我使用的是PCS7,CPU是冗余414-4-2H
昨天工艺人员讲，突然所有投到自动的PID都变成手动，且输出变到0.

后来我查找CPU有如下诊断信息。
个人怀疑是CPU瞬间停电，然后又上电重启，大约20秒的时间完成启动过程。
但有一点疑惑，我发现主从CPU切换了。
之前我直接整体下电，主从CPU是不会切换的。

还请大侠们帮我分析分析，还有什么可能性，或是否是什么模块运行状态不好。

诊断信息如下：
Diagnostic buffer of module CPU 414-4 H

Order No./ Des cription Component Version
6ES7 414-4HM14-0AB0 Hardware 1
- - - Firmware V 4.5.1

Rack: 0
Slot: 3


Event 1 of 3000: Event ID 16# 7303
H system (1 out of 2) has gone into redundant mode
Occurred in: Master CPU in rack 0
Startup information:
- Startup without modified system configuration
Update time in ms: 107
Requested OB: CPU redundancy error OB (OB72)
Priority class: 28
Incoming event
11:22:11.245 AM 03/17/2010


Event 2 of 3000: Event ID 16# 43E2
Change from update mode to operating mode RUN (redundant mode)
Previous operating mode: UPDATE
Requested operating mode: RUN (redundant mode)
Event occurred in the master CPU in rack 0
Incoming event
11:22:11.209 AM 03/17/2010


Event 3 of 3000: Event ID 16# 43E9
Standby CPU: Change from startup mode to update mode
Previous operating mode: STARTUP (warm restart)
Requested operating mode: UPDATE
Event occurred in the standby CPU in rack 1
Incoming event
11:22:10.976 AM 03/17/2010


Event 4 of 3000: Event ID 16# 43E1
Change from link-up mode to update mode
Previous operating mode: LINK-UP
Requested operating mode: UPDATE
Event occurred in the master CPU in rack 0
Incoming event
11:22:10.976 AM 03/17/2010


Event 5 of 3000: Event ID 16# 43E8
Standby CPU: Change from link-up mode to startup mode
STOP due to: STOP caused by stop switch being activated
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 the automatic startup type at power on:
- Warm restart triggered by switch setting
Previous operating mode: LINK-UP
Requested operating mode: STARTUP (warm restart)
Event occurred in the standby CPU in rack 1
Incoming event
11:22:05.710 AM 03/17/2010


Event 6 of 3000: Event ID 16# 5371
Distributed I/Os: end of the synchronization with a DP master
Slot of the DP master: 3 in rack 1
Number of distributed stations: 6
Event occurred in the standby CPU in rack 1
Incoming event
11:22:04.531 AM 03/17/2010


Event 7 of 3000: Event ID 16# 43E0
Change from STOP (internal) to link-up mode
STOP due to: STOP caused by stop switch being activated
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 the automatic startup type at power on:
- Warm restart triggered by switch setting
Previous operating mode: STOP (internal)
Requested operating mode: LINK-UP
Event occurred in the standby CPU in rack 1
Incoming event
11:22:03.248 AM 03/17/2010


Event 8 of 3000: Event ID 16# 43E0
Change from RUN to link-up mode
Previous operating mode: RUN
Requested operating mode: LINK-UP
Event occurred in the master CPU in rack 0
Incoming event
11:22:03.247 AM 03/17/2010


Event 9 of 3000: Event ID 16# 43E3
Master CPU: Change from redundant mode to solo mode
Previous operating mode: RUN (redundant mode)
Requested operating mode: RUN
Event occurred in the master CPU in rack 0
Incoming event
11:22:00.770 AM 03/17/2010


Event 10 of 3000: Event ID 16# 4303
STOP caused by stop switch being activated
Previous operating mode: RUN (redundant mode)
Requested operating mode: STOP (internal)
Event occurred in the standby CPU in rack 1
Incoming event
11:22:00.770 AM 03/17/2010


Event 11 of 3000: Event ID 16# 7302
Loss of redundancy (2oo2) because standby CPU is in STOP mode triggered by user
CPU affected: Standby CPU in rack 1
Requested OB: CPU redundancy error OB (OB72)
Priority class: 28
Incoming event
11:22:00.770 AM 03/17/2010


Event 12 of 3000: Event ID 16# 43F1
Switchover of master CPU and standby CPU
Previous operating mode: RUN (redundant mode)
Requested operating mode: RUN (redundant mode)
Event occurred in the standby CPU in rack 0
Incoming event
11:22:00.770 AM 03/17/2010





Event 34 of 3000: Event ID 16# 3942
Module problem or maintenance necessary
Module type: Analog SM
Input address: 592
Channel information available
Module/submodule fault
External module error
Channel error detected
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Incoming event
10:36:19.263 AM 03/17/2010


