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7 PARAMETER SETTING
7.1 Network Configuration Setting
Network topology setting
When using the I/O module in CC-Link IE TSN, set the network topology setting as follows.
*1 Check that the firmware versions of all I/O modules on the network are "03" or later before setting the ring topology. When an I/O module
with the firmware version of "02" or earlier is on the network, perform a firmware update.
If an I/O module with the firmware version of "02" or earlier is connected to the network, data link cannot be performed.
Communication mode
Although the unicast mode and multicast mode are available for communication mode, I/O module operation varies
depending on the firmware version if an Ethernet device (or a remote station of Authentication Class A) is connected to the I/
O module in multicast mode.
Firmware version of I/O module Setting item
"03" or later • Line topology, star topology, or mixture of star topology and line topology
• Ring topology
*1
"02" or earlier Line topology, star topology, or mixture of star topology and line topology (fixed)
Firmware version of I/O module Description
"03" or later Cyclic frames of multicast are not relayed via an Ethernet device (or a remote station of
Authentication Class A) connected to an I/O module.
"02" or earlier Cyclic frames of multicast are relayed via an Ethernet device (or a remote station of
Authentication Class A) connected to an I/O module.
Because of this, the Ethernet device (or the remote station of Authentication Class A) receives
unnecessary cyclic frames, and thus the I/O module may not operate properly.
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