Mitsubishi Q12PRHCPU - Page 146

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5.4 Operation Mode Change Function
5
REDUNDANT SYSTEM FUNCTIONS
(2) Operations When Changing Operation Mode
The CPU module operations after operation mode change and the input/output
processing to the remote station are shown in Table5.41.
Refer to Table5.41 for operations during operation in the corresponding operation
mode.
Table5.41 Operations When Changing Operation Mode
Function
From Backup Mode to Separate Mode
Control system Standby system
Program
execution
Operation
Operation status: RUN Continues execution.
Stops.
(Starts operation when the RUN/STOP switch is
operated from RUN to STOP to RUN.)
Operation status: STOP, PAUSE, stop error Stops (continues). Stops (continues).
Program execution type Takes over the current setting. Takes over the current setting.
EI/DI setting Takes over the current setting. Takes over the current setting.
IMASK setting Takes over the current setting. Takes over the current setting.
DUTY setting Takes over the current setting. Takes over the current setting.
File register setting Takes over the current setting. Takes over the current setting.
Instruction executed over several scans (dedicated
instruction)
Continues the instruction
execution.
- (since operation was not executed before operation
mode change.)
Device memory (including special relays and special registers) Takes over the current status. Takes over the current status.
Signal flow
With tracking setting Takes over the current status. Takes over the current status.
Without tracking setting Takes over the current status. Clears.
LED
"RUN"
Operation status: RUN Turns on (continues).
Turns off and then flashing.
(Turns on when the RUN/STOP switch is operated
from RUN to STOP to RUN.)
Operation status: STOP, PAUSE, stop error Turns off (continues). Turns off (continues).
"BACKUP"
ON (green) and then ON
(orange).
ON (green) and then ON (orange).
Other than "RUN" and "BACKUP" Takes over the current status. Takes over the current status.
I/O
I/O from/to main base unit
Input Continues execution. Continues execution.
Output Continues execution. Starts output.
I/O from/to extension base
unit
Input Continues execution. Does not execute input.
Output Continues execution. Does not execute output.
CC-Link IE Controller
Network
Link to CPU Continues execution. Continues execution.
CPU to link Continues execution.
Does not execute refresh.
(No change from before operation mode change)
MELSECNET/H PLC to
PLC network
Link to CPU Continues execution. Continues execution.
CPU to link Continues execution.
Does not execute refresh.
(No change from before operation mode change)
MELSECNET/H remote
I/O network
Link to CPU Continues execution. Continues execution.
CPU to link Continues execution.
Does not execute refresh.
(No change from before operation mode change)
Auto refresh to network
module on main base unit
Intelligent module to CPU Continues execution. Continues execution.
CPU to intelligent module Continues execution. Continues execution.
Auto refresh of network
module on extension base
unit
Intelligent module to CPU Continues execution. Does not execute auto refresh.
CPU to intelligent module Continues execution. Does not execute auto refresh.
SB/SW refresh (CC-Link
IE Controller Network,
MELSECNET/H, CC-Link)
Link to CPU Continues execution. Continues execution.
CPU to link Continues execution.
Does not execute refresh.
(No change from before operation mode change)