Controls News 13
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Main theme: Lean automation |
Technology
Lean automation devices with modular
integration of «classic» communication
systems. They are the bridges between
the «old stock» of traditional technology
and the lean system of a building.
With a basic lean structure, the
internal composition of automation
devices provides optimum
conditions for lean automation.
freely programmable
GenericWeb IT Interface
GenericWeb IT Interface
BACnet
Interface
Interfaces
Field levels
freely programmable
Saia
®
PCD1, 2 and 3
are lean automation devices
This configuration of devices is
not just dry theory. In practice,
it has worked very well in diverse applications all over the world.
In the Overview on page 61, you will find specific and impressive
examples from almost every domain.
Lean control/management level
In classic DDC technology (Direct Digital Control) for the automation of
buildings, logic and control is limited to the automation level. This sep-
aration ensures safer and more autonomous functioning of the equip-
ment, even independently of a PC-supported control/management level.
It is only in process technology that the control loops are also deliberately
closed via management technology. The control strategies there are so
complex and comprehensive that this is useful and necessary. The design
of computer systems for the control room is correspondingly laborious.
In the automation of infrastructure projects, an autonomous automation
level has been relied on for some time.
With lean automation devices things have gone a step further, in that
each automation device is equipped with management and control
functions. An overarching, separate control level is then just optional. In
most buildings, it can be dispensed with altogether. However, if PC-based
control/management software is used, it is easy to install and exchange.
The optimum lean situation is achieved where there is an automation
system with lean automation devices that are freely programmable and
modular.
Boundaries and barriers are broken down in the automation pyramid
itself and a natural integration is achieved into the user environment.
Without specialist software, proprietary interfaces and constantWindows
updates that cost time, nerves and money, you are one step closer to the
goal of lean automation.
This has been part of daily practice at the University Hospital in Tel Aviv
for several years.
web code en1312a
The classic automation pyramid: separate core functions
at different levels and in different devices; the levels are
sealed off from each other and the environment.
Management level
Field level
Automation level
Ideal picture: Lean automation device in the automation pyramid.
Fully integrated & transparent, even outside the automation environment.
