Environmental Engineering Reference
In-Depth Information
Figure 3. Central part and peripheral equipment of I&C system
• Generation and output of control signals
to the actuating ield devices and signals
to the remote HMI-devices, located in the
main and emergency control rooms.
• Continuous monitoring (diagnostics) of
the technical state of own parts, conjugate
peripheral devices, connecting lines and
data transmission channels.
• Archiving, display, recording of current
and retrospective information and diagnos-
tics result.
SHC is composed of purchased electric
and electronic products of general application
and devices of own production, as a rule, not
independently operated, which are installed in
the manufacturing facility in typical supporting
structures (shells) in accordance with engineer-
ing documentation of SHC. Before delivering to
the customer, the manufacturer performs a full
inspection of SHC operation with emulators of
peripheral equipment and on the basis of results
confirms compliance of supplied SHC with re-
quirements of current regulations, rules, standards
and the specification, agreed with the customer.
Additional inspection (preoperational tests) of
SHC is performed on the operating place before
integration with peripheral equipment of I&C
Separation of SHC as independent compo-
nents in composition of I&C systems is due to
significant differences between these concepts
described further.
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