Process
Generally
Production and order planning is comprehensive
and dependent on customer requirements as well as quality demands.
These demands are particularly managed in
cooperation with those responsible for sales and customer follow-up.
A company with several processes dependent on each other must coordinate
continuous information and supervision for high efficiency.
With continuous information and supervision the processes will be
coordinated for high efficiency.
Fundamental to high productivity and controlled
quality is the requirement that supervision and process control will be
close to the process.
The automatic functions such as startup, measurement, -and regulating
functions, in addition to general supervising and process control most
be executed principally from central a controlroom even if there
are peripheral stations.
Measurment-and regulation functions must be
decided and structured with the greatest care.
The automatic functions for starting-up the
machines are controlled by built-in electrical functions.
Program functions for the control systems could be complex to build
up and demand high functionals security: if not the persons, process or
machines will be damaged.
The information required for supervision is
received from sensors and adjustable mechanisms in the process and machinery.Such
information can also be included in the automatic functions and in the
regulating process.
A company with several process units has need
of assistance for supervision and control of the units within the following
levels:
Comprehensive
plant level:
Comprehensive production-and
order planning
Comprehensive
production level:
Coordination of information
for efficacy in processes
Superior control / regulation
of the process control level
Superior control / regulation
of the process units need of heat and electrical energy
All the levels need information from the databases
of the partial systems
Plant process control system structure
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