设备每次停机后CPU报警SF（报警信息如下所示），重启CPU后报警消除，什么原因？怎么解决？万分谢谢！
DiagnoSTicbufferofmoduleCPU317-2DP
OrderNo./DescriptionComponentVersion
6ES7317-2AJ10-0AB0Hardware5
–––FirmwareV2.6.0
BootLoaderFirmwareexpansionA10.13.9
Rack:0
Slot:2
Serialnumber:SC-VNE203912007
Event1of10:EventID16#2943
I/OacCEsserror,writing
Parea,double-wordaccess,Accessaddress:280
RequestedOB:I/OaccesserrorOB(OB122)
PriorityclASs:12
Externalerror,Incomingevent
12:13:14.200AM09/04/1998
(Coding:16#29430C7A0030011800000000)
Event2of10:EventID16#2942
I/Oaccesserror,reading
Parea,double-wordaccess,Accessaddress:280
RequestedOB:I/OaccesserrorOB(OB122)
Priorityclass:12
Externalerror,Incomingevent
12:13:14.200AM09/04/1998
(Coding:16#29420C7A0030011800000000)
Event3of10:EventID16#2943
I/Oaccesserror,writing
Parea,double-wordaccess,Accessaddress:280
RequestedOB:I/OaccesserrorOB(OB122)
Priorityclass:12
Externalerror,Incomingevent
12:13:14.100AM09/04/1998
(Coding:16#29430C7A0030011800000000)
Event4of10:EventID16#2942
I/Oaccesserror,reading
Parea,double-wordaccess,Accessaddress:280
RequestedOB:I/OaccesserrorOB(OB122)
Priorityclass:12
Externalerror,Incomingevent
12:13:14.100AM09/04/1998
(Coding:16#29420C7A0030011800000000)
最佳答案
参见：为什么会出现“I/O访问错误”和“区域长度错误”
htTPs://suppoRT.industry.siemens.com/cs/document/78943685/为什么会出现“io访问错误”和“区域长度错误”?dti=0&lc=zh-CN
提问者对于答案的评价：
谢谢！
专家置评
已阅，最佳答案正确。
