Emerson Micro Motion 9739 MVD Configuration And Use Manual page 95

Configuration and Use Manual
MMI-20016855
Important
The service port clips on the user interface of the transmitter are directly connected to the RS-485 terminals
(26 and 27). If you wire the transmitter for RS-485 digital communications, you cannot use the service port
clips for communication with the transmitter.
6.7.1 Configure HART/Bell 202 communications
HART/Bell 202 communications parameters support HART communications with the transmitter's primary
mA terminals over a HART/Bell 202 network.
Configure basic HART parameters
Basic HART parameters include the HART address, HART tags, and the operation of the primary mA Output.
HART/Bell 202 communications parameters support HART communication with the transmitter's primary mA
terminals over a HART/Bell 202 network. The HART/Bell 202 communications parameters include:
• HART Address (Polling Address)
• mA Output Action
• Burst Parameters (optional)
• HART Variables (optional)
Procedure
1. Set HART Address to a value that is unique on your network.
• Default: 0
• Range: 0 to 15
Tip
• The default address is typically used unless you are in a multidrop environment.
• Devices using HART protocol to communicate with the transmitter may use either HART Address or
HART Tag (Software Tag) to identify the transmitter. Configure either or both, as required by your
other HART devices.
2. Ensure that mA Output Action is configured appropriately.
Option
Enabled (Live)
Disabled (Fixed)
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
Output Action. This is designed to make it easier to configure the transmitter for legacy behavior.
Always verify mA Output Action after setting HART Address.
Configuration and Use Manual
Description
The primary mA Output reports process data as configured.
The primary mA Output is fixed at 4 mA and does not report process data.
Integrate the meter with the control system
June 2019
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