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Client/Server
& Shared Processing
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TOPKAPI NETWORK version offers very large
prospects as for the use of SCADA software under Windows environment. As easy to
use as the stand alone version, it provides distributed processing and the
possibility to access a single application from several
client computers.
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The network SERVER
computers assume the functions of data acquisition and processing, historical
storage, viewing and command (MMI). The network client
computers only assume the MMI functions. Any TOPKAPI SERVER computer includes
the client functions (access to another TOPKAPI
server application).
The network version brings:
more power as
data acquisition and processing are distributed : each computer assumes the
scanning and calculation of data incorporated in local spreadsheets.
more comfort,
during operation as well as configuration : whichever is the computer used, the
same information is accessible without any extra
parameterizing; no data have to be duplicated, they are shared. One may
also assign a specific area of the plant to one computer.
more operating
easiness : operators are free to monitor any part of the plant and issue
any command from any computer as far as they are entitled to; the displayed
information is fitted to their requirements (mimic display, graph trends, events
logger with user formatted messages, filters, ...)
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Specifications
Distributed acquisition: each acquisition
computer behaves as a data server of the acquired data.
Processing:
performed the same way as for the basic version of TOPKAPI ; data acquired by an
other unit may be included in TOPKAPI 's spreadsheet and thus become a local
variable. A distributed application can be configured on one station as a unique
application : shared processing, see Redundancy.
Distributed items:
the distributed items do not have to be redefined for each client; they include
mimic display (viewing and command)
with incorporated graph trends.
worksheets (viewing and command)
logs with user defined display,
filters, merging
data issued from connected systems (PLCs,
...)
Network communication is optimized so that it
is possible to establish remote connections throughout modems and telephone
network.
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Hardware
PC with MS-Windows 95, 98 NT, 2000 or higher, 2
to 32 computers assuming distributed processing, and any number of client units
supported by the network
Network: any TCP-IP compatible
network
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