Rockwell Automation 1785-ENET PLC-5 Ethernet Interface Module Installation Instructions - 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