The Omron CP1L-EM40DT-D is a compact PLC with 24 digital inputs and 16 solid state outputs, running on 24 VDC and featuring 32K words of memory, on-board Ethernet, and battery backup for program retention.
What the key ratings mean for your selection
The 24 digital inputs and 16 solid state outputs provide direct control. Solid state outputs handle high-frequency switching without relay wear. 32K words of memory accommodates a mid-size logic program and data tables. The battery backup retains program and data on power loss, so you don't lose configuration after a line outage. On-board Ethernet allows direct connection to a plant network or a SCADA system, and the option-card slot adds alternative fieldbus (like DeviceNet, PROFIBUS, or serial) when needed. Expandable to 3 additional modules — you can add analog I/O, temperature inputs, or extra discrete points without swapping the base unit.
How it compares in the CP1L family
The CP1L-EM30DT-D offers 18 inputs and 12 solid state outputs — a lower point count for smaller applications. If you need relay outputs instead of solid state, the CP1L-EM30DR-D (18 in, 12 relay out) is the sibling to consider. Both are in the same chassis and mounting, with identical memory and Ethernet features.
Integration and mounting
Mounts on DIN rail or chassis; no front display, so all programming and monitoring is done via CX-One software over Ethernet or USB. The backup battery is user-replaceable and extends the retention time during power-off periods. Operates at 0°C to 55°C, which covers most cabinet environments. The 24 VDC supply is standard across industrial panels — no separate power supply module needed beyond the main bus.