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问题是为什么CPU上的EXTF LED一直亮着。CPU模块信息中存在外部故障。不存在其他故障。
The question is why the EXTF LED at the CPU is lit on all the time. External Fault present within CPU module information. No other faults present.
在硬件配置中，所有网元都正常。在在线拓扑中，唯一的红色标记元素是CPU。另请参阅随附的诊断缓冲区上载。
Within Hardware Configuration all network elements are healthy. Also within online topology the only red marked element is the CPU. Please also see attached the upload of the diagnostic buffer.
CPU详细信息：CPU 416F-3 PN/DP，416-3FS07-0AB0，V7.0.0。
Details of the CPU: CPU 416F-3 PN/DP, 416-3FS07-0AB0, V7.0.0.
我如何了解外部故障存在的原因？
How can I learn the reason of External Fault being present?
你好，kjanda75，
hi kjanda75,
CPU连接了什么？
what is connected to the CPU?
这是外部故障。也许硬件中有Profibus或Profinet投影，但没有任何连接。
this is an external fault. Maybe there is a Profibus or Profinet projected in HW and there´s nothing connected.
致问候，
regards,
你好mopS04
Hi mopS04
感谢您的回复。因此，Profibus和Profinet网络都是健康的。Profinet拓扑也正常。
Thanks for reply. So there are both - Profibus and Profinet networks, both are healthy. Profinet topology healthy as well.
与此同时，我的同事联系了西门子，得知问题可能是配置的PN/PN耦合器版本（v2.0）和物理连接的版本（v3.0）之间存在差异。
In the meantime my colleague contacted Siemens, was advised that possibly the problem is in discrepancy between version of PN/PN coupler configured (v2.0) and physically connected (v3.0).
由于我们整天都在制作，所以我们只有在周六才有机会下载硬件配置。
As we have production all day and night we will have opportunity to download HW-Config only on Saturday.
我希望问题出在PN/PN耦合器配置中，奇怪的是没有总线故障
I hope the problem is in PN/PN coupler configuration, strange is there is no Bus fault
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