Emerson Exchange 365

PK controller and AB Powerflex 70 VFD

We have a new Emerson PK controller and need to communicate to a PowerFlex 70 over Ethernet/IP. Now we’ve done this with a “regular” DeltaV controller using a VIM module. But it seems the same settings are not working here. Need to check some more. I know the PK is somewhat new. But has anyone here got this combination to work? Must be a setting somewhere, but there are many of them. Any help will be much appreciated.

jakerekes

• 16 Oct 2020 11:51 AM
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4 Replies

• Nathan Hunt

  

  • 28 Apr 2021 1:30 PM

  jakerekes were you able to make this connection?

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• jakerekes

  

  • 7 May 2021 11:42 AM

  In reply to Nathan Hunt:

  Yes, we got it to work.

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• Nathan Hunt

  

  • 2 Aug 2021 5:53 PM

  In reply to jakerekes:

  Jake,
  Did you use explicit class 3 messaging?
  
  I'm currently using class 3 explicit:
  Class ID 15 (parameters)
  Instance ID 31 (motor nameplate volts)
  
  Data Description:
  Input, byte offset: 0,
  Data type: 16uint, Byte order: Big End, Word order: normal,
  All bits used
  Attribute ID: 1
  
  I'm expecting to see 230 as that's what the power flex 525 is setup for.
  
  I'm getting bad integrity and no device comms from diagnostics.
  
  Any advice?
  
  Thanks

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• Nathan Hunt

  

  • 12 Aug 2021 11:20 PM

  In reply to Nathan Hunt:

  I ended up using the following configuration:
  Class ID 15 (parameters)
  Instance ID 31 (motor nameplate volts)
  RPI 500
  Connection Priority: Low (found this in a NK document)
  
  Data Description:
  Input, byte offset: 0,
  Data type: 16uint, Byte order: Little Endian, Word order: normal,
  All bits used
  Attribute ID: 1

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