wincc7.0，2G的内存，是所有的DI点都好像断线了一个周期。查了dignose
如下，没啥问题。电磁干扰怎么检查啊？会不会是时间同步的原因，但也不会弄的DI掉线一个周期？会不会是s7 400 带的400的模块又带300的造成的数据采集周期的错误？这个开关量模块是第一 个信号采集模块在机架上。300对400的干扰有可能吗？
Event 1 of 120: 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:
- 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:
- Warm restart triggered by switch setting
Previous operating mode: STARTUP (warm restart)
Requested operating mode: RUN
Incoming event
07:03:21.425 PM 01/15/1994


Event 2 of 120: Event ID 16# 1381
Request for manual warm restart
STOP due to: STOP caused by stop switch being activated
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:
- 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:
- Warm restart triggered by switch setting
Requested OB: Startup OB (OB100)
Priority class: 27
Incoming event
07:03:20.394 PM 01/15/1994


Event 3 of 120: Event ID 16# 4301
Mode transition from STOP to STARTUP
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: STARTUP (warm restart)
Incoming event
07:03:20.367 PM 01/15/1994


Event 4 of 120: 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 via MP
Permissibility of certain startup types:
- Manual warm restart permitted
Last valid operation or setting of automatic startup type at power on:
- Warm restart triggered by switch setting
Operating mode: STOP (internal)
Incoming event
07:03:20.366 PM 01/15/1994