User manual

140 Publication ENET-UM001I-EN-P - January 2010
Chapter 10 Monitor Diagnostics
Rejected Number of Class 1 UDP packets the module rejected in the last one-second snapshot.
These packets were messages received and then rejected because the connection was closed or
there was a duplicate multicast address.
Capacity
Number of Class 1 UDP pac
kets the module can handle over the Ethernet network at an
y time.
Actual Reserve Actual Reserve = Capacity - Total.
This is based on the total of number packets the m
odule has transmitted/received in the last
one-second snapshot.
Theoretical Reserve Theoretical Reserve = Capacity - the sum of the theoretical packet/second of all connections based
on the RPI.
I/O Packet Counter Statistics
Total Cumulative number of Class 1 UDP packets the module transmitted/received.
The Total is the sum of the Sent, Received, Inhibited, and Rejected numbers.
Sent
Cumulative number of Class 1 UDP packets the module transmitted.
Received Cumulative number of Class 1 UDP packets the module received.
Inhibited Cumulative number of Class 1 UDP packets the module inhibited.
Packets are inhibited if a COS module produces packets faster than 1/4 of the c
onnection’
s RPI.
Rejected Cumulative number of Class 1 UDP packets the module rejected.
These packets were messages received and then rejected because the connection was closed or
there was a duplicate multicast address.
Missed Cumulative number packets that were
not received in order.
Each UDP packet has a sequence number and if a packet is missing (corrupted or dropped), the
modu
le will recognize this void upon receipt of the next packet received.
Diagnostic Overview Web Page
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ld Specifies