Diagnostic buffer of module CPU 315-2 DP
Order No./ Des cription Component Version
6ES7 315-2AH14-0AB0 Hardware 2
Firmware V 3.0.3
Boot Loader Firmware expansion A 25.7.5

Rack: 0
Slot: 2
Event 1 of 10: Event ID 16# 38C4
Distributed I/Os: station return
Address of the affected DP slave: station　number: 21
DP master system ID: 1
Log. base address of the DP slave: Input address: 2013
Log. base address of the DP master: 2047
Requested OB: Rack failure OB (OB86)
Priority class: 26
External error, Outgoing event

Event 2 of 10: Event ID 16# 2943
I/O access error, writing
P area, double-word access, Access address: 396
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event

Event 3 of 10: Event ID 16# 2943
I/O access error, writing
P area, word access, Access address: 394
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event

Event 4 of 10: Event ID 16# 2943
I/O access error, writing
P area, word access, Access address: 392
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event

Event 5 of 10: Event ID 16# 2942
I/O access error, reading
P area, double-word access, Access address: 396
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event

Event 6 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 394
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event

Event 7 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 392
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event

Event 8 of 10: Event ID 16# 2943
I/O access error, writing
P area, double-word access, Access address: 396
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event

Event 9 of 10: Event ID 16# 2943
I/O access error, writing
P area, word access, Access address: 394
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event

Event 10 of 10: Event ID 16# 2943
I/O access error, writing
P area, word access, Access address: 392
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event

补充：1:程序中包括了OB80,82,85,86,87,100,121,122.
2:DP从站数量为34,包括5个ET200M,5个触摸屏,伺服24.
3:自动运行正常，就是偶然出现死机。
4:出现的几次死机，诊断结果基本相同，就是事件1中的从站号不同罢了。