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Lenze · Controller-based Automation - Visualisation · System Manual · DMS 1.5 EN · 04/2014 · TD17 27

4 System description

4.2 System components

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4.2.4.1 Direct access to the field devices

• The controller and the IPC (Visu) access the fieldbus independently of each other.

• The visualisation (Visu) can access the parameters of the field devices and the parameters of the

controller.

• Depending on the bus system used, several bus masters that are independent of each other can

be used.

• The visualisation may impact the real-time capability of the bus. Therefore this configuration is

only suitable for Motion systems to a limited extent. (It also depends on the bus system used)

Direct access to field devices is possible for the following bus systems:

•CANopen

Details regarding the suitability of the respective field devices can be found here:

Network topologies

( 32)

 Note!

• Direct access to the field devices connected to the fieldbus ensures a maximum

independence of the two systems, but is rarely reasonable in practical operation.

• The configuration with independent control and visualisation systems is only

recommended for systems without

a Lenze control system!

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Lenze Controller-based Automation Manual do Utilizador Página 27