Siemens SINUMERIK 840Di Function Manual page 112

Detailed Description
2.4 Protection zones
Deactivation
A protection zone can be deactivated from a part program only.
RESET response
The activation status of a protection zone is retained even after NC-RESET and program end.
Memory requirements
The memory requirements with regard to protection zones are defined with the following
parameters:
• Maximum number of protection zones that can be simultaneously activated in the
• Maximum number of contour elements that can be defined per protection zone:
Deactivation, preactivation, activation via part program
The activation status of a channel- or machine-specific protection zone is defined by the
corresponding subroutine:
• Channel-specific protection zone:
• Machine or NC-specific protection zone:
Parameters
n
state
xMov,
yMov, zMov
Offsets
During preactivation or activation of the protection zone, an offset can be entered in 0 to 3
dimensions. The offset refers to:
• Workpiece-specific protection zones: Machine zero
• Tool-specific protection zones: Tool holder reference point F
2-40
channel:
MD28210 $MC_MM_NUM_PROTECT_AREA_ACTIVE
MD28212 $MC_MM_NUM_PROTECT_AREA_CONTUR
CPROT (n, state, xMov, yMov, zMov)
NPROT (n, state, xMov, yMov, zMov)
Type Description
Number of the protection zone
INT
Activation status
INT
0: Deactivated
1: Preactivated
2: Enabled
Offset values of the previously defined protection zone in the geometry axes
REAL
Note
A protection zone cannot be activated in a single channel with different offsets
simultaneously.
Axis Monitoring, Protection Zones (A3)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0