Festo SBO Q Series, Руководство пользователя

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4. Commissioning
4−31
Festo P.BE−SBO−Q−EN en 0702a
Signal curve using system parameters
The signal curve when using system parameters in the fixed
frame rate" evaluation mode could look like the following:
I0
O0
1
1 1
1
1
1
2 2 2
Constant cycle
duration Constant cycle
duration
Power
Constant trigger
B1 Image generation
corresponding to cycle
Write outputs
Write outputs
Internal outputs O1, O2, LED D
B1 short
evaluation
Constant cycle
duration
Trigger ignored,
wait O0 = 1
Wait until last
evaluation is complete
B3 short image
evaluation
B1
output B2
output
B3
output
B2 Image generation
corresponding to cycle B3 Image generation
corresponding to cycle
B2 long image
evaluation
Actual
(asynchronous)
image
ev
aluation
Wait
until end
Wait until
end
Output invalid
Wait until end
Fig.4/9: Evaluation mode fixed frame rate" Signal curve using system parameters
Negative example
Earliest start of output after beginning of cycle is chosen too
high after N frames, an error was triggered (see system
parameter settings).