Festo SBO Q Series, Руководство пользователя

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4. Commissioning
4−25
Festo P.BE−SBO−Q−EN en 0702a
Note
The rate at which images are recorded/results are output
varies and depends on the evaluation time of the individ
ual images.
Function In this evaluation mode, the device acts like a simple sensor
which is constantly testing and outputting. With this, continu
ous evaluation is possible. Output synchronisation with the
higher−ordered controller (PLC) is only possible under certain
conditions, since the ready for operation" output during this
time stays at logical 0.
If such an output signal of the results is needed, the system
parameter Ignore trigger signal after ready for operation"
can be used. In this case, the output ready for operation"
goes to logical 1 after outputting the results for the set
duration. The higher−ordered controller (PLC) can now read
the valid applied results.
If the trigger signal" input still indicates logical 1 after the
set duration has elapsed, the next evaluation is started.
The results are only written to the outputs when the device is
finished with the image evaluation and the specified system
parameter earliest start of output" has elapsed.
The outputs are valid until the specified system parameter
earliest start of output after beginning of cycle" of the next
cycle has elapsed.
If the input trigger signal" is reset to logical 0, the free run
mode ends. After the current image evaluation is finished
(incl. earliest start of output after beginning of cycle"), the
output ready for operation" goes back to logical 1.