CV500BI111 Omron, CV500BI111 Datasheet - Page 294

• Manufacturer Part Number: CV500BI111
• Description: Programmable Logic Controller
• Manufacturer: Omron

Specifications of CV500BI111

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Message Delay Times
Note The I/O response time can increase due to noise or restrictions on the number
Note This communications cycle time is calculated assuming that there is no node
Link Servicing Interval (Source and Destination Nodes)
Link service processing is the same as the PLC’s peripheral servicing and is
approximately 1 ms for Controller Link Units.
Transmission Processing
Responses:
Communications Cycle Time (with Data Links Inactive)
See 8-2 Communications Cycle Time (on page 255).
Transmission Delay Time
Transmission delay time varies with the baud rate.
Reception Processing
Responses:
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 sending 256 words of data in a system with 32 nodes. Network specifics
are detailed below:
that transmits event frames before the SEND command is issued.
Baud rate
2 Mbps
1 Mbps
500 Kbps
Link Unit servicing (source node)
Transmission processing
Communications cycle time (See note.)
Transmission delay (command)
Reception processing
Link servicing interval (destination node)
Total (max. transmission delay)
Baud rate:
Max. node number:
Number of nodes:
Number of polled nodes: 4
Number of words:
Data link:
Number of words transferred × 0.08 + 0.112 ms
Number of words transferred × 0.016 + 0.224 ms
Number of words transferred × 0.032 + 0.448 ms
Number of words transferred × 0.00125 ms + 3 ms
Number of words transferred × 0.00125 ms + 2.3 ms
2 Mbps
32
32
256
halted
Transmission delay time
PLC cycle time (source node)
0.00125 × 256 + 3 = 3.32 ≅ 3.3 ms
600 × 4 + 110 × 32 + 320 × 0 + 4 ×
0 + 2,290 = 8,210 µs ≅ 8.2 ms
0.008 × 256 + 0.112 = 2.16 ≅
2.2 ms
0.00125 × 256 + 2.3 = 2.62 ≅
2.6 ms
PLC cycle time (destination node)
PLC cycle time (source node) ×
2 + PLC cycle time (destination
node) + Peripheral servicing
time (destination node) +
16.3 ms
Section 8-4
269