9 Configure digital communications
9.1 Configure HART communications
HART communications parameters support HART communications with the transmitter on a Bell 202 physical
layer (Channel A).
9.1.1 Configure basic HART parameters
Display Menu > Configuration > Time/Date/Tag
ProLink III Device Tools > Configuration > Communications > Communications (HART)
Field Communicator Configure > Manual Setup > HART > Communications
Basic HART parameters include the HART address, HART tags, and the operation of the primary mA output.
Procedure
1. Set HART Address to a value that is unique on your network.
• Default: 0
• Range: 0 to 63
Tip
• The default address is typically used unless you are a multidrop environment.
• Devices using HART protocol to communicate with the transmitter may use either HART Address,
HART Tag, or HART Long Tag to identify the transmitter. Configure any or all, as required by your
other HART devices.
2. Set HART Tag to a value that is unique on your network.
3. Set HART Long Tag to a value that is unique on your network.
HART Long Tag is supported only by HART 7. If you are using HART 5, you cannot use HART Long Tag
to communicate with the transmitter.
4. Ensure that mA Output Action is configured appropriately.
Option
Description
Enabled (Live) The primary mA output reports process data as configured. This is the
appropriate setting for most applications.
Disabled (Fixed) The primary mA output is fixed at 4 mA and does not report process data.
Important
If you use ProLink III to set HART Address to 0, the program automatically enables mA Output Action.
If you use ProLink III to set HART Address to any other value, the program automatically disables mA
Configuration and Use Manual Configure digital communications
MMI-20048166 April 2019
Configuration and Use Manual 109
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