CHAPTER3 CPU MODULE OPERATION
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3.8 I/O Pro
cessing an
d Response Delay
3.8.2 D
ire
ct mo
de
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-
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(2) Response delay
An output response which corresponds to the status change in the input module delays for one scan
(maximum) depending on the on timing of an external contact.
Examples
Figure 3.8 DY5E turns on the earliest
Figure 3.9 DY5E turns on the latest
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DX5
DY5E
A program that turns on the output
DY5E when the input DX5 turns on.
Delay time
OFF
ON
0
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External contact
OFF
ON
OFF
ON
DX5
(External
contact)
DY5E
(External
load)
Devices in the
CPU module
OFF
ON
0
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External contact
OFF
ON
OFF
ON
DX5
(External
contact)
DY5E
(External
load)
Devices in the
CPU module
Delay time
(Maximum 1 scan)
END
0
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