CV500BC101 Omron, CV500BC101 Datasheet - Page 286
CV500BC101
Manufacturer Part Number
CV500BC101
Description
Programmable Logic Controller
Manufacturer
Omron
Datasheet
1.CV500BC031.pdf
(403 pages)
Specifications of CV500BC101
Peak Reflow Compatible (260 C)
No
Leaded Process Compatible
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Data Link I/O Response Time
Minimum Data Link I/O Response Time
Note Noise may increase I/O delays.
Input
Input ON response time
Program
12,000 to 15,600 (approx.) words: × 3
15,600 (approx.) to 20,000 words: × 4
If there is a node with more than 3,850 send words, however, the factors
become × 5 and × 6.
Noise may increase I/O delays.
The minimum data link I/O response time (i.e., the time that will not delay any
processing) can be calculated as follows:
Both the input ON response time and output ON response time are consid-
ered negligible (0), but the data processing time required for data exchange
and the time required for the data transmission itself cannot be ignored, so
they are included in the total. The respective values are as follows:
Cycle time of PLC at node #1
Data processing time
Data link transmission time
Data processing time
PLC cycle time at node #7
Total (data link I/O response time)
Data link I/O response time
Data processing time:
0.001 × (8 + 16) + 0.1 = 0.124 ≅ 0.1 ms
Data Link transmission time:
The following formula is derived from the transmission speed (2 Mbits/s).
0.008 × Number of data link words (ms)
In this case, this gives the following result.
0.008 × (8 + 16) = 0.19 ≅ 0.2 ms
1 cycle
Input device
Output ON response time
Data processing time
Data link transmission time
Program
Data processing time
PLC at node #1
1 cycle
Output
Output device
I/O refresh
Data exchange
PLC at node #7
25 ms
1.9 ms
0.2 ms
0.1 ms
10 ms
37.2 ms
Section 8-3
261
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