Emerson Exchange 365

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M-Series Serial Card Configuration

So I have installed an M-Series Serial Card series 2  in DeltaV 13.3 system.  We have multiple configurations that use this similar setup so we are well versed in the configuration so that is what has me stumped. 

Serial Card Configuration:

Port 1 Configured as

Enabled

Master

485 half duplex,

19200 8-N-1

all other settings default.

I do the full configure on port 1 and then download the I/O controller,  the moment we do with no wiring we get a solid amber light (indicating a connection) on port 1.

If we do wire it as per BOL, terminals 2/4 , we are not able to communicate to the end device. No light changes 

****

I put a different configuration (for a known working configuration) on the controller assign the serial port no amber light until connection to plc and it will communicate the same PLC. 

I am stumped if I do the same configuration to Port 2 I get the same result of no communication/solid amber light

• M-series
• configuration
• serial
• MODBUS

cpeavoy

• 26 Feb 2019 5:48 AM
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3 Replies

• Dominick Rodriguez

  

  • 27 Feb 2019 2:39 PM

  Hi,
  
  I would recommend that you reach out to the Guardian Support Center, which is our global support center. They will be able to help by comparing the devices with the configurations that you have created.
  
  Contact information for the support service can be found below. They should be able to help you figure out your communication issues.
  
  E-Mail: ap-sms@ap.emersonprocess.com or ap-sms@emerson.com
  
  Web: www.emerson.com/.../lifecycle-gsc
  
  Guardian Support: https://guardian.emerson.com
  
  Phone: 1-800-833-8314
  
  Thanks,
  Dominick

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• cpeavoy

  

  • 27 Feb 2019 2:52 PM

  In reply to Dominick Rodriguez:

  Thanks Dominick
  I had reached out and this problem stumped them also. We did end up resolving it on our own but multiple tests.
  BOL states that the port port light will be lit when connected to end device (in my case a rs485 slave) unlit when disconnected and flashing when no communication..
  
  This was incorrect in our case
  The port light is on when configured as a master even if it is not wired to anything.
  It seems that once connected and using a single dataset for testing you are able to communicate but the slave device will not indicate communication. Port light will stay on and not change for anything except loss of powwer.
  When you configure the correct # of datasets the end device needs, once connected the two together both ends seem to resolve something status light work as they should. you can disconect the cable and the port light will go out. reconnect and it turns back on and resumes communcation.
  
  Oddly frustrating and 2 days of troubleshooting
  
  But completed..

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• Jason.Brumfield

  

  • 27 Feb 2019 6:15 PM

  In reply to cpeavoy:

  Is the firmware rev the same for the card you are having an issue with and the others you are using for comparison?

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