Echelon Mini EVK - Manual (Page 32)

LED on the MiniGizmo attached to the evaluation board running the
MGDemo application will activate or de-activate each time the MGSwitch
MiniGizmo sends an update.
In addition, the MGDemo application implements LED1 – LED4 as
simple lights that cannot be dimmed. These LEDs will be illuminated
whenever the lighting level on the MGSwitch evaluation board is more
than zero.
You can remove an evaluation board running the MGSwitch or MGLight
application from a connection by pressing and holding the device’s Service button
until the Reset light blinks (approximately 10 seconds). To remove an evaluation
board running the MGDemo application from a connection, press and hold the
Connect button for the connection for approximately 10 seconds.
MGDemo Example Application
You can use the MGDemo example application to demonstrate how to use Neuron
C to interface with I/O hardware, how to use network variables in Neuron C to
communicate on a L ON W ORKS network, and how to use the ISI library to install
devices on a L ON W ORKS network. You can use the MGDemo application to
interoperate with evaluation boards running the MGSwitch, MGLight, and
MGKeyboard applications, as well as with other 3150 EVBs running the
MGDemo application. In addition, you can use the Monitoring & Control
Example Application to monitor a 3150 EVB running the MGDemo application.
The MGDemo example application implements three types of I/O:
• A temperature sensor reads the local temperature, and stores this data in a
pair of output network variables.
• A piezo buzzer can be controlled with a pair of input network variables.
• Four switch/light pairs implement a switch that is hard-wired to a local light,
where each pair may be connected to remote switches, remote lights, or
remote switch/light pairs, on other devices.
The four pairs consist of one switch and one light each. Each switch is
implemented with a SFPTclosedLoopSensor functional block, and each light
is implemented with a SFPTclosedLoopActuator functional block. When you
use the MGDemo example application in a self-installed environment, each
pair is coupled and can only be connected as one atomic unit. That is, each
LED1 – LED4 light emulates a light bulb that is physically connected to the
corresponding SW1 – SW4 switch, while remote switches or remote lights (or
remote switch/light pairs) can be added to extend the functionality to a
lighting system. When you use the MGDemo example application in a
managed environment, you can independently connect each of the switch and
light functional blocks, demonstrating the additional flexibility provided in
managed networks. For example, you can use the MGDemo example
application with the LonMaker tool and connect each of the eight individual
functional blocks independently from each other.
To use the MGDemo application, follow these steps:
1. Start the Mini Application, and load the MGDemo application into one or
more of the 3150 EVBs as described in Chapter 2, Using the Mini
Application (this application will not run in a 3120 EVB). The evaluation
26 Mini EVK User’s Guide