Siemens SINUMERIK 840Di Function Manual page 110

Detailed Description
2.4 Protection zones
System variable
$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 elements
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_CHAN_PRO
_N_CHAN_PRO
Data backup
The protection zone definitions are saved in the following files:
File
_N_INITIAL_INI
_N_COMPLETE_PRO
_N_CHAN_PRO
2-38
Type Meaning
REAL Center point of the circular contour[i], absolute abscissa value
REAL Center point of the circular contour[i], absolute ordinate 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
Blocks
All data blocks of the protection zones
All data blocks of the protection zones
All data blocks of the channelspecific protection zones
Axis Monitoring, Protection Zones (A3)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0