Cycle974 Workpiece: 1-Point Measurement; Function Overview - Siemens SINUMERIK 840D sl Programming Manual

Measuring Cycles for Turning Machines

6.5 CYCLE974 workpiece: 1-point measurement

6.5 CYCLE974 workpiece: 1-point measurement
6.5.1

Function overview

Function
This measuring cycle can be used in various measurement variants to determine workpiece
dimensions in a 1-point measurement.
It is also possible to determine a zero offset (ZO) or an automatic tool offset.
● 1-point measurement and ZO determination
● 1-point measurement and tool offset
● 1-point measurement with reversal and tool offset
The measuring cycle determines the actual value of the workpiece with respect to the
workpiece zero in the selected measuring axis _MA and calculates the difference from a
defined setpoint (setpoint-actual value).
An empirical value stored in data block GUD5 can be included. For variants "with tool offset"
it is also possible to calculate a mean value over several parts.
The cycle checks that a set tolerance range for the measured deviation is not violated and
automatically corrects the ZO memory or tool offset memory selected in _KNUM. If KNUM=0,
there is no offset.
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Programming Manual, 03/2009 Edition, 6FC5398-4BP10-2BA0
Measuring cycles