The Omron CS1W-BI102 Programmable Logic Controller (PLC) acts as a Backplane Unit for CS1 Expansion Racks supporting 10 I/O module slots. It ensures stable expansion communication and dependable power distribution within large PLC configurations. This unit guarantees low-noise electrical performance for consistent data transfer between modules. Designed for industrial reliability, it simplifies system extension and rack alignment. Manufactured by Omron, part of the Omron Programmable Logic Controller family, available under the Omron CS1W Series.