cpu315 2dp/pn 上电半个小时自动停机

cpu3152dp/pn上电半个小时自动停机。
现象为ledsf亮，同时cpu处于stop状态，其它从站，2个et200m和em227模块指示灯都正常。上电后再次重复。首先我把ob1里程序清空，还是会停机，说明我的程序没问题。停机时候模块指示灯都正常，所以请教高手指点，谢谢

诊断如下请大家帮忙分析
diagnosticbufferofmodulecpu315-2pn/dp

orderno./descriptioncomponentversion
6es7315-2eh14-0ab0hardware4
---firmwarev3.2.7
bootloaderfirmwareexpansiona32.9.9

rack:0
slot:2

serialnumber:sc-c7uf67812012

event1of112:eventid16#38c4
distributedi/os:stationreturn
addressoftheaffecteddpslave:stationnumber:3
dpmastersystemid:1
log.baseaddressofthedpslave:inputaddress:2043
log.baseaddressofthedpmaster:2047
requestedob:rackfailureob(ob86)
obnotfound,ordisabled,orcannotbestartedinthecurrentoperatingmode
externalerror,outgoingevent
09:38:04.087am11/26/2012
(coding:16#38c4fe56c05407ff07fb0103)

event2of112:eventid16#456f
stopcausedbyrackfailure(obnotloadedornotpossible,ornofrb)
previousoperatingmode:run
requestedoperatingmode:stop(internal)
internalerror,incomingevent
09:38:03.169am11/26/2012
(coding:16#456fff840000010100000000)

event3of112:eventid16#39c4
distributedi/os:stationfailure
addressoftheaffecteddpslave:stationnumber:3
dpmastersystemid:1
log.baseaddressofthedpslave:inputaddress:2043
log.baseaddressofthedpmaster:2047
requestedob:rackfailureob(ob86)
priorityclass:26
externalerror,incomingevent
09:38:03.166am11/26/2012
(coding:16#39c41a56c05407ff07fb0103)

event4of112:eventid16#4302
modetransitionfromstartuptorun
startupinformation:
-timefortimestampatthelastbackeduppoweron
-singleprocessoroperation
current/laststartuptype:
-automaticwarmrestartafterbackeduppoweron
permissibilityofcertainstartuptypes:
-manualwarmrestartpermitted
-automaticwarmrestartpermitted
lastvalidoperationorsettingofautomaticstartuptypeatpoweron:
-automaticwarmrestartafterbackeduppoweron
previousoperatingmode:startup(warmrestart)
requestedoperatingmode:run
incomingevent
09:19:06.488am11/26/2012
(coding:16#4302ff68c700000008107710)

问题补充：
首先谢谢半瓶醋。
我加进去了ob86和ob122，出现的现象是不停机了，但是sf灯还是亮
3号从站配置如下
ps3075a
et200m153-1aa03-oxbo指示灯正常
do16*24322-1bh01-0aa0有输出
ai8*13bit3311kf02-oabo
ai8*12bit331-7kf02-oabo2块，bf灯正常
ao8*12bit332-5kf00_oabo2块bf灯正常

检查了dp接线正确，但是屏蔽线割掉了，没有压到贴片上。

设备正在调试，只进行了数字量调试，还没有进行模拟量调试，我该怎么去检查，怎么处理？

佳答案

requestedob:rackfailureob(ob86)
stopcausedbyrackfailure(obnotloadedornotpossible,ornofrb)
distributedi/os:stationfailure
从上述信息看，是机架故障：
、检查模板的安装，例如模板与机架之间的u型总线连接器、模板与前连接器的安装是否紧固。
、检查从站的通讯模块或接口模块的地址设定与组态的设定是否一致。