Overview
The CP1H-XA40DR-A is an Omron CP1H-series programmable logic controller with 40 built-in I/O points — 24 digital inputs (20 digital, 4 configurable as analog/digital), 14 relay outputs and 2 analog outputs. It runs on 100-240 VAC and supports expansion up to 320 I/O points via up to 7 modules. Program capacity is 20K steps with 32K words of data memory, and the unit includes a real-time clock, battery backup, and a USB programming port. It is an active, in-production model.
The CP1H-XA40DR-A executes ladder-diagram logic at a scan time of 700 µs, fast enough for most machine control sequences. The 20K-step program capacity and 32K-word data memory handle moderate-size applications with recipe management and data logging. Four built-in high-speed counter inputs accept 100 kHz pulse trains, and the CPU supports 4-axis positioning via pulse-train output — useful for indexing tables or conveyor registration without an add-on motion module. The analog I/O is integrated on the base unit: 4 inputs configurable as analog or digital, plus 2 analog outputs. This eliminates the need for a separate analog expansion module for applications requiring a few analog channels. Communication is via the USB port for programming and monitoring; option cards (Ethernet, serial, or fieldbus) can be added for plant networking. The real-time clock and battery backup maintain time-stamped data and program retention during power loss.
Applications
The CP1H-XA40DR-A is used in standalone machine control for packaging, material handling, assembly stations, and small process skids. Its mix of relay outputs (for inductive loads like contactors and solenoids) and analog I/O makes it a fit for applications that need both discrete and analog control in a single compact CPU.
Within Omron's CP1H family, the XA40DR-A is the variant with built-in analog I/O and relay outputs, specified by machine builders who need a few analog channels and relay switching without adding expansion modules. It sits above the CP1H-X40DR-A (digital-only inputs) and below the CP1H-XA40DT-D (transistor outputs) for applications requiring higher-speed output switching.
The CP1H-XA40DR-A is listed as active — still in current production and available through distribution. For BOM planning, this part can be sourced on standard lead times; confirm current availability via RFQ.