Lenze EtherCAT Controller-based Automation - Manual (Page 106)

8 Mixed operation - EtherCAT with other bus systems
106
Lenze · Controller-based Automation · EtherCAT® Communication Manual · DMS 6.4 EN · 04/2014 · TD17
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
8 Mixed operation - EtherCAT with other bus systems
Within the Lenze Controller-based Automation arrangement, the EtherCAT bus system can be
combined with CANopen, PROFIBUS or PROFINET. This makes senses if only some of the field devices
are available for the same bus system or if a Motion bus is needed parallel to the logic bus
(CANopen, PROFIBUS, PROFINET).

Note!
Lenze i700 servo inverter
In the case of the i700 servo inverter, fieldbus communication only takes place via
EtherCAT. The servo inverter does not have any CANopen, PROFIBUS or PROFINET
interfaces.
Mixed operation - EtherCAT with CANopen
• Due to the requirements regarding the real time behaviour of the fieldbus system and
due to its limited transfer capacity, it is useful to operate Logic and Motion devices on
separate field bus lines if CANopen is used – on a logic bus and a motion bus.
• In mixed operation, ensure that the CAN Motion task has the highest priority. The task
assigned to the EtherCAT bus should have the second-highest priority. The tasks
assigned to the Logic bus systems should be configured with a lower priority.