Siemens SINUMERIK 840D sl Function Manual page 116
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Detailed description
2.2 Protection zones
System variable
$SN_PA_LIM_3DIM[n]
$SC_PA_LIM_3DIM[n]
$SN_PA_PLUS_LIM[n]
$SC_PA_PLUS_LIM[n]
$SN_PA_MINUS_LIM[n]
$SC_PA_MINUS_LIM[n]
$SN_PA_CONT_NUM[n]
$SC_PA_CONT_NUM[n]
$SN_PA_CONT_TYP[n, i]
$SC_PA_CONT_TYP[n, i]
$SN_PA_CONT_ABS[n, i]
$SC_PA_CONT_ABS[n, i]
$SN_PA_CONT_ORD[n, i]
$SC_PA_CONT_ORD[n, i]
$SN_PA_CENT_ABS[n, i]
$SC_PA_CENT_ABS[n, i]
$SN_PA_CENT_ORD[n, i]
$SC_PA_CENT_ORD[n, i]
$SN_... are system variables for NC and machine-specific protection zones.
$SC_... are system variables for channel-specific protection zones.
The index "n" corresponds to the number of the protection zone: 0 = 1. Protection zone
The index "i" corresponds to the number of the contour element: 0 = 1. Contour element
The contour elements must be defined in ascending order.
Note
The system variables of the protection-zone definitions are not restored with REORG.
Data of the protection-zone definitions
data storage
The protection-zone definitions are stored in the following files:
File
_N_NCK_PRO
_N_CHAN1_PRO
_N_CHAN2_PRO
50
Type
Significance
Type of limitation in the third dimension
INT
0
No limitation
1
Limit in plus direction
2
Limit in minus direction
3
Limit in positive and negative direction
Value of the limit in the positive direction in the 3rd
REAL
dimension
Value of the limit in the negative direction in the 3rd
REAL
dimension
Number of valid contour elements
INT
Contour type[i], contour type (G1, G2, G3) of the nth contour
INT
element
End point of the contour[i], abscissa value
REAL
End point of the contour[i], ordinate value
REAL
Center point of the circular contour[i], absolute abscissa
REAL
value
Center point of the circular contour[i], absolute ordinate
REAL
value
Blocks
Data block for NCspecific protection zones
Data block for channelspecific protection zones in channel 1
Data block for channelspecific protection zones in channel 2
Basic logic functions: Axis monitoring, protection zones (A3)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
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