The CS1D-CPU65P is a dual-CPU-capable control logic processor from the OMRON CS1D series, built for redundant or high-availability machine control. It carries 128K Words of program memory and supports expansion up to 68 modules across 7 racks — enough for a multi-station line with distributed I/O. Communications are RS-232C and USB; the CPU mounts to a backplane, not DIN rail, so the panel layout needs the rack slot reserved. Approvals include CE, cULus, and NK (Nippon Kaiji Kyokai), covering marine and industrial safety compliance.
Backplane mounting means the CPU slides into a dedicated rack slot — no DIN-rail clips. The rack itself takes up panel width; plan for the full 7-rack footprint if you max out the 68-module capacity. Wiring to the RS-232C and USB ports is straightforward, but the backplane bus powers the CPU, so no separate 24 VDC feed to the module itself.