Omron CJ1W-FLN22, Operation Manual, Page: 87 / 277

61
Allocated Words in the DM Area Section 4-4
4-4-9 Total Number of Receive Errors (FL-net Unit to CPU Unit)
The total number of errors ($0 to $FFFFFFFF), including overflow errors, CRC
errors, alignment errors, and short packet errors, that occur during packet
reception is stored. This error may occur due to the network configuration.
If this error occurs frequently, either extend the minimum allowable frame
interval using the CX-FLnet or FL-net Unit Support Software or reduce the
number of Units using cascade connections from the hub.
Note When the baud rate is set to 100 Mbps, adjust the minimum allowable frame
interval. The set value depends on the number of nodes, number of data link
words, and hub performance capacity. The following table provides a guide for
set values.
The minimum allowable frame interval is set in the Unit area settings from the
FL-net Unit Support Software. If the minimum allowable frame interval is too
short, the total number of receive errors will be incremented.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
m+78
m+79
Total number of receive errors H ($0000 to $FFFF)
Total number of receive errors L ($0000 to $FFFF)
Total data link words Minimum allowable frame
interval
0 to 2,000 words 0.8 ms
2,000 to 4,000 words 1.0 ms
4,000 to 6,000 words 1.2 ms
6,000 to 8,000 words 1.5 ms