Rockwell Automation 1770, D17706.5.16 Ref Mnl DF1 Protocol Command - Manual (Page 165)

9–27 Diagnostic Counters
Publication 1770Ć6.5.16 - October 1996
1785ĆKA DH+ Diagnostic Counters
This counter byte Counts the number of
0 Times received ACKs with a bad CRC.
1 Timeouts expired with no ACK received.
2 Transmit reĆtries exhausted.
3 NAK/illegal protocol operations received.
4 NAK/bad LSAP received.
5 NAK/no memory received.
6 Received ACKs/NAKs too short.
7 Received ACKs/NAKs too long.
8 Times something other than an ACK/NAK received.
9 Duplicate tokens found.
10 Duplicate nodes found.
11 Token pass timeouts.
12 Token pass reĆtries exhausted.
13 Claim token sequences entered.
14 Tokens claimed.
15 Bad CRC in received frames.
16 NAKs - illegal protocol operations sent.
17 NAKs - bad LSAP sent.
18 NAKs - no memory sent.
19 Received frames that were too small.
20 Received frames that were too long.
21 Frame reĆtransmissions received.
22 Received frames aborted (line noise).
23, 24 Messages successfully sent (low byte first).
25, 26 Messages successfully received (low byte first).
27, 28 Commands successfully sent (low byte first).
29, 30 Replies successfully received (low byte first).
31, 32 Commands successfully received (low byte first).
33, 34 Replies successfully sent (low byte first).
35 Replies that could not be sent.
36 Active nodes.