CNB port diagnostics — counters

Diagnostic Counter
Description
Transmitted Good
Number of frames successfully sent from this node.
Received Good
Number of frames successfully received by this node.
Received Bad
Number of frames received by this node that are not good.
Total Received
Total number of frames received - both good and bad.
Transmitted Aborted
Transmission of a complete packet was aborted because the module couldn't supply data to the wire fast enough.
Received Aborted
Reception of a complete packet from the wire was aborted.
Update Time Overload
Number of times NUT (network update time) times out.
Blockage
Number of times that the message to transmit is larger than the time allowed for transmitting.
Channel A Errors
Number of frames received on channel A that were unusable independent of the active channel - channel selected for reception.
Channel B Errors
Number of frames received on channel B that were unusable independent of the active channel - channel selected for reception.
Noise Detected
Number of times that a start of frame condition could not be detected.
Mismatch Events
Number of times a moderator frame was received with network parameters different from those in the receiving node.
Unheard Moderator
Number of times a node transmits while another node is already transmitting, causing a collision.
Non-Concurrence
Number of times host node has inaccurate count of messages being transmitted and received.
Lonely Counter
Number of times node times out while waiting to hear from the moderator.
Collisions
Number of times a node tries to transmit but cannot because another node is already transmitting.
Commands Received
Number of commands received.
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