Siemens SINUMERIK 840D sl Function Manual page 112

Detailed description
2.2 Protection zones
2.2.3 Definition via part program instruction
General
A protection-zone definition must contain the following information:
• Protection zone type (workpiece- or tool-related)
• Orientation of the protection zone
• Type of limitation in the third dimension
• Upper and lower limit of the protection zone in the third dimension
• Activation type ("Protection zone immediately active": only possible via system variable)
• Contour elements
Definition of protection zones
The following systematic must be maintained in the definition of protection zones:
• Definition of the working plane: G17, G18 or G19
• Definition beginning
– Channel-specific protection zones: CPROTDEF(...)
– Machine or NC-specific protection zone: NPROTDEF(...)
• Contour description for protection zone
• End of definition: EXECUTE(...)
Definition of the working plane
The desired working plane to which the contour description of the protection zone refers
must be selected with G17, G18, G19 before start of the definition. It may not be changed
before the end of the definition. Programming of the applicate is not permitted between start
and end of the definition.
Definition beginning
The definition start is defined by the corresponding subroutine:
• CPROTDEF(n, t, applim, appplus, appminus)
• NPROTDEF(n, t, applim, appplus, appminus)
Parameters Type
n
t
applim
46
Description
INT Number of defined protection zone
BOOL Protection zone type
Tool-oriented protection zone
TRUE
Workpiece-related protection zone
FALSE
INT Type of limitation in the third dimension
0 No limitation
1 Limit in plus direction
Basic logic functions: Axis monitoring, protection zones (A3)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0