11. TROUBLESHOOTING
 
Error occurrence details
The POWER LED is off.
The RUN LED is off.
The RUN LED is flashing.
The ERR. LED is on.
The ERR. LED is flashing.
The I/O module will not 
operate correctly.
The program cannot be 
written.
The CPU module is 
not started up.
To "Flow for actions when the CPU module is 
not started up" in  
To "Flow for actions when the POWER
LED is turned off" in
To "Flow for actions when the RUN
LED is turned off" in 
To "Flow for actions when the RUN 
LED is flashing" in 
To "Flow for actions when the ERR. 
LED is turned on" in 
To "Flow for actions when the ERR.
LED is flashing" in 
To "Flow for actions when the output 
module's output load does not turn on" in 
To "Flow for actions when the program 
cannot be written" in 
The MODE LED is off.
To "Flow for actions when the MODE
LED turns off" in