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Description of Operation Section 3-2
3-2-2 Reference: Operations at Power ON
Conditions A42410
(RAM
Error
Flag)
A42411
(Inner
Board
Fatal
Error
Flag)
System
Common
Block
ITEM018
(START
mode at
Power ON)
Start method Transfer processing A35807
(Automatic
Cold Start
Execution
Flag)
RAM Flash
memory
Normal Normal OFF OFF 1
(Hot start
setting)
Hot start None OFF
2
(Cold start
setting)
Cold start Transfers (recovers) flash
memory data to RAM and
transfers the reception
data and send/receive
data for the HMI to RAM.
OFF
Error
(Including
data loss due
to discharged
backup
capacitor)
Normal ON OFF 1 or 2 (Set-
ting is irrele-
vant.)
Automatic Cold
start
Transfers (recovers) flash
memory data to RAM and
transfers the reception
data and send/receive
data for the HMI to RAM.
ON
10 ms 25 ms(10 + T) ms (25 + T) ms
Power interruption
starts
Time
Power interruption detec-
tion extension time T ms
Power interruption time where operation definitely
continues: Less than (10+T) ms
Power interruption time where operation may or may
not continue: Between (10+T) ms and (25+T) ms
Power interruption detec-
tion extension time T ms
Operation may or may not continue if
power restored in this time range.
Power interruption time where operation definitely stops: (25+T) ms or more
Power interruption detec-
tion extension time
E.g., 10 ms
Power interruption time
10+ power interruption detection extension
time of less than 10 ms
Operation
continues.
Power interruption detec-
tion extension time
E.g., 10 ms
Operation may or may not continue if
power restored in this time range.
Operation may or
may not continue.
Power interruption time
between (10+ power interruption detection extension time 10) ms
and (25 + power interruption detection extension time 10) ms
Power interruption
35 ms or more (25 + power interruption detection extension time 10 ms or more)
Operation stops.
* For AC power supplies
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