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Invalid_String10-Marble
10-Marble
July 18, 2024
Solved

CLX ETH Redundancy Option

  • July 18, 2024
  • 1 reply
  • 1492 views

If my KepServerEx V6 instance has two separate network connections to a pair of EN4TR com cards in a CLX rack,  This is to give me redundant com paths to the critical systems.

 

Is there a way to configure them in a redundant\failover architecture within KepServerEx?

 

I know this can be done with an external router but I was hoping there was a native solution.

 

 

Best answer by cmorehead

@Invalid_String 

 

The link tag function would not work since there would be a secondary path. The two channels cannot be named the same and the Link Tag does have the functionality to recognize the secondary path.

 

Thanks,

*Chris 

1 reply

C
cmorehead13-Aquamarine
13-Aquamarine
July 22, 2024

@Invalid_String 

 

The functionality you have described could possibly be done with Media Level Redundancy. Here is a link to the Kepware knowledge base article that covers the use of Media Level Redundancy:

 

Article - CS304183 - Media Level Redundancy feature with PTC Kepware Products

 

You can your MyKepware login credentials to access the article.

 

I also recommend opening a support ticket with the Kepware team to analyze your specific architecture. Here is a link to the login page where a ticket can be logged:

 

Log In | My Kepware

 

Thanks,

*Chris

I
Invalid_String10-MarbleAuthor
10-Marble
July 22, 2024

@cmorehead 

Are linked tags supported with Media Level Redundancy?

I have a large number of linked tags between an OPC DA server and this CLX ETH instance.

IF a failover were to happen, would the linked tags still function?

 

Since mirror tags are created on the secondary device, I suppose it is possible that the linked tag read/write request referencing the primary tag would just use the secondary path.

C
cmorehead13-AquamarineAnswer
13-Aquamarine
July 22, 2024

@Invalid_String 

 

The link tag function would not work since there would be a secondary path. The two channels cannot be named the same and the Link Tag does have the functionality to recognize the secondary path.

 

Thanks,

*Chris 

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