Reference Manual
00809-0100-0775, Rev AA
March 2009 Smart Wireless THUM Adapter
Connections The THUM is compatible with a number of sub-devices. See section 3 for details on wiring the
THUM to different types of sub-devices.
The THUM will receive any HART communication from a handheld Field Communicator, or AMS®.
In order for the THUM to receive HART communication the sub-device must be powered. When us-
ing a Field communicator polling must be turned on, the default HART address for the THUM is ad-
dress 15. When using a Field Communicator, any configuration changes must be sent to the transmit-
ter using the Send key (F2). AMS configuration changes are implemented when the Apply button is
clicked.
AMS® Wireless Configurator
AMS is capable of connecting to devices directly, using a HART modem, or with the Gateway. When
configuring on the bench with a HART modem, double click the device icon, then choose the Config-
ure/Setup tab (or right click and select Configure/Setup). Configure the device settings using the Direct
Connection menu. When configuring with the Gateway, double click the device icon then choose the
Configure/Setup tab (or right click and select Configure/Setup). Configure the device settings using the
Wireless Connection menu. To check or change sensor configuration using a 375 Field Communicator,
enter the following Fast Key Sequence: 2, 1, 3.
To communicate with the Gateway, and ultimately the Information System, the transmitter must be
configured to communicate with the wireless network. Using a Field Communicator or AMS, enter the
Network ID and Join Key so they match the Network ID and Join Key of the Gateway and the other
devices in the network. If the Network ID and Join Key are not identical, the transmitter will not com-
municate with the network. The Network ID and Join Key may be obtained from the Gateway on the
Setup>Network>Settings page on the web server. Using a 375 Field Communicator, the Network ID
can be configured by entering the Fast Key Sequence: 2, 2, 1, 1. The Join Key can also be configured
using a 375 Field Communicator with the Fast Key Sequence: 2, 2, 1, 2.
The final device network configuration piece is the Update Rate. There are three update rates for the
THUM. Each Update Rate can be configured independently of the other two. One of the Updates is
for THUM specific information such as THUM temperature and communication status. The other two
Update Rates are for sub-device information. The information that is sent for the sub-device and the
frequency that it is sent can all be changed at commissioning or at any other time. At default the Up-
date Rate for all three Updates is 1 minute. The Updates can be changed using AMS or a 375 Field
Communicator.
THUM Configuration
DEVICE NETWORK
CONFIGURATION
