Mismatch in the Device Revision (“Dev Rev”) 3051C Rosemount Transmitter

1. Delta V Diagnostics report :

- A detailed diagnostic evaluation of the Analog IO cards was conducted. It was determined that the transmitter is incorrectly configured to read field values due to a mismatch in the Device Revision (“Dev Rev”) setting within DeltaV. The newly installed transmitters (DevRev-9) differ from those originally configured.

Actual installed field transmitter has a Device Revision of 9 (“DevRev-9”), whereas in Delta V it is configured as “DevRev-3.” An attempt was made to update this configuration to version 9; however, the current version of Delta V supports transmitters only up to Device Revision 7 (“DevRev-7”). This limitation exists because, during Plant installation, transmitters were limited to revision 7 or earlier.

Any possible solutions for obtaining field values 4 to 20 mA

ANILKUMAR JAYANANDA

• 31 Aug 2025 2:54 PM
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2 Replies

• Tinh Phan

  

  • 31 Aug 2025 5:06 PM

  When commissioning the device in DeltaV, it should notify you that you don’t have the DD(device Description). You can get the DD at the Fieldcommgroup.org or Emerson Install Kit website (https://www.emerson.com/en-us/support/software-downloads-drivers-library) and install it. This will correct your issue.

  using 4-20mA only:

  Use AI Block configure it as Field_val_pct. This will use 4-20 mA. If you use HART_fieldVal, it will try to use the device unit and range in XD_scale. You can also need to change the channel type to be AI Analog channel only. This will prevent Hart passthrough and if you have AMS Device Manager, AMS Device Manager will not be able to talk to the device anymore. You will lose any alerts, configuration, and other Device Manager capabilities.

  I prefer the first option installing the Device DD and use the FieldVal_pct for control. This will allow Hart capabilities into Device Manager.

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• MAITY_TRIDIP

  

  • 1 Sep 2025 7:20 AM

  You may try in this way by configuring specific I/O card channel as Analog Input Channel rather than Hart Analog Input Channel. In module level configure IO_IN : XXXXX(TAG NAME)/FIELD_VAL_PCT,  XD_SCALE: "4.0 to 20 mA", OUT_SCALE : value as per process defined. Also configure other parameters as required.

  In this method you will be unable to configure device using AMS but may get the field value in a format of 4.0 to 20.0 mA.

  

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