consoles or units. The MCS consoles communicate with
the necessary information and the program to perform
each other through the AN/USQ-82 DMS only.
the processor's assigned tasks. The RAM provides
temporary storage of processed data for final output to
S o m e co m m a n d a n d s t a t u s c o m m u n i c a t i o n s
the bell and data logger.
b e t w e e n MCS equipment and selected peripheral
devices do not use the DMS. For example, the EPCC
I/O UNIT.-- The I/O unit consists of a set of cards
uses electrical wiring to control and monitor the ship's
that provides the interface between the processor and all
service gas turbine generators (SSGTGs).
p e r i p h e r a l s or devices. These devices include
multiplexer, scanners, timers, and loggers. In this unit,
CONSOLES AND EQUIPMENT
analog data is converted to digital data and routed
directly to the digital multiplexer through the I/O buffer
The MCS equipment group consists of six major
and into the processor. The processor outputs the data
control consoles, one multipanel unit, and one remote
that are routed to the panels and external devices. Digital
display. The electrical and electronic equipment is
data outputs from the processor are also routed to the
installed on the panels or within the console or chassis.
bell and data logger.
Each console is self-contained with power supplies and
cooling fans.
Processor Maintenance
The system also provides monitoring features that
include display of equipment status, annunciation of
The processor in the engineering plant control
abnormal conditions, and printed records of major
system has a maintenance panel. This panel is located
behind the EPCC and propulsion control console (PCC)
engineering plant parameters. A diagram of the MCS is
shown in figure 3-3.
below the alarm backup override panel. The processor
maintenance panel enables the operator to check the
The MCS operator equipment is located within six
condition of the processor circuitry by observing the
spaces of the ship. These spaces are the MER, CCS,
sequence of the instruction execution. By manipulating
combat information center (CIC), pilothouse, and repair
the various controls, you, the GSE, can also create
station No. 2.
diagnostic programs to isolate problem areas of the
computer system. You have the option to stop, run, or
CCS
single step the processor. You also can enter data and
address bits from the maintenance panel.
The CCS is the main operating station on the
DDG-51 class ship. Much of the engineering plant
For a more detailed description of the processors
machinery can be controlled and monitored from this
and the tests required to maintain engineering plant
s t a t i o n . The MCS equipment located in the CCS
control system equipment, refer to the appropriate
includes the propulsion and auxiliary machinery control
technical manuals. Let's now take a look at the control
console (PACC), the electric plant control console
system used on DDG-51 class ships.
(EPCC), the damage control console (DCC), and the
engineering officer of the watch/logging unit
MACHINERY CONTROL SYSTEM
(EOOW/LU).
(DDG-51 CLASS SHIPS)
CIC
The machinery control system (MCS) is found on
the relatively new DDG-51 class ships. The MCS is an
The CIC's controllable plasma display unit (PDU)
automated electronic control and monitoring system
displays the data provided by the EOOW/LU console
that uses six AN/UYK-44(V) console computers. These
computer. A keyboard is provided to allow the operator
computers communicate with each other over the data
to select required display information. The CIC PDU
m u l t i p l e x system (DMS). The DMS is a modular
will not generate audible alarms.
communication system.
Pilothouse
MONITORING AND CONTROL FEATURES
The pilothouse MCS equipment consists of a
The MCS controls and monitors the propulsion
multicomponent bridge control unit (BCU). Throttle
p l a n t , electric plant, propulsion and independent
and pitch commands to each shaft are controlled from
auxiliaries, and damage control system through seven
the bridge by a programmed control lever on the throttle
3-7
