CV500BC101 Omron, CV500BC101 Datasheet - Page 296
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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Message Delay Times
Note This communications cycle time is calculated assuming that there is no node
Reception Processing
Commands: 2.3 ms
Responses: Number of words transferred × 0.00125 ms + 2.3 ms
The I/O response time might increase due to noise or restrictions on the num-
ber of frames that can be transmitted while the data link is operating.
Example
In this example, the maximum transmission delay is calculated for an instruc-
tion receiving 256 words of data in a system with 32 nodes. Network specifics
are detailed below:
that transmits event frames before the SEND command is executed.
Link Unit servicing (source node) × 2
Transmission processing (command)
Communications cycle time × 2 (See note.)
Transmission delay (command)
Reception processing (command)
Link Unit servicing (destination node)
Transmission processing (response)
Transmission delay (response)
Reception processing (response)
Total (max. transmission delay)
Baud rate:
Max. node number:
Number of nodes:
Number of polled nodes: 4
Number of words:
Data links:
2 Mbps
32
32
256
Halted
PLC cycle time (source node) × 2
3 ms
(600 × 4 + 110 × 32 + 320 × 0 + 4 ×
0 + 2,290) × 2 = 8,210 µs × 2 ≅
16.4 ms
0.112 ≅ 0.1 ms
2.3 ms
PLC cycle time (destination node)
0.00125 × 256 + 3 = 3.32 ≅ 3.3
0.008 × 256 + 0.112 = 2.16 ≅ 2.2
0.00125 × 256 + 2.3 = 2.62 ≅ 2.6
PLC cycle time (source node) ×
2 + PLC cycle time (destination
node) + Peripheral servicing
time (destination node) +
29.9 ms
Section 8-4
271
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