
9–3Diagnostic Counters
Publication
17706.5.16 - October 1996
Cat. Nos. Link Pages
1747KE DH485 9-3
1747L20, L30, L40, L511, L514, L524, L532
À
DH485 9-3
Á
DH+ 9-4
1747L541, L542, L542
DH485 9-5
1747L541, L542, L542
Á
DF1 9-6
À
SLC
500, 5/01, and 5/02 processors
Á
SLC 5/03 and 5/04 processors
1747KE DH485 Diagnostic Counters
This counter byte Counts the number of
0 Total message packets received, low byte
1 Total message packets received, high byte
2 Total message packets sent, low byte
3 Total message packets sent, high byte
4 Message packet retries
5 Retry limit exceeded (nondelivery)
6 NAK, no memory sent
7 NAK, no memory received
8 Total bad message packets received
9 Reserved
1747L20, L30, L40, L511, L514, L524, (SLC 500, 5/01, and 5/02
processors), 1747PA2x (SLC APS COM1), 1770KF3, and
1784KR DH485 Diagnostic Counters
This counter byte Counts the number of
0 Total message packets received, low byte
1 Total message packets received, high byte
2 Total message packets sent, low byte
3 Total message packets sent, high byte
4 Message packet retries
5 Retry limit exceeded
6 NAK, no memory sent
7 NAK, no memory received
8 Total bad message packets received
9 Bad messages due to illegal type
1747 Cat. Nos.
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