Siemens SINUMERIK 840D sl Function Manual page 697

8.5 Axial measurement (optional)
A measuring operation can be initiated from both the part program and synchronized actions.
A measuring mode, the encoder and up to four trigger events are programmed, where the
trigger events are comprised of the probe number (1 or 2) and the activation criterion
(rising/falling signal edge).
If the measured values are to be stored from encoder 1 and 2 for each trigger event, then
only two trigger events can be programmed.
8.5.1 Constraints
Mode change
Measuring job from the part program
A measurement job activated by a part program is not affected by a change in operating
mode. However, it is deleted immediately as soon as the program advances to a new block.
RESET aborts the measuring job.
Measuring job from synchronized actions
A measurement job activated by a modal synchronized action is not affected by a change in
operating mode. The measurement job is modally active beyond block limits.
Block search
Measuring job from the part program
The measurement job is started. No measurement check-back signals are generated.
Measuring job from synchronized actions
Modal measurement jobs are not activated until the programmed conditions are met.
Repos
Measuring job from the part program
If a measurement job is still in progress, it is aborted and restarted after the REPOS block. If
the job had already been completed, it is not restarted.
Measuring job from synchronized actions
Activated measurement jobs remain unaffected.
Extended Functions
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Measurement (M5)
Axial measurement (optional)
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