Verification of Redundant CPU
Section 4 Operation
188
3BSE036351-510 A
Verification of Redundant CPU
Check, in redundant configuration, the following LED indicators on
PM861/PM864/PM865/PM866/PM891 and, if used, SM810/SM811
(see
Table 24
on page 188).
CI872
F(ault) Red LED must be OFF
OK
R(un) Green LED must be ON (steady)
OK
CI873
F(ault) Red LED must be OFF
OK
R(un) Green LED must be ON (steady)
OK
Table 24. AC 800M Controller
(PM861/PM864/PM865/PM866/PM891/SM810/SM811) – Verification of
Satisfactory System Operation in Redundant configuration
LED Indicator Status
AC 800M Controller
Status
Primary CPU
Back-up CPU
PRIM(ary) yellow ON
PRIM(ary) yellow OFF
OK
DUAL yellow ON
DUAL yellow ON
OK
Primary SM810/SM811
Back-up SM810/SM811
PRIM(ary) yellow ON
PRIM(ary) yellow OFF
OK
SYNC yellow ON
SYNC yellow ON
OK
Table 23. AC 800M Controller – Verification of Satisfactory System Operation
LED Indicator Status
AC 800M
Controller
Status
Содержание AC 800M
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