Siemens SINUMERIK 840D sl Programming Manual page 305

Prerequisite
The tool probe must be calibrated.
The approximate tool dimensions must be entered in the tool offset data:
Tool type, cutting edge position on turning tools, radius, length 1, length 2.
The tool to be measured must be active with its tool offset values when the cycle is called.
For a milling cutter, the setting data SD 42950: TOOL_LENGTH_TYPE = 2 must be set
(length calculation as for turning tool). For milling tools, the tool spindle must be declared the
master spindle.
For a drill, SD 42950: TOOL_LENGTH_TYPE = 0 is also possible (refer to Chapter
"Measuring drills – special applications").
Parameter
Parameter
_MVAR
_MA
_STA1
_CORA
Additional parameters _VMS, _TZL, _TDIF, _TSA, _FA, _PRNUM, _EVNUM and
_NMSP also apply.
See also
Defining parameters (Page 2-2)
Result parameters (Page 2-4)
Variable measuring velocity: _VMS (Page 2-14)
Tolerance parameters: _TZL, _TMV, _TUL, _TLL, _TDIF and _TSA (Page 2-15)
Measurement path: _FA (Page 2-16)
Probe type, probe number: _PRNUM (Page 2-17)
Empirical value, mean value: _EVNUM (Page 2-18)
Multiple measurement at the same location: _NMSP (Page 2-19)
Measuring cycles
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
6.3 CYCLE982 tool: Measure turning and milling tools
Data type Meaning
1 or xxx01 Measure tool (machine-related)
11 or xxx11 Measure tool (workpiece-related)
More precise parameterization for milling tools is entered in
the 3rd to 5th digits of _MVAR.
1, 2 Measuring axis
REAL For milling tools: Start angle
REAL For milling tools:
Correction angle setting after reversal
(for measurement with reversal only _MVAR=xx1x1)
Measuring Cycles for Turning Machines
6-29