Chapter 3 Configuration; Overview; Commissioning On The Bench With Hart - Emerson Rosemount 2051 Reference Manual

Reference Manual
00809-0100-4101
3 Configuration
3.1

Overview

This section contains information on commissioning and tasks that should be performed
on the bench prior to installation.
HART
configuration functions. For convenience, HART Communicator Fast Key sequences are
labeled "Fast Keys" for each software function below the appropriate headings.
3.2

Commissioning on the bench with HART

Commissioning consists of testing the transmitter and verifying transmitter configuration
data. The transmitter can be commissioned either before or after installation.
Commissioning the transmitter on the bench before installation using a Field
Communicator or AMS Device Manager ensures that all transmitter components are in
working order.
Note
To commission on the bench, required equipment includes: a power supply, a milliamp
meter, and a HART
Figure 3-2
ohms must be present between the HART Communicator loop connection and the power
supply. Connect the HART Communicator leads to the terminals labeled "COMM" on the
terminal block.
When using a Field Communicator, any configuration changes made must be sent to the
transmitter by using the Send key (F2). AMS Device Manger configuration changes are
implemented when the Apply button is selected.
For more information on the Field Communicator, see Emerson.com/global. AMS Device
Manger help can be found in the AMS Device Manager online guides within the AMS
system.
3.2.1 Setting the loop to Manual
Whenever sending or requesting data that would disrupt the loop or change the output
of the transmitter, set the process application loop to Manual. The Field Communicator
or AMS Device Manager will prompt you to set the loop to Manual when necessary.
Acknowledging this prompt does not set the loop to Manual. The prompt is only a
reminder; set the loop to Manual as a separate operation.
3.2.2 Wiring diagrams
Connect the equipment as shown in
Vdc HART Low Power. To ensure successful communication, a resistance of at least 250
ohms must be present between the HART Communicator loop connection and the power
supply. The HART Communicator or AMS Device Manager may be connected at "COMM"
on the transmitter terminal block or across the load resistor. Connecting across the "TEST"
terminals will prevent successful communication for 4–20 mA HART output.
Turn on the HART Communicator by pressing the ON/OFF key or log into AMS Device
Manager. The Field Communicator or AMS Device Manager will search for a HART-
Reference Manual
Communicator and AMS Device Manager instructions are given to perform
®
Communicator or AMS Device Manager. Wire equipment as shown in
®
and Figure 3-2. To ensure successful communication, a resistance of at least 250
Figure 3-1 for 4–20 mA HART
Configuration
March 2024
or Figure 3-2 for 1–5
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