Siemens SINUMERIK 840D sl Programming Manual page 402
Measuring cycles hmi sl
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- Function manual (2184 pages) ,
- Programming manual (1334 pages) ,
- Commissioning manual (1102 pages)
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Data description
9.2 Cycle data
Tool offset mode with tool measurement
_CHBIT[3]=0:
_CHBIT[3]=1:
Mean value for workpiece measurement with automatic tool correction (_EVNUM >0)
_CHBIT[4]=0:
_CHBIT[4]=1:
Inclusion of empirical value (_EVNUM >0)
_CHBIT[5]=0:
_CHBIT[5]=1:
Tool offset mode for workpiece measurement with automatic tool offset
_CHBIT[6]=0:
_CHBIT[6]=1:
An offset in the set-up/additive offset can also be programmed, if these are set up. The type
of calculation is also defined by _CHBIT[6] and also _CHBIT[8]:
_CHBIT[6] = 0:
_CHBIT[8] = 0:
_CHBIT[6] = 1:
_CHBIT[8] = 0:
_CHBIT[8]=1:
402
First-time measurement
The determined tool data (length and radius) are written into the geometry data
of the tool. The wear is deleted.
Remeasurement
The difference that is determined is entered into the appropriate wear data of the
tool. The geometry data remains unchanged.
no mean value derivation over several parts
For the formula used to calculate the mean value, 0 is used as the old mean
value. The calculated mean value is not saved.
When calculating the mean value, the value from the mean value memory _MV[ ]
programmed using _EVNUM, is used for the calculation and then the new mean
value is saved in this mean value memory.
The empirical value _EV[ ] is subtracted from the measured actual value.
The empirical value _EV[ ] is added to the measured actual value.
The determined offset value is added in the wear memory (length and radius) of
the specified tool and is incorporated in the D number specified using _KNUM
.
The length and the radius of the specified tool is corrected by the determined
offset value and entered into the appropriate geometry memory.
The corresponding wear memory is calculated and then set to zero.
The offset value calculated is included (added) in the corresponding total offset
value memory.
The offset value calculated is included in the set-up offset memory taking the
corresponding total offset value memory into account and the total offset memory
is deleted.
Independent of _CHBIT[6], the determined offset value is additively incorporated
into the appropriate setting-up offset memory.
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
Measuring cycles
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