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Lenze · Controller-based Automation · System Manual · DMS 1.4 EN · 04/2014 · TD17 49

5 System architecture

5.2 Online connection via the gateway function of the controller via CAN/EtherCAT

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Advantage Disadvantage

A simple connection without fieldbus-specific adapters

is possible.

The controller ...

• s the master for the fieldbus.

• controls the real-time capability of the bus.

• controls the access to the fieldbus. This ensures that

the fieldbus is always available for the control if

required.

• The gateway function can only be used after an

executable PLC program (with the »PLC Designer«)

has been loaded and started in the controller..

• The communication speed between the Engineering

PC and the controller is lower than in a direct

connection.

Direct connection

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Lenze Controller-based Automation Manual de usuario Pagina 49