Rockwell-automation Ethernet Design Considerations Reference Manual Bedienungsanleitung PDF herunterladen (Seite 96)

96 Rockwell Automation Publication ENET-RM002C-EN-P - May 2013

Chapter 5 Predict System Performance

For example, use the worksheet in Appendix A for each of the five EtherNet/IP

modules as follows.

The total pps of 220 is well within the 1756-EN2T/A module’s, firmware

revision 2.003, remaining bandwidth of 9000 pps.

EtherNet/IP Modules 2 and 3 with Consumed Tags

EtherNet/IP modules 2 and 3 interface two consumer controllers to the network.

EtherNet/IP Module ID: 4 - 8

Rack-optimized Connections 1 @ 20 ms

= (2 x connections)/RPI

= (2 x 1)/ 20 ms = 100

Direct Connections 3 @ 50 ms

= (2 x connections)/RPI

= (2 x 3)/ 50 ms = 120

Produced Tag Connections 0

= (1 + connections)/RPI

for each produced tag

= N/A

Consumed Tags 0

= 2/RPI for each consumed tag

= N/A

Total Packets Per Second 220

1756-EN2T Module 2 1756-EN2T Module 3

1 2 ... 91 92 93 94 95 96 97 98 99 100 101 ... 105 106

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Rockwell-automation Ethernet Design Considerations Reference Manual Bedienungsanleitung Seite 96