Detailed description
2.2 Protection zones
Basic logic functions: Axis monitoring, protection zones (A3)
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Function Manual, 11/2006, 6FC5397-0BP10-2BA0
DB21, ... DBX278.0 to DBX279.1 (Channel-specific protection zone 1 - 10 violated)
Activate
The preactivated protection zones can be activated from the PLC user program:
DB21, ... DBX8.0 to DBX9.1 (Activate machine-related protection zone 1 - 10)
DB21, ... DBX10.0 to DBX11.1 (Activate channel-specific protection zone 1 - 10)
Deactivation
Protection zones activated from the part program cannot be deactivated by the PLC user
program.
Note
It follows from the rules listed above that protection zones that should be activated via the
PLC user program are intended specially for this. Preactivation in the part program is only
useful for these protection zones.
For protection zones that are known only in the part program and not in the PLC user
program, only activation in the part program makes sense.
Automatic activation after the control powers up
The configuration for automatic activation of a protection zone after the control powers up is
performed via the following system variable:
•
Channel-specific protection zone:
$SC_PA_ACTIV_IMMED[ n ]
•
Machine or NC-specific protection zone:
$SN_PA_ACTIV_IMMED[ n ]
With automatic activation, no relative offset of the protection zone is possible.
Block search with calculation
For block search with calculation, the last programmed activation state of a protection zone
is always taken into account.
Program test
In automatic modes, activated and preactivated protection zones are monitored even during
program control: PROGRAM TEST.
Summary of Contents for SINUMERIK 840D sl
Page 282: ...Index Basic logic functions Acceleration B2 64 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 388: ...Basic logic functions Travel to fixed stop F1 Function Manual 11 2006 6FC5397 0BP10 2BA0 52 ...
Page 962: ...Index Basic logic functions Emergency Stop N2 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1704: ...Constraints Basic logic functions Spindles S1 94 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1716: ...Index Basic logic functions Spindles S1 106 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1996: ...Index Basic logic functions Tool Offset W1 208 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2150: ...Table of contents Basic logic functions Appendix 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2184: ...Glossary Basic logic functions Appendix 38 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...