Rockwell Automation 1770, D17706.5.16 Ref Mnl DF1 Protocol Command - Manual (Page 149)

9–11 Diagnostic Counters
Publication 1770Ć6.5.16 - October 1996
1770ĆKF2 and 1785ĆKE DH+ and Asynchronous Link Diagnostic
Counters
This counter byte Counts the number of
0
Times received ACK with bad CRC.
1 Times timeout expired with no ACK received.
2 Transmit reĆtries exhausted.
3 NAK/illegal protocol operation received.
4 NAK/bad LSAP received.
5 NAK/no memory received.
6 Received ACK/NAK too short.
7 Received ACK/NAK too long
8 Something other than an ACK/NAK received.
9 Token pass timeouts.
10 Token pass reĆtries exhausted.
11 Claim token sequence entered.
12 Tokens claimed.
13 Bad CRCs in received frame.
14 NAK/illegal protocol operations sent.
15 NAK/bad LSAPs sent.
16 NAK/no memory sent.
17 Received frame too small.
18 Received frame too long.
19 Received a reĆtransmission of a frame.
20 Received frame aborted (line noise).
21, 22 Messages successfully sent (low byte first).
23, 24 Messages successfully received (low byte first).
25, 26 Commands successfully sent (low byte first).
27, 28 Replies successfully received (low byte first).
29, 30 Commands successfully received (low byte first).
31, 32 Replies successfully sent (low byte first).
33 Replies could not be sent.
34 Active nodes.