Emerson Rosemount Smart Wireless THUM, Reference Manual

Page: 14 / 60

Reference Manual
00809-0100-4075, Rev BA
October 2010
Smart Wireless THUM Adapter
2-2
CONNECTIONS
Section 2 details wiring the THUM Adapter to the different types of compatible
sub-devices.
DEVICE SENSOR
CONFIGURATION
The THUM Adapter, attached to a powered sub-device, receives HART
®
communication from a handheld Field Communicator or AMS
®
.
Field Communicator
In order to communicate with the THUM Adapter, polling must be activated on
the Field Communicator. The default address for the THUM Adapter is 63.
Also, note that any configuration changes must be sent to the transmitter
using the
Send key (F2).
AMS Wireless Configurator
AMS is capable of connecting devices directly using a HART modem or the
Gateway. For configuring through AMS Wireless Configurator, double click
the device icon and choose the Configure/Setup tab. AMS configuration
changes are implemented when the
Apply button is selected.
CONNECTION
DIAGRAMS
Bench Hook-up
Connect the bench equipment as shown in either Figure 2-1 or Figure 2-2,
and turn on the Field Communicator by pressing the
ON/OFF key or log into
AMS. The Field Communicator or AMS will search for a HART-compatible
device and indicate when the connection is made. If the Field Communicator
or AMS fail to connect, it indicates that no device was found. If this occurs,
refer to Section 4: Commissioning.
Field Hook-Up
Section 2: Configuration details the field hook-up requirements in Figure 2-1
and Figure 2-2.
Figure 2-1. THUM Adapter Only,
Powered by a Current Source
Ground
-
20 mA
Current
Source
HART
Modem
THUM Adapter
Green
Red
Black
White
Yellow
+
250 Ohm Resistor not
required, but may be
used to verify current