Siemens SINUMERIK 840D sl Programming Manual page 114

Measuring Cycles for Milling and Machining Centers
5.2 CYCLE971 tool: Measuring milling tools, drills
Note
If the tool diameter (2x $TC_DP6) is smaller than the upper diameter of the probe
(_TP[i,6]), the tool is always positioned in the center of the probe,
if the tool diameter is larger, the tool is offset by the tool radius toward the center onto the
probe. The value of _ID is subtracted. The axis in which the offset is applied (offset axis)
is also specified in _MA (_MA=103 or MA=203).
If no offset axis is specified (_MA=3), the offset is applied in the abscissa, if necessary,
(for G17: X axis).
Parameter
Parameter
_MVAR
_MA
_ID
_MFS[0]
_MFS[1]
_MFS[2]
_MFS[3]
_MFS[4]
_MFS[5]
The following additional parameters are also valid:
_VMS, _TZL, _TDIF, _TSA, _FA, _PRNUM, _EVNUM and _NMSP.
114
Value Meaning
1 Measure with motionless spindle, machine-related
2 Measure with rotating spindle, machine-related
11 Measure with motionless spindle, workpiece-related
12 Measure with rotating spindle, workpiece-related
Number of the measuring axis
1 Measure radius in abscissa direction (milling tool)
2 Measure radius in ordinate direction (milling tool)
3 Measure length at center point of the tool probe
(drill or milling tool)
103 Measure length, offset by radius in abscissa direction (milling tool)
203 Measure length, offset by radius in ordinate direction (milling tool)
REAL, ≥0 Offset
Parameter is usually set to 0.
With multiple cutters the offset of tool length and the highest point of the
tool edge must be specified in _ID for radius measurement and the offset
from the tool radius to the highest point of the tool edge must be
specified for length measurement.
REAL Speed 3rd probing (only with _CBIT[12]=1)
Feed 1st probing
Speed 2nd probing
0: Measurement terminated after 1st probing
Feed 2nd probing
Speed 3rd probing
0: Measurement terminated after 2nd probing
Feed 3rd probing
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
Measuring cycles