CV500BC031 Omron, CV500BC031 Datasheet - Page 288
CV500BC031
Manufacturer Part Number
CV500BC031
Description
Programmable Logic Controller
Manufacturer
Omron
Datasheet
1.CV500BC031.pdf
(403 pages)
Specifications of CV500BC031
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 Response Time
Note If the total number of data link words is greater than the maximum number of
Assume that the peripheral servicing interval of the PLCs at nodes #1 and #7
is 10 ms. The equation for maximum data link I/O response time is as follows:
words that can be exchanged per data exchange, the maximum data link I/O
response time will be cycle time of PLC at node #7 × 3.
Noise may increase I/O delays.
In this case, the data processing time required for data exchange and the data
transmission time are not negligible and need to be included in the calcula-
tion. Each time can be determined as follows.
Data Processing Time (see page 258.)
0.0025 × (8 + 16) × 8 + 4.7 = 5.18 ≅ 5.2 ms
Data Transmission Time
Data transmission time varies with the baud rate.
In this example, the number of data link words is (8 + 16) × 8 = 192, so the
data transmission time can be determined as follows:
0.008 × (8 + 16) × 8 = 1.536 ≅ 1.5 ms
Input ON delay
Cycle time of PLC at node #1 × 2
Peripheral servicing interval of PLC at
node #1
Communications cycle time × 3
Peripheral servicing interval of PLC at
node #7 × 2
PLC cycle time at node #7 × 2 (See note.) 20 ms × 2 (See note.)
Output ON delay
Total (data link I/O response time)
Baud rate
2 Mbps
1 Mbps
500 Kbps
Number of data link words × 0.008 ms
Number of data link words × 0.016 ms
Number of data link words × 0.032 ms
Input
Data link I/O response time
Input ON delay
◆ Program
Program ◆
Data processing time
Peripheral servicing interval
Data link transmission
Input device
1 cycle
Output
ON delay
Data transmission time
Data processing time
1.5 ms
15 ms × 2
10 ms
9.9 ms × 3
10 ms × 2
15 ms
146.2 ms
Output device
Peripheral servicing interval
PLC at node #1
PLC at node #7
I/O refresh
Section 8-3
263
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