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Part of the Omron CP-Series Compact PLCs series — see the full model table, lifecycle status and replacement parts.

Omron CP1L-M40DR-A compact PLC — front view showing the 24 input LEDs and 16 output LEDs across the front face, with the USB Type-B mini-USB programming port and option board slot on the top

Omron CP1L-M40DR-A — 40 I/O PLC, Relay Output, AC

SKU: CP1L-M40DR-A

USD 167.00

CP1L-M compact PLC with 40 I/O points (24 inputs, 16 relay outputs), 100-240 VAC power supply, USB programming port

1-Year Warranty Full manufacturer warranty
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Product Overview

The Omron CP1L-M40DR-A is the 40-point variant of Omron's CP1L-M compact PLC family, with 24 × 24 VDC inputs, 16 × mechanical relay outputs rated 2 A / 250 VAC / 24 VDC per point, and 100-240 VAC power supply. manufactured by Omron Corporation. Hengyixin Automation stocks this controller in Xiamen and ships within 3-5 business days to most Asian, European, and North American ports.

The CP1L family has four sub-lines: CP1L-L (low-end, 5K steps, no HSC, no pulse output — limited I/O count of 14/20/30), CP1L-J (low-end equivalent, RS-232 instead of USB — discontinued), CP1L-M (medium, 10K steps, HSC up to 100 kHz on inputs, pulse-output up to 100 kHz on transistor models — discontinued 2027-06-30 — see replacement), and CP1L-EM (medium with EtherNet/IP, 10K steps, HSC, pulse output, built-in Ethernet — current production). The CP1L-M (this SKU) is the workhorse compact PLC for 2010-2025 machine designs that did not need Ethernet; CP1L-EM is the recommended replacement for new designs (since 2024).

For 32-bit CX-Programmer v9.6x or v9.7x, the CP1L-M40DR-A appears in the device list under CP1L / CP1L-M / M40DR-A.

Key Features

  • Power supply: 100-240 VAC
  • 24 inputs: 24 VDC, PNP/NPN, 3 mA min ON / 1 mA max OFF
  • 16 outputs: mechanical relay, 2 A per point, 250 VAC / 24 VDC switchable
  • 10K steps program capacity
  • SKU: CP1L-M40DR-A
  • Series: CP1L-M (medium-feature CP1L sub-line; CP1L-M40DT-D has a published 2027-06-30 production end, other variants need confirmation)
  • Voltage: 100-240 VAC

Best-Fit Applications

  • Stand-alone conveyor control in a small parts-washing station — 24 VDC sensor inputs on 0.00-0.07, 16 relay outputs driving motor.
  • Smaller injection-molding machine controller — pressure-switch and limit-switch inputs on the 24 VDC side; relay outputs controlling mold-close / mold-open.
  • Air-handler unit controller on a building automation retrofit — 24 VDC inputs from thermostats, smoke detectors, duct-pressure switches; relay outputs.

Buying Checklist

  • Pick CP1E-N60DT1-D for 60 I/O + transistor output + DC power — cheaper than CP1L-M for cost-sensitive applications
  • Pick CP1L-M40DR-A for a 40 I/O relay-output PLC on AC 100-240 VAC power — for spares replenishment of running systems
  • Pick CP1L-M40DT1-D for 40 I/O with transistor NPN sinking output — faster output switching for pulse-output applications up to 100 kHz

Technical Specifications

Model CP1L-M40DR-A
Series CP1L-M (medium-feature CP1L sub-line; CP1L-M40DT-D has a published 2027-06-30 production end, other variants need confirmation)
Type Compact PLC, 40 I/O points, relay output, AC power supply
Supply Voltage 100-240 VAC (auto-ranging, 85-264 VAC operating range, 47-63 Hz)
Power Consumption 60 VA max (at 100 VAC, with all outputs ON)
Number of Inputs 24 inputs, 24 VDC
Input Voltage Range 20.4 to 26.4 VDC
Input Current 7 mA per point typical at 24 VDC
ON Voltage / Current 14.4 VDC min / 3 mA min
OFF Voltage / Current 5.0 VDC max / 1 mA max
Input Response Time 8 ms max (configurable 0-32 ms in PLC Setup)
HSC Inputs 4 high-speed counter inputs at 100 kHz single-phase / 50 kHz two-phase (input points 0.00-0.03)
Number of Outputs 16 outputs, mechanical relay
Output Rating 2 A per point at 250 VAC / 24 VDC, 5 A common, 8 A total
Output Life (Mechanical) 10 million operations min

Manufacturer documentation

Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.

FAQ for CP1L-M40DR-A

When was the CP1L-M40DR-A discontinued?
The CP1L-M40DR-A (along with the entire CP1L-L, CP1L-J, CP1L-M, CP1E-10, and CP1E-NA sub-lines) was placed on Omron's Discontinuation Notice in 2023, with the last production date scheduled for 2027-06-30. For spare-parts replenishment of running CP1L-M systems beyond that date, Omron has spare stocks, but new CP1L-M production is not available after the discontinuation date. The recommended replacement is the CP1L-EM40DR-D — 40 I/O with 24 VDC power supply and built-in EtherNet/IP.
What's the difference between CP1L-M40DR-A (relay) and CP1L-M40DT1-D (transistor)?
The CP1L-M40DR-A (this SKU) uses mechanical relay outputs rated 2 A per point at 250 VAC / 24 VDC — capable of switching AC or DC loads, with galvanic isolation between the PLC and the load, with built-in RC snubbers on each output for inductive loads, but limited to about 1 kHz switching speed and 100,000-operation electrical life at rated load.
Can the CP1L-M40DR-A connect to a modern EtherNet/IP network?
No, the CP1L-M40DR-A does NOT have built-in EtherNet/IP — only the CP1L-EM sub-line has Ethernet. For EtherNet/IP connectivity on a CP1L-M, you must add an external Ethernet option unit (CJ1W-EIP21 / CS1W-EIP21 EtherNet/IP unit) mounted in a CJ-series expansion rack on the CP1L's peripheral port. This is technically possible but rare — when Ethernet was needed for CP1L projects, the typical upgrade was to swap the CP1L-M40DR-A for a CP1L-EM40DR-D.
Can I program the CP1L-M40DR-A with a USB cable?
Yes — the CP1L-M (and CP1L-EM) have a built-in USB 1.1 / 2.0 device port on the top of the CPU (Type-B mini-USB socket). The USB cable (standard USB-A to USB mini-B) connects directly to a PC with CX-Programmer 9.x installed. On Windows 10 / 11, the CP1L USB driver installs automatically via Windows Update when the cable is plugged in — no manual driver download is required.

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