Event 35 of 3000: Event ID 16# 3942
Module problem or maintenance necessary
Module type: Analog SM
Input address: 576
Channel information available
Module/submodule fault
External module error
Channel error detected
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Incoming event
10:36:07.372 AM 03/17/2010


Event 36 of 3000: Event ID 16# 3942
Module problem or maintenance necessary
Module type: Analog SM
Input address: 576
Channel information available
Module/submodule fault
External module error
Channel error detected
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Incoming event
10:36:05.116 AM 03/17/2010


Event 37 of 3000: Event ID 16# 3942
Module problem or maintenance necessary
Module type: Analog SM
Input address: 576
Channel information available
Module/submodule fault
External module error
Channel error detected
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Incoming event
10:36:03.692 AM 03/17/2010


Event 38 of 3000: Event ID 16# 3842
Module OK
Module type: Analog SM
Input address: 512
Channel information available
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Outgoing event
10:36:03.459 AM 03/17/2010


Event 39 of 3000: Event ID 16# 7303
H system (1 out of 2) has gone into redundant mode
Occurred in: Master CPU in rack 1
Startup information:
- Startup without modified system configuration
Update time in ms: 107
Requested OB: CPU redundancy error OB (OB72)
Priority class: 28
Incoming event
10:36:01.742 AM 03/17/2010


Event 40 of 3000: Event ID 16# 43E2
Change from update mode to operating mode RUN (redundant mode)
Previous operating mode: UPDATE
Requested operating mode: RUN (redundant mode)
Event occurred in the master CPU in rack 1
Incoming event
10:36:01.716 AM 03/17/2010


Event 41 of 3000: Event ID 16# 43E9
Standby CPU: Change from startup mode to update mode
Previous operating mode: STARTUP (warm restart)
Requested operating mode: UPDATE
Event occurred in the standby CPU in rack 0
Incoming event
10:36:01.490 AM 03/17/2010


Event 42 of 3000: Event ID 16# 43E1
Change from link-up mode to update mode
Previous operating mode: LINK-UP
Requested operating mode: UPDATE
Event occurred in the master CPU in rack 1
Incoming event
10:36:01.490 AM 03/17/2010


Event 43 of 3000: Event ID 16# 3842
Module OK
Module type: Analog SM
Input address: 592
Channel information available
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Outgoing event
10:36:00.507 AM 03/17/2010


Event 44 of 3000: Event ID 16# 43E8
Standby CPU: Change from link-up mode to startup mode
STOP due to: Power failure
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 the automatic startup type at power on:
- Automatic warm restart after backed up power on
Previous operating mode: LINK-UP
Requested operating mode: STARTUP (warm restart)
Event occurred in the standby CPU in rack 0
Incoming event
10:35:57.365 AM 03/17/2010


Event 45 of 3000: Event ID 16# 3942
Module problem or maintenance necessary
Module type: Analog SM
Input address: 512
Channel information available
Module/submodule fault
External module error
Channel error detected
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Incoming event
10:35:56.548 AM 03/17/2010


Event 46 of 3000: Event ID 16# 5371
Distributed I/Os: end of the synchronization with a DP master
Slot of the DP master: 3 in rack 0
Number of distributed stations: 6
Event occurred in the standby CPU in rack 0
Incoming event
10:35:56.147 AM 03/17/2010


Event 47 of 3000: Event ID 16# 3842
Module OK
Module type: Analog SM
Output address: 528
Channel information available
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Outgoing event
10:35:55.204 AM 03/17/2010


Event 48 of 3000: Event ID 16# 3942
Module problem or maintenance necessary
Module type: Analog SM
Output address: 592
Channel information available
Module/submodule fault
External module error
Channel error detected
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Incoming event
10:35:55.184 AM 03/17/2010


Event 49 of 3000: Event ID 16# 3942
Module problem or maintenance necessary
Module type: Analog SM
Output address: 528
Channel information available
Module/submodule fault
External module error
Channel error detected
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Incoming event
10:35:55.163 AM 03/17/2010


Event 50 of 3000: Event ID 16# 43E0
Change from STOP (internal) to link-up mode
STOP due to: Power failure
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 the automatic startup type at power on:
- Automatic warm restart after backed up power on
Previous operating mode: STOP (internal)
Requested operating mode: LINK-UP
Event occurred in the standby CPU in rack 0
Incoming event
10:35:54.876 AM 03/17/2010


Event 51 of 3000: Event ID 16# 43E0
Change from RUN to link-up mode
Previous operating mode: RUN
Requested operating mode: LINK-UP
Event occurred in the master CPU in rack 1
Incoming event
10:35:54.875 AM 03/17/2010


