Device network configuration. Rosemount Smart Wireless THUM™ Adapter

Reference Manual

00809-0100-4075, Rev CB

Configuration

July 2017

Figure 2-2. THUM Adapter Only, Powered by a 24 V Power Supply with 1200 Ohm Resistor To Limit

Current to 20 mA

THUM Adapter

Green

Red

Black

White

Yellow

Ground

1200

Ohm

Resistor

+

-

24V

Power

Supply

HART MODEM

2.5

2.5.1

2.5.2

The 1200 Ohm resistor should be adequately rated for the application (3 W minimum).

Device network configuration

Join device to network

Fast Keys 2, 1, 1

In order to communicate with the Emerson Wireless Gateway, and ultimately the Host System, the

THUM must be configured to communicate over the wireless network. This step is the wireless equivalent of connecting wires from a transmitter to the host system.

1. From the Home screen, select 2: Configure.

2. Select 1: Guided Setup .

3. Select 1: Join Device to Network .

Using a field communicator or AMS Device Manager, enter the Network ID and Join Key so that they match the Network ID and Join Key of the Gateway and other devices in the network. If the Network ID and Join Key are not identical to those set in the Gateway, the THUM Adapter will not communicate 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.

Configure update rate

Fast Keys 2, 1, 2

The Update Rate is the frequency at which a new measurement is taken and transmitted over the wireless network. This by default is one minute. This may be changed at commissioning, or at any time via AMS Wireless Configurator. The Update Rate is user selectable from eight seconds to 60 minutes.

1. From the Home screen, select 2: Configure .

2. Select 1: Guided Setup .

3. Select 2: Configure Update Rate .

Configuration 7