Siemens SINUMERIK 840D sl Programming Manual page 257

Head kinematics
I1 $TC_CARR1...3[n]
I2 $TC_CARR4...6[n]
I3 $TC_CARR15...17[n]
Closure of the I1 = -(I3+I2) vector chain; for fixed-mounted machine kinematics
Table kinematics
I2 $TC_CARR4...6[n]
I3 $TC_CARR15...17[n]
I4 $TC_CARR18...20[n]
Closure of the I4 = -(I3+I2) vector chain; for fixed-mounted machine kinematics
Mixed kinematics
I1 $TC_CARR1...3[n]
I2 $TC_CARR4...6[n]
I3 $TC_CARR15...17[n]
I4 $TC_CARR18...20[n]
Closure of the I1 = -I2 I4 = -I3 vector chain; for fixed-mounted machine kinematics
The result parameters that are not calculated = 0
Intermediate results _OVR[32] to _OVR[71]
Intermediate results (center point of the calibration ball XYZ) and the status are saved in the
fields from _OVR[33...].
Parameters
_OVR[32,33,34]
_OVR[35,36,37]
The linear vectors are assigned to the concrete vectors of the kinematics (I1, I2, etc.) in accordance
with the normalizing process.
_OVR [40]
Measuring cycles
Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
Measuring Cycles for Milling and Machining Centers
5.10 CYCLE996 workpiece: Measure kinematics
_OVR[1]..._OVR[3]
Corresponds
_OVR[4]..._OVR[6]
to
_OVR[15]..._OVR[17]
_OVR[18]..._OVR[20] = 0
_OVR[4]..._OVR[6]
Corresponds
_OVR[15]..._OVR[17]
to
_OVR[18]..._OVR[20]
_OVR[1]..._OVR[3] = 0
_OVR[1]..._OVR[3]
Corresponds
_OVR[4]..._OVR[6]
to
_OVR[15]..._OVR[17]
_OVR[18]..._OVR[20]
Data type Result
REAL Linear vectors of 1st rotary axis are not normalized
REAL Linear vectors of 2nd rotary axis are not normalized
REAL Measurement counter
x0 = 1st measurement of 1st rotary axis begun
x1 = 1st measurement of 1st rotary axis OK
x2 = 2nd measurement of 1st rotary axis OK
x3 = 3rd measurement of 1st rotary axis OK
0x = 1st measurement of 2nd rotary axis begun
1x = 1st measurement of 2nd rotary axis OK
2x = 2nd measurement of 2nd rotary axis OK
3x = 3rd measurement of 2nd rotary axis OK
33 = Both rotary axes measured
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