Rockwell Automation 1785-ENET PLC-5 Ethernet Interface Module Installation Instructions User Manual
Page 33

PLC-5 Ethernet Interface Module 33
Publication 1785-IN019B-EN-P - January 2007
This page displays general messaging statistics. Use the information on this page
when troubleshooting the network.
Details of each counter on the General Ethernet Counters page are described in the
following table:
5. Select Diagnostic Information at the bottom of the General Ethernet Counters dialog
to return to that dialog.
This Counter
Totals
Commands Sent
Number of PCCC (programmable controller communication commands) sent by the
module
Replies Sent
Number of PCCC replies sent by the module
Command Received
Number of PCCC commands received by the module
Replies Received
Number of PCCC replies received by the module
Replies Sent with Error
Number of PCCC replies with error status send by the module
Replies Received with
Error
Number of PCCC replies with error status received by the module
Replies Timed Out
Number of PCCC replies that were not received within the time period specified
on the Ethernet Configuration page
In Octets
Number of octets received by the module
Out Octets
Number of octets sent by the module
In Packets
Number of packets received by the module, including broadcast packets
Out Packets
Number of packets send by the module, including broadcast packets
Alignment Errors
Count of frames received that are not an integral number of octets in length
FCS Errors
Count of frames that do not pass the FCS check
Carrier Sense Errors
Number of times that the carrier sense condition was lost or never asserted when
attempting to transmit a frame
Excessive Collisions
Count of frames when transmission fails caused by excessive collisions
Excessive Deferrals
Count of frames when transmission is deferred for an excessive period of time
MAC Receive Errors
Count of frames when transmission fails because of an internal MAC sublayer
receive error
MAC Transmit Errors
Count of frames when transmission fails because of internal MAC sublayer
transmit error
Single Collisions
Count of successfully transmitted frames when transmission is inhibited by one
collision
Multiple Collisions
Ccount of successfully transmitted frames when transmission is inhibited by more
than one collision
Deferred Transmissions
Count of frames when the first transmission attempt is delayed because the
medium is busy
Late Collisions
Number of times that a collision is detected later than 512 bit-times into the
transmission of a packet
Packet Storms
Number of times the SONIC driver has entered storm or throttle back operation
due to excessive traffic