hi Kans23,

When all LED are blinking the CPU is in DEFECTIVE. Here you can see the entry from your diagnosic buffer:

dignostic buffer

Event 116 of 3200:  Event ID 16# 4550
DEFECTIVE: internal system error
No relevance for user (Z1): 0320
No relevance for user (Z2): 4807 (Z3): 048a
Previous operating mode: DEFECTIVE
Requested operating mode: DEFECTIVE
Event occurred in the master CPU in rack 0
Internal error, Incoming event
08:23:52.094 AM  02/02/2021
(Coding: 16# 4550  F8DD  C050  0320  4807  048A)

 this event could be triggered by other events, like:

diagnostic buffer

Event 151 of 3200:  Event ID 16# 3942
Module problem or maintenance necessary
Module type: Distributed I/0s
Input address: 16194
User information available
Diagnostic interrupt from substitute
Module/submodule fault
External module error
Alarm in rack 0
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Incoming event
04:30:41.384 AM  02/02/2021
(Coding: 16# 3942  1952  D054  3F42  0563  0000)

It is possible that you have some interferences in your station, that makes the CPU to detect a defect.

I could also see that your FW-version is very old. An update can help to avoid errors like this.

find the newest version here:

Operating system update: CPU410-5H Process Automation

hope this helps,

regards,