Siemens SINUMERIK 828D Programming Manual page 568

Tables
16.7 Predefined functions
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
568
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 parameter 3rd parameter 4th parameter
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
VAR REAL [3]:
Result:
Abscissa,
ordinate and
radius of
calculated
circle center
point
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
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
Explanation
CALCDAT: Calculate circle data
Calculates radius and center
point of a circle from 3 or 4 points
(according to parameter 1), which
must lie on a circle. The points
must be different.
5th 6th
parameter parameter
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
independen protection
t of active zone
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.
Fundamentals