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SEL 751 over Ethernet to PK 750

Hello,

I'm trying to communicate with a SEL 751 Relay over Ethernet/IP into a PK 750. I was able to get the EDS file using RS Linx classic and open it up in notepad.

I can see the assembly instances. but when I plug those values in I get bad status on the LDT's. 

Anybody have experience with this? 

Michael Irwin

• 23 Oct 2024 12:55 AM
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1 Reply

• Matt Forbis

  

  • 24 Oct 2024 2:06 PM

  I have experience with SEL 710's and I suspect the 751 is similiar but I don't know for sure. What I found for the 710, is that the Ethernet/IP map is configured in the SEL software itself and so it was custom per application. We mapped in the individual parameters that we wanted to see in DeltaV through the EIOC.
  
  In our case, the input assembly was 100, the output assembly was 101 (I don't think these changed). Then the other uniqueness is that booleans still were mapped as a full byte in the map and FP were 4 bytes (all analog values).
  
  Sorry I can't necessarily be of more help.

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