Chapter 3 Redundant Function Module - Mitsubishi Electric MELSEC iQ-R Series User Manual

3
REDUNDANT FUNCTION MODULE
This chapter describes the part names of the redundant function module.
(1)
(3)
(4)
(14)
No. Name
(1) RUN LED
(2) ERR LED
(3) SYS A LED
(4) SYS B LED
(5) CTRL LED
(6) SBY LED
(7) BACKUP LED
(8) SEPARATE LED
(9) MEMORY COPY LED
(2)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
Description
Indicates the operating status.
On: Normal operation
Flashing: Changing module online or executing a module communication test
Off: Error ( Page 537 When the RUN LED turns off)
Indicates the error status of the module.
On: Error or module communication test completed with an error ( Page 537 When the ERR LED turns on
or flashes)
Flashing: Error ( Page 537 When the ERR LED turns on or flashes)
Off: Normal operation
Indicates the system A/B setting.
On: System A
Flashing: Parameter (set to system A) invalid
Off: System B or not set
Indicates the system A/B setting.
On: System B
Flashing: Parameter (set to system B) invalid
Off: System A or not set
Indicates the control status of the CPU module.
Flashing: Control system
Off: Standby system or not determined
Indicates the control status of the CPU module.
On: Standby system
Off: Control system or not determined
Indicates the operation mode.
On: Backup mode
Flashing: Cause of system switching failure being present
Off: Separate mode
Indicates the operation mode.
On: Separate mode
Flashing: Cause of system switching failure being present
Off: Backup mode
Indicates the memory copy status.
On: Memory copy completed (standby system)
Flashing (every 200ms): Memory copy being executed
Flashing (every 1s): Memory copy error (standby system)
Off: Memory copy not executed, or memory copy completed (control system)
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