background image
Figure 4.
DGT-Utility creates the setting files for all the devices.
·TheServiceLEDflasheswhenaradioalarmconditionisdetected
·TheINLEDislitonlywhenenergizedintheeventofatrip
·TheLinkLEDilluminateswhentheradiohasestablisheda
connection
EnerVista
TM
Software
The EnerVistaTM is an industry leading software program that
simplifies every aspect of using the DGT Control. The EnerVistaTM
software not only provides all the essential tools to configure the DGT
devices, it also provides exceptional levels of security in creating the
Distributed Generation Trip network and encrypting configuration
files for download.
For ease of use, there are two versions of the DGT software dependant
upon user application. The DGT-Utility software is for the Power
Utility Company and the DGT-DG software is for the independent
power producer.
DGT-utility Software
Using the DGT-Utility software a Utility user builds a DGT network. The
software then creates encrypted data files that contain all necessary
information and settings for the DGT-R and DGT-U devices. The DGT-
Utility software also creates a DGT-D setting file to be sent to the
distributed generation owner to authorize their DGT-D device to join
the network. Only the utility can add DGT-D devices to a DGT Network.
The configuration set up is simple with an online and offline menu
available for ease of use. Configuration files are unique to each DGT
network. A quick connect button allows the user to easily connect to
the selected device.
DGT-DG Software
The Distributed Generation software allows User to upload a settings
file or get diagnostics from a DGT-D control by simply clicking on the
menu option. A quick connect button also allows the User to easily
connect to the DGT-D device.
Enervista Launchpad
Enervista Launchpad is a powerful software package that provides
Users with all the set up and support tools needed for configuring
and maintaining GE Digital Energy DGT Controls. The set up software
within Launchpad allows configuring devices in real time by
communicating using serial connection or offline by creating setting
files to be sent to devices at a later time.
Included in Launchpad is a document archiving and management
system that ensures critical documentation is up to date and
available when needed. Documents made available include:
· FAQ's
· HelpFile
· Manuals
· Brochures
· WiringDiagrams
Wireless Technology
The DGT control provides highly reliable long range communication
over up to 30 miles. The DGT uses frequency hopping spread spectrum
radios that operate in the license free spectrum between 902 and 928
MHz. The radios hop between 128 channels with a bandwidth of 130
kHz. The frequency hopping technique makes the radios extremely
resistant to interference. Frequency hopping also establishes a high
level of security because data transmission occurs on a variety of
frequencies in a random pattern. In addition, the DGT uses a 32-bit
CRC algorithm to further insure security and reliability of data.
The DGT's are able to operate in a point to multipoint configuration
and transmit digital status among themselves at extremely high
speeds. GE Digital Energy's unique wireless data transmission
technology allows transfer trip signals to be sent and received by the
end sites in 30 milliseconds.
While the DGT radios provide very robust wireless communication,
radio line of site is needed to insure maximum range and performance.
This path is achieved by mounting the DGT antenna at a suitable
height above surrounding terrain and obstructions.
LED Indicators
Each transceiver in any DGT Control has a set of LED indicators to
enable users to observe status of each device and its performance.
DGT-U: There are 11 indicators in the DGT-U transceiver
DGT-R: The DGT-R transceiver consists of 3 indicators
DGT-D: The DGT-D transceiver contains 6 indicators
Below are some of the common LED's:
·ThePowerLEDilluminateswhenpowerisappliedtotheradio
80
DGT
www.GEDigitalEnergy.com
www.GEDigitalEnergy.com
CommunicationsRG.indb 80
5/1/2009 12:36:35 PM