41
Reference Manual
00809-0100-4001, Rev JA
Section 3: Configuration
November 2012
3.3.2
Wiring diagrams
Connect the equipment as shown in
for 4-20 mA HART or
for 1-5 Vdc
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)
24 Vdc
Supply
R
L
250
Current
Meter
6-14 Vdc
Supply
Voltmeter
Содержание Rosemount 3051
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