Omron NX102-12 Series

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Communications Performance
and Communications Load
15-1 Communications System ............................................................................ 15-2
15-1-1
Tag Data Link Communications Method ....................................................... 15-2
15-1-2 Calculating the Number of Connections ....................................................... 15-4
15-1-3 Packet Interval (RPI) Accuracy..................................................................... 15-5
15-2 Adjusting the Communications Load......................................................... 15-7
15-2-1 Checking Bandwidth Usage for Tag Data Links............................................ 15-8
15-2-2 Tag Data Link Bandwidth Usage and RPI..................................................... 15-9
15-2-3 Adjusting Device Bandwidth Usage............................................................ 15-10
15-2-4 Changing the RPI ........................................................................................15-11
15-2-5 RPI Setting Examples................................................................................. 15-16
15-3 I/O Response Time in Tag Data Links ...................................................... 15-22
15-3-1 Timing of Data Transmissions..................................................................... 15-22
15-3-2 Built-in EtherNet/IP Port Data Processing Time ......................................... 15-23
15-3-3 Relationship between Task Periods and Packet Intervals (RPIs) ............... 15-25
15-3-4 Maximum Tag Data Link I/O Response Time ............................................. 15-26
15-4 Message Service Transmission Delay ..................................................... 15-29
15-1
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
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