Emerson Exchange 365

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How to increase the number of retries for HART?

Is it possible increase the number of retries for HART communication in Ovation?

• HART

Stefan Greisen

• 14 Oct 2015 8:29 AM
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6 Replies

• Greg Schirm

  

  • 14 Oct 2015 12:26 PM

  Hi Stefan - would you be able to provide some more details into your situation? Is this wireless HART or is this from the I/O cards? What underlying issue makes you want to increase the number of retries?

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• Stefan Greisen

  

  • 14 Oct 2015 12:41 PM

  In reply to Greg Schirm:

  It is wired HART, on an OVATION AI （Hart）Card， E type card：5X00106G02 ；P type card：5X00109G01A
  
  I have a device which does not always replay to the HART telegrams, and I need the master to retransmit 5 or 6 times to get reliable communication.
  
  At the moment it is not an option to replace the device.

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• Greg Schirm

  

  • 14 Oct 2015 12:55 PM

  In reply to Stefan Greisen:

  Thanks Stefan. I am curious about a few more things. Hopefully you are able to answer these:
  What is the device type and name?
  What is the firmware in the device?
  And do you know the firmware on the HART AI card?

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• Stefan Greisen

  

  • 14 Oct 2015 1:13 PM

  In reply to Greg Schirm:

  In some of the other HART masters I have used, the number of retries is just a simple setting. Is that also the case for Ovation?
  
  The problem is related to the device, that is confirmed by using other HART masters and HART modems.
  
  I just need to know if the issue can be resolved by changing a setting in Ovation.

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• Greg Schirm

  

  • 14 Oct 2015 3:15 PM

  In reply to Stefan Greisen:

  Researching this further for you, unfortunately, it appears you cannot change the number of retries within an Ovation setting right now.

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• Stefan Greisen

  

  • 15 Oct 2015 6:54 AM

  In reply to Greg Schirm:

  OK.
  
  Thank you

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