现场cpu416F 插着CP 443-5 通信卡，下面挂着100多个站，cp卡停机了，重启也不行，断电后正常，在线硬件组态无法访问诊断缓存区，可以访问cpu 的诊断缓存区。

Order No./ Description         Component                      Version                      
6ES7 416-3FS06-0AB0            Hardware                       1                            
- - -                          Firmware                       V 6.0.2                      
Boot Loader                    Firmware expansion             V 6.0.0                      

Rack:                          ---
Slot:                          ---

Serial number: SVPB2294196

Event 1 of 120:  Event ID 16# 530D
New startup information in STOP mode
Startup prevented by:
- STOP request exists
- Cold restart or warm restart necessary
Startup information:
- Time for time stamp at the last backed up power on
- Single processor operation
Current/last startup type:
- Warm restart triggered by switch setting
Permissibility of certain startup types:
- Manual warm restart permitted
Last valid operation or setting of automatic startup type at power on:
- No startup type/following memory reset
Operating mode: STOP (internal)
Incoming event
04:21:23.627 PM  02/24/2018
(Coding: 16# 530D  FF04  C777  0041  0803  0700)

Event 2 of 120:  Event ID 16# 494D
STOP due to IO error
No relevance for user (Z1): 940b
No relevance for user (Z2): 0006 (Z3): 0078
Previous operating mode: RUN
Requested operating mode: STOP (internal)
External error, Incoming event
04:21:23.623 PM  02/24/2018
(Coding: 16# 494D  FF84  5050  940B  0006  0078)