Hello, does anyone know the reason for below warning message?

Diagnostic buffer of module CPU 417-4

Order No./ Description         Component                      Version
6ES7 417-4XT05-0AB0            Hardware                       3
- - -                          Firmware                       V 5.3.0
Boot Loader                    Firmware expansion             V 5.0.4

Rack:                          0
Slot:                          3

Event 1 of 3000:  Event ID 16# 39B3
No entry in text database. Hexadecimal values will be displayed.
Event ID: 16# 39B3
OB: 16# 55
PK: 16# 19
DatID 1/ 2: 16# 50  30
Additional info1 / 2 / 3: 16# 2942  0000  037B
External error, Incoming event
08:33:05.990 AM  07/16/2019

Event 6 of 3000:  Event ID 16# 39B3
No entry in text database. Hexadecimal values will be displayed.
Event ID: 16# 39B3
OB: 16# 55
PK: 16# 19
DatID 1/ 2: 16# 50  57
Additional info1 / 2 / 3: 16# 2942  0008  0363
External error, Incoming event
08:33:05.990 AM  07/16/2019

Event 9 of 3000:  Event ID 16# 39B4
No entry in text database. Hexadecimal values will be displayed.
Event ID: 16# 39B4
OB: 16# 55
PK: 16# 19
DatID 1/ 2: 16# 50  30
Additional info1 / 2 / 3: 16# 2943  0000  0282
External error, Incoming event
08:33:05.989 AM  07/16/2019

Event 12 of 3000:  Event ID 16# 39B4
No entry in text database. Hexadecimal values will be displayed.
Event ID: 16# 39B4
OB: 16# 55
PK: 16# 19
DatID 1/ 2: 16# 50  57
Additional info1 / 2 / 3: 16# 2943  0008  0272
External error, Incoming event
08:33:05.989 AM  07/16/2019

Event 13 of 3000:  Event ID 16# 39C4
No entry in text database. Hexadecimal values will be displayed.
Event ID: 16# 39C4
OB: 16# 56
PK: 16# 19
DatID 1/ 2: 16# 54  C0
Additional info1 / 2 / 3: 16# 3FFC  3F91  0238
External error, Incoming event
08:33:05.908 AM  07/16/2019

Event 14 of 3000:  Event ID 16# 38B3
No entry in text database. Hexadecimal values will be displayed.
Event ID: 16# 38B3
OB: 16# 55
PK: 16# 19
DatID 1/ 2: 16# 50  10
Additional info1 / 2 / 3: 16# 2942  0000  02AE
External error, Outgoing event
04:24:51.181 AM  07/14/2019

Hello hz-chen,

please be so kind and don't twice or more for the same kroblem.

Thanks.

https://support.industry.siemens.com/tf/ww/en/posts/diagnostic-buffer-of-module-cpu-417-4/217083/?page=0&pageSize=10#post860090

Closed cause question posted twice.

The second thread with the subject Diagnostic buffer of module CPU 417-4 is published within the conference SIMATIC S7-400 / S7-400H / S7-400F /FH.

Best regards

Jen_Moderator