C40K-CDR-A Omron, C40K-CDR-A Datasheet - Page 156
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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
6-5
Minimum I/O Response
Time
84
91
92
93
97
Function
code
I/O Response Time
SFTR
SBS
SBN
RET
IORF
Instruction
The I/O response time is the time it takes for the PC to output a control signal
after it has received an input signal. How long it takes to respond depends on
the cycle time and when the CPU receives the input signal relative to the in-
put refresh period. The I/O response times for a PC not in a Link System are
discussed below. For response times for PCs with Link Systems, refer to the
relevant System Manual .
The minimum and maximum I/O response time calculations described below
are for the following, where 0000 is the input bit that receives the signal and
0200 is the output bit corresponding to the desired output point.
The PC responds most quickly when it receives an input signal just prior to
the input refresh period in the cycle. Once the input bit corresponding to the
signal has been turned ON, the program will have to be executed once to
turn ON the output bit for the desired output signal and then the input refresh
and overseeing operations would have to be repeated before the output from
the output bit was refreshed. The I/O response time in this case is thus found
by adding the input ON-delay time, the cycle time, the I/O refresh time, the
overseeing time, and the output ON-delay time. This situation is illustrated
below.
Minimum I/O response time = Input ON delay + Cycle time + I/O refresh time
+ Overseeing time + Output ON delay
136 to 668
44
42
75
26
49
108
Output
CPU reads
signal
Execution
input signal
Input
signal
Cycle
time( s)
Input ON delay
When resetting 1 to 64 DM words
NOP
IL
Always
Always
Always
When refreshing 1 word
I/O refresh
0000
I/O response time
Cycle time
output signal
CPU writes
Conditions
Cycle time
Output ON delay
Overseeing
0200
Section 6-5
145
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