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10-Marble
November 3, 2023
Solved

Rockwell Array tag referencing

  • November 3, 2023
  • 2 replies
  • 2352 views

I have a series of Rockwell array tags I can't read from Kepware.  I checked the Allen-Bradley ControlLogix Ethernet Driver manual but that wasn't very helpful..  

 

RSLinx Address: [EW03_DRIVES]EW03_Rack00:I.Slot.[0].Fault

 

Kepware Address: ns=2;s=AB_02.EW03_CLX_DRIVES.Global.EW03_Rack00_I.Slot_x.Slot_00.Fault

 

I got the Kepware address from the Prosys OPC UA utility.  I've tried several variations, including dropping .Global and adding .LONG but can't get any results in my data historian,  I can see data in the QuickClient.

 

Any help is appreciated.

 

ControlLogix Ethernet Driver

Rockwell CompactLogix 5300  

Best answer by KG_9996511

I have it working now.  The Kepware address shown above worked, I just didn't give my historian enough time to start pulling the data before trying other formats.

 

 

2 replies

13-Aquamarine
November 7, 2023

@KG_9996511,

 

I need a little clarification on your inquiry. I presume you performed an automatic tag generation to pull in the tags into KEPServerEX, including the array tag. Can you confirm the array tag is working properly in the KEPServerEX Quick Client and you are only having trouble with reading the array tag in your local Historian?  If this correct, you should be able to browse to the tag with the Historian. You should not have to change the "Global" folder group name or change the data type.  Does the Historian have the ability to browse the server tags like the Quick Client? 

 

Thanks,

*Chris

KG_999651110-MarbleAuthorAnswer
10-Marble
November 8, 2023

I have it working now.  The Kepware address shown above worked, I just didn't give my historian enough time to start pulling the data before trying other formats.