Rockwell Automation 1770, D17706.5.16 Ref Mnl DF1 Protocol Command - Manual (Page 168)

9–30 Diagnostic Counters
Publication 1770Ć6.5.16 - October 1996
1785ĆKA5 DH485 Diagnostic Counters
This counter byte Counts the number of
0, 1
Total packets received (low byte first).
2, 3 Total messages sent (low byte first).
4 Messages ACK, timeout count.
5 Message retried, failure count.
6 NAK NO MEM sent.
7 NAK NO MEM received.
8 Bad messages received.
9 Reserved.
1785ĆL11B, ĆL20B, ĆL30B, ĆL40B, ĆL60B, and ĆL80B DH+ Channel
Diagnostic Counters
This counter byte Counts the number of
0, 1
Messages received.
2, 3 Messages sent.
4, 5 Messages received with errors.
6, 7 Messages sent with errors.
8, 9 Messages unable to receive.
10, 11 Times the network died.
12, 13 Claims won.
14, 15 Claims lost.
16, 17 New successors.
18, 19 Tokens retried.
20, 21 Tokens failed.
22, 23 Times linear scan started.
24, 25 Times linear scan failed.
26, 27 Duplicate nodes.
28, 29 Dropped tokens.
30, 31 Received SDAs.
32, 33 Received bad packets.
34, 35 Received SDA retransmissions.
36, 37 Received SDAs, but full.
38, 39 Received SDAs, SAP off.
40, 41 Transmitted SDA confirms.
42, 43 Transmitted SDA NAKs, miscellaneous.
44, 45 Transmitted SDA timeouts.
46, 47 Transmitted SDA but not ACKed.
48, 49 Transmitted SDX retries.
50, 51 Transmitted SDA failed.
52, 53 Transmitted SDA NAKed (full).
54, 55 Transmitted SDA NAKed, inactive SAP.
56, 57 Transmitted SDN confirmed.
58, 59 Transmitted SDN failed.
60, 61 Solicited rotations.
62, 63 SDNs received.