
Using the Ethernet Port
870USE10110 July 2004 161
Receiver Errors Receiver errors table:
Words Description
Words 18, 19
Framing
Errors
Counts the number of received frames addressed to this node that are
greater than 320 bytes in length. Any such large frame has no relevance to
the M1 Ethernet adapter and therefore is skipped.
This error should not occur.
Overflow
Errors
Increments whenever a received frame cannot be copied into the frame
buffer, because the frame buffer is full. This situation should never occur
under legal Ethernet traffic.
Words 20, 21
CRC Errors
Increments when the received packet is received under any of the following
error conditions:
CRC error
extra data error
runtime error
This counter can be made to increment by continuously disconnecting and
reconnecting the M1 Ethernet cable during cyclic communication.
Words 24, 25
Receive
Buffer Errors
Increments whenever a client attempts to connect to the M1 Ethernet, and
fails, because there is no available server path. The M1 Ethernet supports 14
simultaneous data paths and 2 program paths before this counter can
increment. This error indicates poor application architecture.
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