Technical data

Technology functions
CPU 317T: Technology Functions
A5E00251798-03
6-203
6.5.3 FB 433 MC_MeasuringInput - Measuring sensor
Purpose
• The "MC_MeasuringInput" technology function is used to enable recording of
one measurement by means of measuring sensor.
• A measuring sensor records the length of a configured axis or of an external
encoder, based on the trigger by an external event such as an impression mark
or BERO.
• The measurement range can be limited. The first value measured within the
range of the StartPosition and EndPosition is accepted.
• StartPosition = EndPosition is neglected for measurement.
• The function is terminated after the measured value has been recorded and
output, or if the measurement was canceled, for example, by another
command.
• Several operating modes can be selected at input Mode, based on the drive
and measuring components used.
Applicable to
• Measuring input
Requirements
• The axis is enabled for position control
• The connected drive or measuring component supports the selected mode.
Refer to the relevant drive documentation!
Note
Make allowances for the drive reaction times. Further inf
ormation is provided in the
documentation of the drive used
(for example on the "S7-Technology" CD).
Overriding commands
An MC_MeasuringInput command can only be canceled by a further
MC_MeasuringInput command to the same technology object. An
MC_MeasuringInput command does not cancel any other commands.