Event 52 of 3000: Event ID 16# 3842
Module OK
Module type: Analog SM
Output address: 592
Channel information available
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Outgoing event
10:35:54.778 AM 03/17/2010


Event 53 of 3000: Event ID 16# 3942
Module problem or maintenance necessary
Module type: Analog SM
Input address: 736
Channel information available
Module/submodule fault
External module error
Channel error detected
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Incoming event
10:35:54.708 AM 03/17/2010


Event 54 of 3000: Event ID 16# 3942
Module problem or maintenance necessary
Module type: Analog SM
Input address: 720
Channel information available
Module/submodule fault
External module error
Channel error detected
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Incoming event
10:35:54.689 AM 03/17/2010


Event 55 of 3000: Event ID 16# 3942
Module problem or maintenance necessary
Module type: Analog SM
Output address: 592
Channel information available
Module/submodule fault
External module error
Channel error detected
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Incoming event
10:35:54.675 AM 03/17/2010


Event 56 of 3000: Event ID 16# 3942
Module problem or maintenance necessary
Module type: Analog SM
Input address: 752
Channel information available
Module/submodule fault
External module error
Channel error detected
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Incoming event
10:35:54.660 AM 03/17/2010


Event 57 of 3000: Event ID 16# 3942
Module problem or maintenance necessary
Module type: Analog SM
Input address: 592
Channel information available
Module/submodule fault
External module error
Channel error detected
Alarm in rack 1
Requested OB: Diagnostic interrupt OB (OB82)
Priority class: 25
External error, Incoming event
10:35:54.647 AM 03/17/2010


Event 58 of 3000: 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
Event occurred in the master CPU in rack 1
Incoming event
10:35:54.622 AM 03/17/2010


Event 59 of 3000: Event ID 16# 138B
Master CPU: request for automatic warm restart
STOP due to: Power failure
Startup information:
- Startup without modified system configuration
- No difference between setpoint and actual configuration
- 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
Requested OB: Startup OB (OB100)
Priority class: 27
Incoming event
10:35:52.693 AM 03/17/2010


Event 60 of 3000: Event ID 16# 4301
Mode transition from STOP to STARTUP
STOP due to: Power failure
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 the automatic startup type at power on:
- Automatic warm restart after backed up power on
Previous operating mode: STOP (internal)
Requested operating mode: STARTUP (warm restart)
Event occurred in the master CPU in rack 1
Incoming event
10:35:51.963 AM 03/17/2010


Event 61 of 3000: Event ID 16# 5371
Distributed I/Os: end of the synchronization with a DP master
Slot of the DP master: 3 in rack 1
Number of distributed stations: 6
Event occurred in the master CPU in rack 1
Incoming event
10:35:50.993 AM 03/17/2010


Event 62 of 3000: Event ID 16# 530D
New startup information in STOP mode
Startup prevented by:
- 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
- Automatic warm restart permitted
Last valid operation or setting of automatic startup type at power on:
- Automatic warm restart after backed up power on
Operating mode: STOP (internal)
Event occurred in the master CPU in rack 1
Incoming event
10:35:46.533 AM 03/17/2010


Event 63 of 3000: Event ID 16# 4300
Power on backed up
Initialization information: Initialization after power on (backed up CPU)
Previous operating mode: No voltage
Requested operating mode: STOP (own initialization)
Event occurred in the master CPU in rack 1
Incoming event
10:35:45.714 AM 03/17/2010


Event 64 of 3000: Event ID 16# 494E
Power failure
Previous operating mode: RUN
Requested operating mode: No voltage
Event occurred in the master CPU in rack 1
External error, Incoming event
10:35:40.709 AM 03/17/2010


Event 65 of 3000: Event ID 16# 43E3
Master CPU: Change from redundant mode to solo mode
Previous operating mode: RUN (redundant mode)
Requested operating mode: RUN
Event occurred in the master CPU in rack 1
Incoming event
10:35:40.695 AM 03/17/2010


Event 66 of 3000: Event ID 16# 7331
Switchover of standby CPU and master CPU due to failure of master CPU
CPU affected: Standby CPU in rack 0
Event: ###0###ANZEIGETEXTECPU=
Requested OB: CPU redundancy error OB (OB72)
Priority class: 28
Incoming event
10:35:40.695 AM 03/17/2010


Event 67 of 3000: Event ID 16# 43F1
Switchover of master CPU and standby CPU
Previous operating mode: RUN (redundant mode)
Requested operating mode: RUN (redundant mode)
Event occurred in the standby CPU in rack 1
Incoming event
10:35:40.695 AM 03/17/2010