Lenze Controller-based Automation - Manual (Page 33)

Lenze · Controller-based Automation - Visualisation · System Manual · DMS 1.5 EN · 04/2014 · TD17
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4 System description
4.3 Network topologies
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
 Stand-alone application ( 16)
 Integrated control system ( 17)
Remote access
Remote access allows you to separate the control system and visualisation on physically separated
IPCs. The system structure is basically similar to a Client/server system ( 18) .
• Remote access may be reasonable if a control system runs on a control cabinet PC, but no
monitor is available. In contrast to the client/server system, it is not possible to implement
several operator terminals.
• Depending on the fieldbus, direct drivers (optimised for remote access) or remote-capable OPC
servers can be used.
 Channels ( 32)
Direct drivers... OPC servers...
• are contained in the scope of supply of the
»VisiWinNET®« development packages.
• are transferred from the Engineering PC to the
Industrial PC when the visualisation application is
downloaded.
• are specially tailored to »VisiWinNET®« and can only
be used for this software program.
• can be universally used and offer an open interface.
Like this, it is basically possible to integrate other
control or bus systems into »VisiWinNET®« if a
suitable OPC server is available.
• usually must be installed separately.