3 REDUNDANT FUNCTION MODULE
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3
3 REDUNDANT FUNCTION MODULE
This chapter describes the part names of the redundant function module.
No. Name Description
(1) RUN LED 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)
(2) ERR LED 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
(3) SYS A LED Indicates the system A/B setting.
On: System A
Flashing: Parameter (set to system A) invalid
Off: System B or not set
(4) SYS B LED Indicates the system A/B setting.
On: System B
Flashing: Parameter (set to system B) invalid
Off: System A or not set
(5) CTRL LED Indicates the control status of the CPU module.
Flashing: Control system
Off: Standby system or not determined
(6) SBY LED Indicates the control status of the CPU module.
On: Standby system
Off: Control system or not determined
(7) BACKUP LED Indicates the operation mode.
On: Backup mode
Flashing: Cause of system switching failure being present
*1
Off: Separate mode
(8) SEPARATE LED Indicates the operation mode.
On: Separate mode
Flashing: Cause of system switching failure being present
*1
Off: Backup mode
(9) MEMORY COPY LED 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)
(2)(1)
(3)
(4) (6)
(7)
(9)
(8)
(10)
(5)
(11)
(12)
(13)
(14)
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