Rockwell Automation 1770, D17706.5.16 Ref Mnl DF1 Protocol Command - Manual (Page 171)

9–33 Diagnostic Counters
Publication 1770Ć6.5.16 - October 1996
Cat. Nos. Link Pages
5250ĆLP1, ĆLP2, ĆLP3, ĆLP4 À processors DH+ 9-33
À PLCĆ5/250 processors
5250ĆLP1, ĆLP2, ĆLP3, ĆLP4 DH+ Diagnostic Counters
This counter byte Counts the number of
0, 1
Messages sent successfully.
2, 3 Messages received successfully (not counting duplicate messages).
4 Undeliverable messages (message was NAKed or retries were used
up).
5 Response timeouts.
6 NAKs received.
7 Message retries as a result of CRC error, illegal length, DST not
equal to this node, SRC not equal to node that message was sent to,
or timeout.
8 NAKs sent due to memory available.
9 NAKs sent due to message's undefined LSAP.
10 Duplicate messages received.
11 Token pass retries.
12 Packets received that were aborted early.
13 Packets received that had a CRC error.
14 Packets received that had an illegal size (greater than 271 bytes or
less than 3 bytes).
15 Duplicate tokens detected.
16 Recoveries from duplicate node condition.
17 Link dead timeouts.
5250 Cat. Nos.