ECI0064 Network IO Control Card User Manual V1.5
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Wiring Note:
When connecting multiple ZIO expansion modules on the CAN bus, a 120-ohm
resistor needs to be connected in parallel between the CANL and CANH terminals.
Please use STP to ensure communication quality and the shield layer is connected
to ground.
Please use the same power supply for internal powers of controller and expansion
module.
4.2.
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.
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