Overview
The CP1LL20DRA.1 is an Omron CP1-series compact PLC with 12 digital inputs rated for 24 VDC and 8 relay outputs rated for 2 A per point. It offers a program capacity of 5000 steps and 10000 words of data memory, with a scan time of 400 µs. The unit runs on 100 VAC, mounts on a DIN rail, and is rated IP20 for in-cabinet use. Programming is via USB using Ladder Diagram or Structured Text, and the CPU supports expansion modules for additional I/O.
Function & operation
The CP1LL20DRA.1 executes user logic at a scan time of 400 µs, suitable for discrete machine control and simple process sequences. Its 5000-step program capacity and 10000-word data memory handle moderate-sized applications with recipe storage or shift registers. The 12 digital inputs accept 24 VDC signals from sensors, pushbuttons, or limit switches; the 8 relay outputs switch up to 2 A each, making them suitable for direct control of contactors, solenoids, and indicator lamps without external interposing relays. Relay outputs are inherently isolated and handle both AC and DC loads within the rating.
Applications
This PLC is typically deployed in standalone machine control for packaging, material handling, small assembly stations, and OEM equipment where a compact footprint and relay outputs are sufficient. The 100 VAC supply suits installations in regions with line-to-neutral voltages near 100 V. The USB programming interface simplifies field changes and commissioning without requiring a dedicated network.