Communications Performance And Communications Load - Omron NX Series User Manual

Communications Performance
and Communications Load
NX-series EtherNet/IP Unit User's Manual (W627)
12-1 Communications System ............................................................................ 12-2
12-1-1 Tag Data Link Communications Method........................................................ 12-2
12-1-2 Calculating the Number of Connections........................................................ 12-5
12-1-3 Packet Interval (RPI) Accuracy ..................................................................... 12-6
12-2 Adjusting the Communications Load......................................................... 12-7
12-2-1 Checking Bandwidth Usage for Tag Data Links ............................................ 12-8
12-2-2 Tag Data Link Bandwidth Usage and RPI ..................................................... 12-9
12-2-3 Adjusting Device Bandwidth Usage ............................................................ 12-10
12-2-4 Changing the RPI .........................................................................................12-11
12-2-5 RPI Setting Examples ................................................................................. 12-16
12-3 Tag Data Link I/O Response Time............................................................. 12-23
12-3-1 Timing of Data Transmissions ..................................................................... 12-23
12-3-2 Maximum Tag Data Link I/O Response Time .............................................. 12-23
12-4 Message Service Transmission Delay ..................................................... 12-27
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12-1