Lenze ECSDAxxx - Manual (Page 126)

Electrical installation
Wiring of system bus (CAN)
5
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126 EDKCSDX064 DE/EN/FR 3.0
5.4 Wiring of system bus (CAN)
)
Note!
System bus (CAN)
The ECSxA... axis module can communicate with a higher−level host
system (PLC) or further controllers via both CAN interfaces (X4 or
X14).
MotionBus (CAN)
The "MotionBus (CAN)" term expresses the functionality of the CAN
interface X4 in case of ECSxS/P/M... axis modules, where
communication takes place using a higher−level host system (PLC) or
further controllers exclusively via the X4 interface. Interface X14
(CAN−AUX) is exclusively used for parameter setting and
diagnostics.