Input Response Times - Omron CP1L-EL20DR-D Operation Manual

Computing the Cycle Time
Input Response
Times
PLC Setup
Input
Input ON delay
(Interrupt to
CPU Unit)
Cycle time
Instruction
execution
Output
Maximum I/O
response time
Calculation Example
Conditions: Input ON delay
Output ON delay
Cycle time
Minimum I/O response time = 1 ms + 20 ms + 0.1 ms = 21.1 ms
Maximum I/O response time = 1 ms + (20 ms × 2) + 0.1 ms = 41.1 ms
Input response times can be set in the PLC Setup. Increasing the response
time reduces the effects of chattering and noise. Decreasing the response
time allows reception of shorter input pulses, (but the pulse width must be
longer than the cycle time).
Input response time
Input
I/O refresh
CPU Unit
Name
Input constants Input response times 00 hex: 8 ms
I/O refresh
Cycle time
Instruction Instruction
execution execution
Output ON delay
1 ms (normal input with input
constant set to 0 ms)
0.1 ms (transistor output)
20 ms
Input
CPU Unit
Description Settings
10 hex: 0 ms
11 hex: 0.5 ms
12 hex: 1 ms
13 hex: 2 ms
14 hex: 4 ms
15 hex: 8 ms
16 hex: 16 ms
17 hex: 32 ms
Section 2-7
Input response time
The pulse width is
less than the input
response time, so
it is not detected.
I/O refresh
Default
00 hex (8 ms)
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