Probe Type, Probe Number: _Prnum - Siemens SINUMERIK 840D sl Programming Manual

CAUTION
Even if inches is selected as the measuring system, measurement distance _FA is always
specified in mm!
In that case, convert the measurement distance to mm:
_FA [mm] = _FA' [inch] · 25.4
Note
In previous measuring cycle versions, _FA was the name for "multiplication factor of
measurement distance". Its task and function remain the same.
_FA is now directly assigned mm as the unit of measurement.
2.3.13

Probe type, probe number: _PRNUM

General
● The data for the workpiece probes are stored in the data block (GUD6) in array
● The data for the tool probes are stored (in relation to machine) in the data block (GUD6)
● The data for the tool probes is stored (specifically for each machine) in the data block
Arrays are available for up to 99 probes. In the default setting, there are arrays for three
probes each.
_PRNUM states the number of the probe. This number is used as the index for the probe's
array.
Array type _WP, _TP, or _TPW is selected in the cycle via the measuring variant and
measuring task: workpiece or tool measurement.
Note
Which measuring input (1 or 2) is used for workpiece measurement and which is used for
tool measurement is defined in _CHBIT[0] and _CHBIT[1] (see chapter "Data description,
cycle data").
The arrays are configured by the machine manufacturer during installation (see Chapter
"Data description").
Measuring cycles
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
_WP[ ] workpiece probe.
in array _TP[ ] - tool probe.
(GUD6) in array _TPW[ ] - tool probe in any workpiece coordinate system.
2.3 Description of the most important defining parameters
Parameter description
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