Modicon M258/LMC058 controller RUN LED flashes fastly:

Either Application or System generate a safe reboot after a problem detection.
Reboot the system or download application to reset the fault detection.
Add “POUs for implicit check” in your application to locate the origin of the error.
Avoid the usage of pointer.
For analysis, the “/usr/SysLog” directory should be sent to the technical support.

Modicon M258/LMC058 controller RUN LED flashes Green/Red:

“Boot application” is not correct or SystemFault variable not equal to 32#FFFFFFFF(Missing IO Module, Ethernet cable unplugged …).