Chapter Iv Expansion Module; Ethercat Expansion Wiring Reference - Zmotion EIO1616 Manual

Chapter IV Expansion Module

4.1. EtherCAT Expansion Wiring Reference

EIO digital expansion module is powered by the dual power. Except the main power,
one IO power is needs connecting additionally to supply power for IO independently. Main
power and IO power both use 24V DC power.
To prevent interference, the IO power supply is separated from the main power supply.
After the EIO1616 expansion wiring is completed, each EIO expansion module does
not need to develop again. It only needs to manually configure the unique IO address and
axis address in the EtherCAT master controller, and it can be accessed after the
configuration is completed. The IO address No. is set through the bus command NODE_IO,
and the program on the controller can access the resources on the expansion module
only through the IO number.
When wiring, pay attention that EtherCAT IN is connected to the upper-level module,
and EtherCAT OUT is connected to the lower-level module. The IN and OUT ports cannot
be mixed.
EIO expansion module wiring reference example (take ZMC408SCAN as an example):
Involved number concepts in above figure are as follows: the bus-related command
parameters will use the following numbers:
Slot number (slot):
The slot number refers to the number of the bus interface on the controller, and the
EIO1616 Bus Expansion Module User Manual V1.5