAL [,2]: INT: Number of
Table with input input points for
points (abscissa calculation
and ordinate for (3 or 4)
points 1, 2, 3,
etc.)
1st parameter 2nd para-
meter
REAL: REAL:
Starting Increment:
position in Path definition
WCS
[0] Abscissa
[0] Abscissa
[1] Ordinate
[1] Ordinate
[2] Applicate
[2] Applicate
referred to
starting
position
CALCPOSI is for checking whether, starting from a defined starting point, the geometry axes
can traverse a defined path without violating the axis limits (software limits), working area
limitations, or protection zones. If the defined path cannot be traversed without violating
limits, the maximum permissible value is returned.
VAR REAL [11]: VAR REAL [11]:
First contour Second contour
element element
3rd parameter Explanation
VAR REAL [3]: CALCDAT: Calculate circle data
Result: Calculates radius and center
Abscissa, point of a circle from 3 or 4 points
ordinate and (according to parameter 1), which
radius of must lie on a circle. The points
calculated must be different.
circle center
point
3rd parameter 4th parameter
REAL: REAL:
Minimum Return value
clearances of
possible incr.
limits to be
path if path
observed
from parameter
[0] Abscissa 3 cannot be
fully traversed
[1] Ordinate
without
[2] Applicate
violating limit
[3] Lin.
machine
Axis
[4] Rot. Axis
VAR REAL [2]:
Result vector:
Intersection
coordinate,
abscissa and
ordinate
Tables
16.7 Predefined functions
5th para- 6th para-
meter meter
BOOL: bin
encoded
0:
to be
Evaluation
monitored
G code
group 13 1 SW limits
(inch/metr.) 2 working
area
1:
4 active
Reference
protection
to basic
zone
control
system, 8 preactive
indepen- protection
dent of zone
active
G codes
group 13
Intersection: Calculation of
intersection
The intersection between two
contour elements is calculated.
The intersection coordinates
are return values. The error
status indicates whether an
intersection was found.
553