Festo SBO***-Q Series, Manual

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4. Commissioning
4-22
Festo P.BE-SBO-Q-EN en 1602e
Application and function of the modes
Triggered Testing of individual parts in stop-and-go or slow part flow.
The trigger signal is generated by a master controller or a
sensor as soon as the check part is in front of the Compact
Vision System. The inspection results are output following the
inspection, and the device then waits for the next valid trig­
gering signal.
Free run Inspection of individual or continuous parts with medium to
fast (continuous) part flow.
The trigger signal is present permanently, irrespective of
whether or not there is a check part in front of the Compact
Vision System. The device acts like a basic sensor. The
inspection results are output following the inspection. After
that, the device begins immediately with the next inspection.
Additionally, there is the possibility to set up a image trigger.
Fixed frame rate Inspection of continuous parts at a constant speed.
The triggering signal is permanently present. The inspection
results are output following the inspection. The device starts
the next inspection in accordance with the defined frame rate.
4.9.1 I/O process in “Triggered” evaluation mode
In the “Triggered” evaluation mode, exactly one cycle is
started through a valid signal at the “Triggering Signal” input
(edge controlled). One cycle thereby includes the image
evaluation and output of results.
Triggering signals are valid only under the following conditions:
– Output “Ready for Operation” signals logic 1
and
– any time period set since output “Ready for operation” =
logic 1 has expired.
This setting is made over the system parameter
“Ignore triggering signal after ready for operation”.