EMTX-SVX01G-EN 45
Configuring a Device
Defining the Discovery DSN
The discovery DSN (refer to Figure 32, p. 44) is available in both the Rover Service Tool and the
Rover Configuration Only Service Tool modes.
Setting the Domain DSN consists of selecting the Length of the domain and typing in the
hexidecimal value for the domain.
1. From the Tools menu, choose Options.
2. Click the Advanced tab (Figure 32, p. 44).
3. Define the domain length by selecting the appropriate number after Domain Length. Options
for the length are 0, 1, 3, and 6. The number you select here dictates the length (in bytes) of the
domain address below. Trane typically discovers devices on Domain Length: 0. When you
select 0 as the domain length, the Domain ID (hex): field is disabled.
4. Define the Domain ID (hex). This is the number (it is hexidecimal number) that identifies the
main LonTalk link on which devices reside for communication or discovery. When 0 is selected
for the length, the domain field is disabled. However, Rover can now install and discover
devices on any domain. The domain number you can use depends on the Domain Length
selected. The list below defines the limitations:
• 1-byte domain length addresses: 00 to FF
• 3-byte domain length addresses: 000000 to FFFFFF
• 6-byte domain length addresses: 000000000000 to FFFFFFFFFFFF
5. Defaults. Clicking on the Defaults button returns the values in both the Domain Length: and
Domain ID (hex): fields to the factory settings, which are 0 and disabled respectively.
Defining the Installation DSN
The installation DSN is available in the Rover Service Tool Only (refer to Figure 32, p. 44). Trane
typically installs devices on Domain ID (hex): 11 (Domain Length 1 and Subnet 1). However, Rover
7.0 allows you to install devices on any domain.
1. From the Tools menu, choose Options.
2. Click the Advanced tab (Figure 32, p. 44).
1. Define the Domain Length and Domain ID (hex) values as described in steps 1 and 2 above. With
the exception that Trane typically installs devices on Domain Length: 1 Domain ID (hex): 11.
2. For installation, you also need to define the Subnet ID. Each device in the domain must have
the same subnet number to communicate with each other. Numbers from 1 to 255 are valid.
3. Defaults. Clicking on the Defaults button returns the values in both the Domain Length: and
Domain ID (hex): fields to the factory settings, which are Domain Length: 1, Domain ID (hex):
11, and Subnet ID: 1.
Discovering Devices on any Domain
The Prompt for automatic domain change on service pin press check box provides a means
to discover devices that are installed on a domain that is not typically used by Trane. To discover
devices on any domain:
Note: Do not use this function while Rover is in the Active mode. Only use the Prompt for
automatic domain change on service pin press check box while in the passive mode.
1. From the Tools menu, choose Options.
2. Click the Advanced tab (Figure 32, p. 44).
3. Select the Prompt for automatic domain change on service pin press check box.
4. Go to any device on the network and press the service pin on that device (only one is required).
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