ABB UDD406A programmable control module
High speed of response benefits the
customer application which specifies
Sequence of Events recording (SoE)
without the cost of additional
equipment. It also enables TMR to be
used for applications requiring high
speed advanced control.
Fault Tolerant Hardware and
Software
The system is designed to continue to
operate correctly with the presence of
a major component fault and is
capable of tolerating multiple, non
concurrent faults.
Easy to Use Software –
WindowsTM
TriBuildTM configuration and
application programming and
TriCommandTM Server
(WONDERWARE© MMI interface
software) are WindowsTM compliant,
making the system easier to use for
the engineer and the operator. For
customers with existing ABB equipment
“backward compatibility” is provided
making upgrading or adding new
facilities economic to implement.
TriBuildTM and TriCommandTM Server
can be used with Windows NTTM.
Features include:
• True multitasking capability
• Strategies can be saved on-line
without halting the system operation
• Ability to upload the configuration
• Changes can be made on-line
without halting the system operation
• Bumpless changeover of hot repair
modules
• Comprehensive diagnostic displays
for ease of maintenance
Fault Tolerance and
Selective Redundancy
Improvements in the system to keep a
process plant running safely without
the nuisance of false trips have been
achieved by full diagnostic coverage
of all modules and selective
redundancy.
Processors 3–2–1–0
Input/Output Circuits 3–2–1–0 or
3–2–0

Importance of Transient
Immunity
Comprehensive physical and electrical
isolation combined with asynchronous
processors and software voting
ensures the Triguard SC300E is
immune to transient errors.
Smallest Footprint Size
The Triguard SC300E TMR offers our
customers the best utilisation of
available space. ABB have developed
“plug and play” cabinet layout
configurations that offer pre-designed
hardware for system applications.
Plug and socketed system cables make
marshalling and termination
interconnection quick and easy to
implement.