Starting the connection broker, Ee starting the, Connection broker – Echelon OpenLDV User Manual

Page 143

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OpenLDV Programmer’s Guide

135

installing the software does not return the default values to these

profiles. However, the xDriver Profile Editor allows you to restore any

profile to its default value.

Install your profiles with temporary Registry entries that are overwritten

each time the software is installed. In this case, the default values would

be restored each time the software is installed, and all changes that were

configured by the user since the last installation would be lost.

After you create a profile to use your custom lookup extension component and

(optionally) start the Connection Broker, you can begin using OpenLDV or LNS

applications (such as the LonMaker Integration Tool) to access the networks that

you will use with xDriver.
Alternatively, you can begin creating LNS applications that use xDriver. See

Chapter 7, LNS Programming with xDriver, on page 137, for programming

samples that can assist you in creating these new applications.

Starting the Connection Broker

The Connection Broker must be running for xDriver to receive uplink session

requests. However, it is not required for downlink sessions.
The Connection Broker automatically stops if there are no profiles with uplink

session handling enabled. In addition, the Connection Broker must be stopped

and restarted each time uplink session handling for a profile is enabled or

disabled.
The Connection Broker runs as an interactive service, which allows your

applications that use the Connection Broker to display relevant dialogs for user

interaction. However, any user dialogs are displayed in a separate Windows

desktop from the one the user is logged into, so that a user might not reply to

these dialogs. Thus, an uplink application should use an interface that does not

require user interaction.
To start the Connection Broker, perform the following tasks:

1. Open the Services administrative control panel applet:

Windows 7: Control Panel → System and Security → Administrative

Tools → Services

Windows XP: Control Panel → Administrative Tools → Services

2. Locate the entry for the Echelon xDriver Connection Broker, as

shown in Figure 36 on page 136.

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