WL Communication-capable Circuit Breaker
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WL Selection and Application Guide • 2005
WL Circuit Breaker
BDA as Local WL Circuit Breaker
Interface (or BDA Plus)
In this mode the BDA is used as the
local interface to the WL Breaker by
temporarily connecting it directly to
the ETU.
With a single BDA you can configure
all WL Circuit Breakers in a system
one after another and store the
configuration data on a notebook
for further processing. The BDA can
also be used to read out all diagnostic
data of the circuit breaker.
An additional class 2, 24V DC power
supply is necessary to power the
BDA should the WL Breaker not
be supplied with auxiliary power
(24V DC supply on the CubicleBUS).
Breaker Data Adapter
BDA Plus as Interface to the Ethernet
With the BDA Plus, it is possible to
access the circuit breaker data over
a 10-Base T Ethernet connection.
Circuit breaker data is delivered to a
PC formatted in dynamic HTML
web pages. If it is desired to display
data from more than one breaker is
a lineup of switchgear “24/7” over
a local area network or Intranet, a
BDA Plus is required for each WL
Breaker, and each BDA Plus needs
its own unique IP address. Each
individual breaker can be accessed
by entering the BDA-specific IP
address in the address line of the
browser. Settings via the BDA and
BDA Plus are password protected to
protect against unauthorized
access.
When placed behind a correctly
configured firewall, the BDA can
be accessed from anywhere on
Earth via the Internet.
WL_SA_sec 2-3.qxd 2/7/05 2:20 PM Page 8
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