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Omron CJ1W-EIP21 - Packet Interval (RPI) Accuracy

Omron CJ1W-EIP21
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12-5
12 Communications Performance and Communications Load
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
12-1 Communications System
12
12-1-3 Packet Interval (RPI) Accuracy
The send processing delay occurs in the EtherNet/IP Unit when data packets are sent once each
packet interval (RPI). This delay varies with the RPI error shown in the following graph, so the send
processing delay time is the maximum value for each RPI.
12-1-3 Packet Interval (RPI) Accuracy
Packet interval (RPI) RPI error (±) (%)
0.5 to 1,000 ms 15 (RPI [ms]/100)
1,000 to 10,000 ms 5% of the RPI
0
2
4
6
8
10
12
14
16
RPI [ms]
RPI error (±) (%)
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000

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