C40K-CDR-A Omron, C40K-CDR-A Datasheet - Page 157
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C40K-CDR-A
Manufacturer Part Number
C40K-CDR-A
Description
PROGRAMMABLE CONTROLLER CPU
Manufacturer
Omron
Datasheet
1.C28P-EDR-A.pdf
(225 pages)
Specifications of C40K-CDR-A
Leaded Process Compatible
No
Peak Reflow Compatible (260 C)
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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I/O Response Time
146
Maximum I/O Response
Time
Calculation Example
Overseeing
Output
signal
Input
Cycle
signal
Input ON delay
The PC takes longest to respond when it receives the input signal just after
the input refresh phase of the cycle. In this case the CPU does not recognize
the input signal until the end of the next cycle. The maximum response time
is thus one cycle longer than the minimum I/O response time, except that the
input refresh time would not need to be added in because the input comes
just after it rather than before it.
I/O refresh
Maximum I/O response time = input ON delay + (cycle time x 2) + overseeing
time + output ON delay
The data in the following table would produce the minimum and maximum
cycle times shown calculated below.
Minimum I/O response time = 1.5 + 20 + 0.23 + 3.0 +15 = 39.73 ms
Maximum I/O response time = 1.5 + (20 x 2) + 3.0 +15 = 59.5 ms
Input ON-delay
Cycle time
Input refresh time
Overseeing time
Output ON-delay
Cycle time
CPU reads
input signal
I/O response time
1.5 ms
20 ms
0.23 ms
3.0 ms
15 ms
Cycle time
output signal
CPU writes
Output ON delay
Section 6-5
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