ABB Advant Controller 450 User Manual

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You can disconnect remote units from the bus and replace them without disturbing other units or
their communication with Advant Controller 450. Communication with a reconnected unit is
resumed automatically.
MasterFieldbus operates at 2 Mbits/s.
For distances up to 25 m (82 ft.), use MasterFieldbus with twisted pair cable and without
modems. For longer distances, use modems. Both coaxial and optical types of cable are
available.
MasterFieldbus can also operate at 375 kbits/s. This speed is used, for example,
when communicating with MasterPiece 90.
For increased availability, you can duplicate the cables and modems (physical redundancy).
Figure 1-33 gives an example of a physical configuration.
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Modem
DSTC452
‘Bus controller’
CI570
TC570
Distr.
unit
Modem
DSTC454
Exp.
unit
Modem
DSTC452
Modem
DSTC452
Modem
DSTC454
Distr.
unit
Distr.
unit
Distr.
unit
Distr.
unit
Distr.
unit
Distr.
unit
Exp.
unit
Advant Controller 450
SDB
LDB
Coaxial cable
Max. 25 m
Optic cable
SDB
SDB
SDB
LDB
Max. 25 m (82 ft)
Max. 25 m (82 ft)
Max. 25 m (82 ft.)
(typ. 3000 m)
(max. 750 m)
LDB - Long-Distance Bus
SDB - Short-Distance Bus
Exp.
unit
Conn. unit
Comm. module
= Termination unit
(2460 ft.)
(82 ft)
(9842 ft.)

ABB Advant Controller 450 Specifications

General

Brand	ABB
Model	Advant Controller 450
Category	Controller
Language	English