
1785-6.5.19 November 1998
Appendix
B
Performance Data
PLC-5 Ethernet Interface Module (1785-ENET)
The following tables show measured performance data for the
1785-ENET module.
PLC-to-PLC (1 active MSG instruction)
Workstation-to-PLC (Solicited Asynchronous)
Operation: Words: MSG per second: ms per MSG: Words per second:
read 1 20.2 49.5 20
read 20 19.8 50.5 396
read 100 18.8 53.2 1,880
read 1000 10.6 94.3 10,600
write 1 21.4 46.7 21
write 20 21.3 46.9 426
write 100 20.4 49.0 2,040
write 1000 11.4 87.7 11,400
Operation: Words: MSG per second: ms per MSG: Words per second:
read 1 99.3 10.1 99
read 20 96.8 10.3 1,936
read 100 90.7 11.0 9,070
read 1000 54.7 18.2 54,700
write 1 102.6 9.7 102
write 20 100.4 10.0 2,008
write 100 94.0 10.6 9,400
write 1000 49.8 20.1 49,800
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