ZMC408SCAN Motion Controller Hardware Manual V1.5
Chapter VII Expansion Module
The controller can expand digital IO, analog IO, pulse axis and other resources
through CAN bus or EtherCAT. For details, please refer to "ZIO Expansion Card Hardware
Manual". Also, through EtherCAT bus (EIO series or ZMIO310 series vertical bus
expansion modules) expansion of these resources also can be achieved, please refer to
each EIO hardware manual for details.
7.1.
CAN Bus Expansion
ZIO series expansion modules or ZMIO310-CAN coupler with sub modules can be
used.
Connect control card to CAN bus expansion modules, when the eighth bit of the DIP
switch of the expansion module is turned to ON, which indicates that a 120 ohm resistor
has been connected, but needs to connect one 120 ohm resistor externally. When
connecting multiple CAN expansion modules, you only need to dial ON for the eighth digit
of the last expansion module, which means please do not dial bit-8 of other modules.
7.1.1.
CAN Bus Expansion Wiring
The ZIO expansion module is powered by the dual power supply. Except the main
power supply, an additional IO power supply is required to supply independent power for
IO. Both the main power supply and the IO power supply use 24V DC power supply. For
ZAIO, it only needs to connect to the main power supply.
To prevent interference, separate the IO power supply from the main power supply.
Please select the expansion module according to the requirements, and select IO
mapping or axis mapping according to the resources of the expansion module.
Wiring reference of connection between ZIO expansion module and control card and
standard wiring of CAN bus are shown as below:
