Np_Dir - Siemens SINUMERIK 840D sl Function Manual

Example
The local coordinate system of the 19th protection area element is moved by the following
vector compared to the coordinate system of the previous protection area element:
● X direction: 25.0
● Y direction: 50.0
● Z direction: 37.25
X, Y, Z
X', Y', Z' Coordinate system of the current protection area element
Program code
; 19. protection area element, offset vector
N100 $NP_OFF[18,0] = 25.0
N110 $NP_OFF[18,1] = 50.0
N120 $NP_OFF[18,2] = 37.25
6.2.4.12

$NP_DIR

Function
The direction vector through which the local coordinate system of the protection area element
is rotated compared to the coordinate system of the previous protection area element should
be entered in the system variable. The angle of rotation should be entered in $NP_ANG
(Page 249).
Boundary conditions
● The absolute value of the direction vector must be greater than: 1*10
● A work offset parameterized in $NP_OFF (Page 246) is performed before the rotation.
Syntax
$NP_DIR[<n>,<i>] = <value>
Special functions
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Coordinate system of the previous protection area element
K8: Geometric machine modeling - only 840D sl
Comment
X = 25.0
Y = 50.0
Z = 37.25
6.2 Commissioning
–6
247