Industrial controller
July 1st 2007 Building projects for the
London Olympics are
driving demand for
aggregates through the
roof, dredger captains need
to discharge their cargos
efficiently so that they can
get back out to sea without
missing a tide. Remote
diagnostics developed by
Barwits Control Systems for
United Marine Dredging
(UMD) are helping with this
Olympian effort.
The whole control
system, which extends
throughout the full length of
the ship is based on a
single Mitsubishi Q series
PLC (programmable logic
controller).The Q is
designed to offer a high
level redundancy for
system-critical applications
and uses dual CPUs, power
supplies and bases. It
combines out of the box
system building using
standard components with
customisation by parameter
setting. It is configured for
total data tracking and
extensive physical
redundancy so that high
system availability can be
guaranteed.Configured with
the Q on the dredger
system over a remote i/o
network are three Mitsubishi
E1151 HMIs (human
machine interfaces) and a
GPRS remote
communications unit. More articles from Mitsubishi Electric Europe: | 
