CPU Bus Units handle special I/O and communications needs to achieve advanced position control, motion control, and network communications.
There are 3 products of CPU Bus Units.
CS-series EtherNet/IP Unit
CS1W-EIP21 / EIP21S
EtherNet/IP unit with tag data link capacity of 180,000 words or more
SYSMAC CS-series Controller Link Units
CS1W-CLK
New Controller Link Units, Now with 4,000 Send Words
CS-series FL-net Unit
CS1W-FLN22
Connect to Multivendor Controller Networks