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Diagnostic buffer of module CPU 315-2 DP
Order No./ Description Component Version
6ES7 315-2AG10-0AB0 Hardware 5
- - - Firmware V 2.0.12
Rack: 0
Slot: 2
Event 1 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 18
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
07:33:35:942 am 07/02/08
Event 2 of 10: Event ID 16# 2942
I/O access error, reading
P area, double-word access, Access address: 17
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
07:33:35:942 am 07/02/08
Event 3 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 16
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
07:33:35:941 am 07/02/08
Event 4 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 38
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
07:33:35:941 am 07/02/08
Event 5 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 22
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
07:33:35:940 am 07/02/08
Event 6 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 20
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
07:33:35:937 am 07/02/08
Event 7 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 18
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
07:33:35:936 am 07/02/08
Event 8 of 10: Event ID 16# 2942
I/O access error, reading
P area, double-word access, Access address: 17
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
07:33:35:936 am 07/02/08
Event 9 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 16
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
07:33:35:936 am 07/02/08
Event 10 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 38
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
07:33:35:935 am 07/02/08
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I/O访问错误组织块(OB122)
描述
只要在访问模块上的数据时出错,CPU的操作系统即调用OB122。例如,如果在访问I/O模块上的数据时,CPU检测到读取错误,操作系统将调用OB122。
了解I/O访问错误OB的操作
执行OB122时所处优先级与中断OB的优先级相同。如果OB122未编程,则CPU将由RUN模式改变为STOP模式。
7提供了下列SFC,用于在执行程序期间屏蔽和取消屏蔽OB122的启动事件:
SFC36 (MSK_FLT):屏蔽特定的错误代码
SFC37 (DMSK_FLT):取消屏蔽由SFC36屏蔽的错误代码
SFC38 (READ_ERR):读取错误寄存器
因为没有加OB122,所以在出现故障时会停机,在块里面添加一个OB122,自己可以建立,空的也没有关系,下载下去后就不会停机了,但是故障一样还是会报,要查一下真正的原因;
我觉得不是站丢失了,如果是站丢失,肯定会要求OB86,并且诊断信息里会报出丢失的站的DP地址,所以不是站丢失。
你的ET200M后面挂的哪些块?要注意如果模拟量模块或者一些特殊功能模块组态地址和在程序中编程地址是不是不一致!
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