Channel-Specific Measuring; Measurement - Siemens SINUMERIK 840D sl Function Manual

Spindle position and monodirectional probe
The use of monodirectional probes in milling machines and machining centers requires that
the spindle can be positioned with the SPOS function and the switching signal of the probe
transferred over 360°.
The probe must be mechanically aligned in the spindle to permit measurements in the following
directions at the 0° spindle position:
Note
The complete measurement takes longer because the spindle needs to be positioned several
times with SPOS during the measuring cycle.
8.3

Channel-specific measuring

8.3.1

Measurement

Activation
The measurement is activated from the part program. A trigger event and a measuring method
are programmed.
A distinction is made between two measuring methods:
● MEAS: Measurement with deletion of distance-to-go
Example:
N10 G01 F300 X300 Z200 MEAS=-2
Trigger event is the falling edge (-) of the second probe (2).
● MEAW: Measurement without deletion of distance-to-go
Example:
N20 G01 F300 X300 Y100 MEAW=1
Trigger event is the rising edge of the first probe (1).
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Plane
G17 (X-Y)
G18 (Z-X)
G19 (Y-Z)
M5: Measurement
8.3 Channel-specific measuring
Measurement direction
Positive X direction
Positive Z direction
Positive Y direction
499