Breaker Data Adapter (BDA)
BDA in Offline Mode (or BDA
Plus
)
In offline mode, the BDA or BDA
Plus
is only connected to a laptop
(represents all input/output devices).
All the required parameters can be
set in this operating mode and
saved for later use (download to
the circuit breakers). No power
is supplied via the laptop COM
interface, which means that an
additional power supply unit (24V
DC) must be connected to the BDA.
BDA as a Hand-Held Device (or
BDA
Plus
)
As a hand-held device, the BDA
is operated by connecting it
temporarily to the appropriate
WL trip unit interface.
All circuit breakers in a system can
be parameterized one after the
other using just one BDA, and the
parameter data saved to a laptop for
further processing. In addition, all
the diagnostic data of the circuit
breaker can be read via the BDA.
An additional 24V DC power supply
is required if the circuit breaker is
not yet supplied with power (e.g.
by means of an external 24V DC
source on the CubicleBUS).
4/2
WL Circuit Breaker
Graphic 4-2
In temporary mode, the BDA is normally attached using magnets.
Graphic 4-1
The BDA must be supplied externally with 24 V DC. Parameters can be set, stored,
and printed out.
WL PROFIBUS Communication and Electronic Accessories • July 2004