Event 8 of 10:  Event ID 16# 4301

Mode transition from STOP to STARTUP 

STOP due to: STOP due to IO error 

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; last power on backed up

Permissibility of certain startup types: 

- Manual warm restart permitted

- Automatic warm restart permitted

Last valid operation or setting of the automatic startup type at power on:

- Warm restart triggered by switch setting; last power on backed up

Previous operating mode: STOP (internal)

Requested operating mode: STARTUP (warm restart)

Incoming event

03:44:03.275 AM  01/22/2018

Event 9 of 10:  Event ID 16# 494D

STOP due to IO error 

No relevance for user (Z2): 5752 (Z3): 2101 

Previous operating mode: RUN 

Requested operating mode: STOP (internal)

External error, Incoming event

03:42:47.967 AM  01/22/2018

Event 10 of 10:  Event ID 16# 4302

Mode transition from STARTUP to RUN

Startup information: 

- Time for time stamp at the last backed up power on

- Single processor operation

Current/last startup type:

- Automatic warm restart after backed up power on

Permissibility of certain startup types: 

- Manual warm restart permitted

- Automatic warm restart permitted

Last valid operation or setting of automatic startup type at power on:

- Automatic warm restart after backed up power on

Previous operating mode: STARTUP (warm restart)

Requested operating mode: RUN

Incoming event

09:35:14.352 AM  01/21/2018

以上是模块诊断信息，无规律停机，重启后又可以正常工作，有哪位大侠遇到过，指教一下