Wiring Diagrams - Emerson Rosemount 3051 Reference Manual

Reference Manual
00809-0100-4001, Rev JA
3.3.2

Wiring diagrams

Connect the equipment as shown in
HART Low Power. To ensure successful communication, a resistance of at least 250 ohms must
be present between the Field Communicator loop connection and the power supply. The Field
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 Field 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-compatible device and
indicate when the connection is made. If the Field Communicator or AMS Device Manager fail to
connect, it indicates that no device was found. If this occurs, refer to
Figure 3-1. Wiring (4–20 mA)
Figure 3-2. Wiring (Low-Power)
Configuration
Figure 3-1 for 4-20 mA HART or
Voltmeter
Section 3: Configuration
November 2012
Figure 3-2 for 1-5 Vdc
Section 5: Troubleshooting.
24 Vdc
Current
Supply
Meter
250
R
L
6-14 Vdc
Supply
41