400H冗余问题，无法从PLC 1切换到PLC2 I/O地址诊断错误400H redundancy issue , not being able to switch from PLC 1 to PLC2 I/O addresses diagnostic error

大家好

HI Everybody

我在冗余模式下遇到2个400 H PLC的以下问题。每次当PLC 1进入停止模式或关闭时，第二个PLC不会进入运行模式。连接到Y耦合器的从属设备在诊断缓冲器中没有任何问题，但我确实对连接到PLC 1的其他Profibus设备的地址有问题。因此，在诊断缓冲区警报中显示了硬件配置图中所示的PLC 2网络A和D中的Profibus地址无法读取或无法写入的问题（为了解决这个问题，我已经根据主PLC调节了软件逻辑中的地址，但我仍然有I/O诊断错误，就像诊断缓冲区不关心逻辑中地址是否调节一样，重要的是当PLC运行时，与这些地址相关的硬件是否存在。我的问题是当PLC 1停止工作或脱机模式时，I/O诊断错误会影响PLC 2进入运行模式吗？ 

I’m experiencing the following issue with 2 PLCs 400 H in redundancy mode. Every time when the PLC 1 goes into stop mode or it is turned off the second PLC doesn’t go into run mode. The slave devices connected to the Y couplers don’t have any problem in the diagnostic buffer, but I do have problems with the addresses from the other Profibus devices connected to PLC 1. Therefore  in the diagnostic buffer alerts show issues about no reading or being able to write in the Profibus addresses in PLC 2 network A and D shown in the picture of the hardware configuration (in order to fix this issue I already conditioned the addresses in the software logic  depending on which PLCis the master but I still have the I/O diagnostic errors, it is like the diagnostic buffer doesn’t care about if the addresses are conditioned in the logic, what matters to it is if the hardware related to those addresses exist or not when the PLC is running. My question is having these I/O diagnostic errors affects PLC 2 going in run mode when PLC 1 stops working or goes in offline mode? 

硬件配置已随附，请查看，并告诉我可能发生的情况。提前谢谢你

The hardware configuration is attached, please take a look, and let me know what it could be happening. thank you in advanced

你好Dante78,

Hi Dante78,

配置显示为“单面DP从机中的冗余IO”。您应该使用冗余IO库块和一些硬件配置设置。请参阅容错系统手册。

The configuration appears as 'Redundant IOs in single sided DP slave'. You should use Redundant IO library blocks & some hardware configuration settings. Please refer fault tolerant system manual.

你好，但丁，

 Hello Dante,

我只是想知道在整个编译过程中是否出现了任何错误消息？

I just wanted to know that during Entire compilation have any error message came or not?

此外，您在IM模块配置中选择了什么Profibus网络！

Also what Profibus network have you selected in IM modules comfiguration!

当做

Regards

奥姆克里斯

OmKris