Omron CP1E CPU UNIT SOFTWARE - 10-1 Interrupts; Overview

9 Quick-response Inputs
9-2
CP1E CPU Unit Software User’s Manual(W480)
9-1 Quick-response Inputs
Quick-response inputs can be used with any model of CP1E CPU Unit.
The quick-response inputs can read pulses with an ON time as short as 50 µs even if they are shorter
than the cycle time. Use the quick-response inputs to read signals shorter than the cycle time, such as
inputs from photomicrosensors.
The pulse widths of quick-response input signals must meet the following conditions.
9-1-1 Overview
END
Cycle time
Can read ON signals
shorter than this time.
Pulse signal from photomicrosensor
or other device
Built-in input
Cycle time
Input bit
Input bit
ON for one scan
in the next cycle
I/O refresh
I/O refresh
Cyclic tasks
(ladder programs)
50μs min. 50μs min.