64 Rockwell Automation Publication ENET-UM004B-EN-P - November 2015
Chapter 6 Module Diagnostics
Media Counters Provides information specific to Ethernet media you are using
Alignment Errors Frames received that are not an integral number of octets in length.
FCS Errors Frames received that do not pass the FCS (Frame Check Sequence) check.
Single Collisions Successfully transmitted frames that experienced exactly one collision.
Multiple Collisions Successfully transmitted frames that experienced multiple collision.
SQE Test Errors Number of times an SQE test error message was generated.
Deferred Transmissions Frames for which the first transmission attempt is delayed because the medium is busy.
Late Collisions Number of times a collision is detected later than 512 bit-times into the transmission of a
packet.
Excessive Collisions Frames for which transmission fails due to excessive collisions.
MAC Transmit Errors Frames for which transmission fails due to an internal MAC sub layer transmit error.
MAC Receive Errors Frames for which reception on an interface fails due to an internal MAC sub layer receive
error.
Carrier Sense Times that the carrier sense condition was lost or never asserted when attempting to
transmit a frame.
Frame Too Long Frames received that exceed the maximum permitted frame size.
Reset Counters Click Reset Counter to reset the interface and media counter values to zero. The values
then update to the current counter values.
Reset Counter appears dimmed in the following conditions:
• The project is offline.
• The project is online and a communication error occurred.
Table 6 - Port Diagnostics Parameters - RSLinx
Parameter Description
To Next Page
Loading...
Need help?
General
