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4 System description

4.2 System components

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

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4.2.4.2 Access to the control system and the field devices connected

• When using the Lenze control technology, the visualisation can directly access the field devices

without any further impact, using the Industrial PC as gateway. When different control systems

are used, this is usually not possible. Therefore it is recommended to only use data of the

controller.

• To display field device data in the visualisation, the controller must import these data cyclically

and transfer them to a transfer section (e.g. a data block) which is only accessed by the

visualisation. This ensures field device data access without any further effects.

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Lenze Controller-based Automation Manual do Utilizador Página 28