I/O and power — what fits the panel
The CP1E-E20DR-A carries 12 digital inputs and 8 relay outputs, enough for a standalone machine cell or a small packaging station where the I/O count is fixed at build time. Supply is 100–240 VAC, so it drops straight into a control panel fed from a standard mains transformer without needing a separate 24 VDC power supply for the CPU. Mounts on a DIN rail or directly to a chassis plate — the DIN clip is the faster install for a panel build, but the chassis holes give a vibration-resistant fit for mobile equipment.
Memory and expandability — the hard constraint
2K words of program memory is the ceiling — enough for a sequence of a few dozen rungs with timers and counters, but a motion profile or recipe table will eat that budget fast. Non-expandable means no local I/O rack or extra analog cards; the 12-in/8-out count is final. If the application needs more I/O later, the whole CPU gets swapped.
Lifecycle reality — obsolete, sourced to order
Available through independent surplus and broker channels. Quantities are lot-specific; availability and current pricing are confirmed at RFQ against the BOM line.
Approvals and compliance
Carries CE, cULus, Lloyd, and NK approvals — accepted in European, North American, and marine (Lloyd's, Nippon Kaiji Kyokai) installations.