2 Equipment Description
2.27 EUCN Cable System
152
HPM High-Performance Process Manager Service
R688
Honeywell
December 2020
Table 18 UCN Node (PM/APM/HPM) Cable Faults (Primary NIM node is an ENB)
Error scenario
UCN COMM STATUS
UCN CABLE
STATUS/FTE
CABLE STATUS
$FTESTS2
displays
(PM/APM/HPM
with cable faults)
$FTESTS2
displays
(all other
EUCN nodes)
No UCN coaxial
cable problems
A
SIL
B
SIL
A
NSY
B
NSY
OK/OK
UCN: OK/BACKUP
LCN: OK/BACKUP
N/A
N/A
If UCN cable A
on a
PM/APM/HPM
node has a
problem
A
SIL
B
SIL
A
NSY
B
NSY
FAIL/OK
UCN: OK/BACKUP
LCN: OK/BACKUP
N/A
N/A
*
If UCN cable B
on a
PM/APM/HPM
node has a
problem
A
SIL
B
SIL
A
NSY
B
NSY
FAIL/OK
UCN: OK/BACKUP
LCN: OK/BACKUP
N/A
N/A
*
If both UCN cable
A and B on a
PM/APM/HPM
node have a
problem
Primary fails,
Secondary takes
over as the
primary
A
SIL
B
SIL
A
NSY
B
NSY
OK/OK
UCN:
PARTFAIL/OFFNET
LCN: OK/BACKUP
N/A
N/A
*
[1]
*
[1]
Note:
PM/APM/HPM are UCN nodes and hence the $FTESTS displays are not applicable.
[1]
Note:
The A SIL, B SIL, A NSY, and B NSY indications only appear for an instant and then shows
blank due to node failure.
Note:
If any SIL or NSY bits are set, then the corresponding cables are backlit on the UCN Status
Display, if the UCN CABLE STATUS target is chosen.
Содержание HPM
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Страница 396: ...5 UCN Exerciser 5 5 Test Operation 396 HPM High Performance Process Manager Service R688 Honeywell December 2020 ...
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