C Controller Module Run Led Is Kept Flashing; C Controller Module U Rdy Led Is Not Lit; Output Module Led Is Not Lit - Mitsubishi Electric MELSEC Q Series User Manual

23.1.6

C Controller module RUN LED is kept flashing

RUN LED flashing status indicates that the script file (STARTUP.CMD) is running.
After applicable "Corrective action" described in the "Check item" below is taken, correct the script file and the user
program that is started up from the script file.
The script file is stored in the standard ROM.
The standard ROM script file cannot be overwritten.
23.1.7

C Controller module U RDY LED is not lit

Check the following items.
U RDY LED is kept lit.
23.1.8

Output module LED is not lit

Check the following items.
C Controller module RUN LED is off.
The target device (Y) is not ON in [Online]  [Device monitor]
in Setting/monitoring tools for the C Controller module.
The target output module's LED is not turned ON when the
target device (Y) is turned ON from [Online]  [Device
monitor] in Setting/monitoring tools for the C Controller
module, with the C Controller module in the STOP status.
The target output module's LED is turned ON when the target
device (Y) is turned ON from [Online]  [Device monitor] in
Setting/monitoring tools for the C Controller module, with the
C Controller module in the STOP status.
398
Check item
For "-LS", consult with the
partner (operating system vendor).
Check item
Check item
Corrective action
• Store the unprocessed script file in an SD memory card
or CompactFlash card, and turn the power on again.
• Initialize the C Controller module.
(Page 62, Section 6.1)
• Store the unprocessed script file in an SD memory card
or CompactFlash card, and turn the power on again.
• Cordon a free space in the standard ROM.
• Initialize the C Controller module.
(Page 62, Section 6.1)
Corrective action
• Network load is increased and startup may be
prevented. Disconnect the Ethernet cable and start the
C Controller module again.
• Initialize the C Controller module.
(Page 62, Section 6.1)
Corrective action
Put the C Controller module into RUN status.
Reexamine the user program.
Check the "Start I/O" of the target module in [Diagnostics]
 [System monitor] in Setting/monitoring tools for the C
Controller module and correct the output No. of the user
program.
Reexamine the user program.