Rockwell Automation 1785-Lxxx Enhanced and Ethernet PLC-5 Programmable Controllers - Manual (Page 209)

Publication 1785-UM012D-EN-P - July 2005
Communicating with Devices on an Ethernet Network 11-35
Monitoring general Ethernet status
Status Field Bytes Displays the Number of
In Octets 28-31 Octets received on the channel
Out Octets 32-35 Octets sent on the channel
In Packets 36-39 Packets received on the channel, including broadcast packets
Out Packets 40-43 Packets sent on the channel, including broadcast packets
Excessive collisions 56-59 Frames for which a transmission fails due to excessive collisions
Excessive deferrals 60-63 Frames for which transmission is deferred for an excessive period of time
Alignment errors 44-47 Frames received on the channel that are not an integral number of octets in length
FCS errors 48-51 Frames received on the channel that do not pass the FCS check
MAC receive errors 64-67 Frames for which reception on an interface fails due to internal MAC sublayer receive error
MAC transmit errors 68-71 Frames for which reception on an interface fails due to internal MAC sublayer transmit error
Single collisions 72-75 Successfully transmitted frames for which transmission was delayed because of collision.
Multiple collisions 76-79 Successfully transmitted frames for which transmission was delayed more than once because of
collision.
Deferred transmission 80-83 Frames for which the first transmission attempt is delayed because the medium is busy
Late collisions 84-87 Times that a collision is detected later than 512 bit-times into the transmission of a packet
Multiple collisions 88-89 Network storms encountered
Ethernet Address 90-95 Ethernet Hardware Address
IP Address 96-99 Assigned Internet Protocol Address
Carrier sense errors 52-55 Times that the carrier sense condition was lost or never asserted while trying to transmit a frame