The CJ2H-CPU66-EIP: Expandable to 40 modules across 3 racks, this CPU handles significant I/O counts without needing a second controller.
The 352K word memory and 150,000 step program capacity mean you can store complex motion, vision, or recipe logic without hitting a ceiling. The 40-module expansion lets you add remote I/O or specialty slices via the backplane — no second master required. Built-in EtherNet/IP handles peer-to-peer and SCADA connections; the RS-232C port runs CompoWay/F or Modbus for serial devices, and USB gives you a quick programming connection. CX-One software covers configuration and ladder logic. Battery backup retains the program and data through power loss — no battery, no hold-up, so factor replacement into your PM schedule.