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Omron CP2E-N40DT-D — front face of the slim 150 x 90 mm CPU showing the 24 DC input LEDs on the left half, the 16 NPN output LEDs on the right half, and the CPU status / RUN / ERR / PWR LEDs in the top-right corner

Omron CP2E-N40DT-D — 40-I/O Network PLC, 24 VDC, Sink

SKU: CP2E-N40DT-D

USD 168.00

CP2E-N compact PLC with 24 DC inputs / 16 NPN sink outputs, dual Ethernet, 4-axis 100 kHz HSC, 10K-step program, 24 VDC supply.

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Product Overview

The Omron CP2E-N40DT-D is the 40 I/O head of the CP2E-N slim network PLC line. The 24 DC inputs and 16 NPN (sinking) open-collector transistor outputs give a 24 VDC machine enough headroom for typical small-line control, and the two built-in 10/100 base-T Ethernet ports handle SCADA polling, an NB-series HMI, and CX-Programmer upload without an extra switch.

Where the N head fits

The CP2E family has three heads. The N head is the dual-Ethernet network CPU (this SKU) for machines that need to sit on a factory Ethernet. The S head is the single-Ethernet slim CPU for machines that need one Ethernet port for an HMI or remote upload, but not factory network integration. The E head is the no-Ethernet essential CPU for stand-alone machines that only need serial or USB programming. Pick the N40DT-D when the machine needs dual Ethernet for SCADA, HMI, and a spare port for tool connection or future expansion.

What the N40 head carries

The 10K-step program capacity and 32K-word data memory cover most multi-page machine programs. The 4 high-speed counters at 100 kHz single-phase read encoder feedback for cut-to-length or indexing. The 2 pulse outputs at 100 kHz drive a stepper or a 24 VDC servo via a pulse / direction amplifier. A single CP1W option board (RS-232C, RS-422 / 485, analog in / out) drops into the front face for a second serial port or an analog channel. Up to three CP1W expansion units extend the I/O to 160 points maximum.

Before ordering

Confirm the supply is 24 VDC -- there is no AC variant of the CP2E. Confirm the output polarity matches the field device (DT = NPN sink, DT1 = PNP source). For clock-driven events, add the CP2W-BAT02 battery (sold separately).

Key Features

  • CP2E-N-series compact slim network PLC with built-in dual 10/100 base-T Ethernet
  • 40 I/O = 24 DC inputs / 16 NPN (sinking) open-collector transistor outputs
  • DT = NPN sink, D = 24 VDC supply at 40 W max, 20.4-26.4 VDC operating
  • 10K-step program capacity, 32K-word data memory, CX-Programmer with FB and ST
  • EtherNet/IP + FINS/UDP + socket service on the two Ethernet ports (no switch needed)
  • 4 high-speed counters at 100 kHz single-phase, 2 pulse outputs at 100 kHz
  • 1 CP1W option board slot for RS-232C / RS-422/485 / analog in / out
  • Up to 3 CP1W expansion units for 160 I/O max
  • 90 H x 80 D x 150 W mm slim DIN-rail body at 550 g or less
  • -20 to +60 C operating, CE / UL / cULus / KC / RCM approvals
  • SKU: CP2E-N40DT-D
  • Series: CP2E-N (compact slim PLC, dual-Ethernet network head)
  • Voltage: 24 VDC
  • I/O: 40 I/O

Best-Fit Applications

  • Small packaging line with SCADA polling and an NB-series HMI on the second Ethernet port
  • Conveyor cell with 4-axis encoder feedback and 2-axis stepper / servo control
  • Filling machine with 24 VDC field I/O and a remote SCADA node over EtherNet/IP
  • Multi-station assembly machine where each station is a CP2E-N on the same network
  • OEM skid with a CP2E-N plus one CP1W analog option board for a pressure / flow loop

Buying Checklist

  • Pick CP2E-N40DT-D for a 40 I/O slim PLC with dual Ethernet, 10K-step program, and 24 VDC NPN sink outputs.
  • Pick CP2E-N30DT-D instead when 30 I/O is enough and a slightly smaller body fits the cabinet.
  • Pick CP2E-N60DT1-D instead when 60 I/O with PNP sourcing outputs is the requirement.
  • Pick CP2E-S30DT-D instead when the machine does not need factory Ethernet and one Ethernet port is enough.
  • Pick CP1L-EM30DT-D instead when the program is larger (CX-Programmer libraries, structured text) or 3-axis pulse is needed.
  • Add the CP2W-BAT02 battery for the clock function (RTC) and CP1W-CIF11 for an RS-422 / 485 port for a temperature controller or VFD.

Technical Specifications

Series / Head CP2E-N (compact slim PLC, dual-Ethernet network head)
I/O Count 40 I/O = 24 DC inputs / 16 transistor outputs
Output Type NPN (sinking) open collector, 0.3 A per point / 0.9 A per common
Supply Voltage 24 VDC (20.4 to 26.4 VDC operating), 40 W max
Inrush Current 30 A at 24 VDC cold start, 20 ms or less
Program / Data Memory 10K steps / 32K words
Ethernet 2 x 10/100 base-T (EtherNet/IP + FINS/UDP + socket service)
High-Speed Counters 4 axes at 100 kHz single-phase / 2 axes 50 kHz differential
Pulse Outputs 2 axes at 100 kHz
Option Board 1 CP1W slot (RS-232C, RS-422/485, analog in / out)
Expansion Up to 3 CP1W units, 160 I/O max
Dimensions / Operating Temp 90 H x 80 D x 150 W mm, 550 g, -20 to +60 C

FAQ for CP2E-N40DT-D

What is the difference between CP2E-N40DT-D and CP2E-S30DT-D?
Ethernet ports and I/O count. The CP2E-N40DT-D is the dual-Ethernet network head with 40 I/O (24 inputs / 16 NPN sink outputs). The CP2E-S30DT-D is the slim single-Ethernet head with 30 I/O. The N40 head costs more but carries the second Ethernet port for SCADA + HMI on a daisy chain, plus a larger program capacity (10K steps vs 8K on the S30). Pick the N40DT-D for networked machines; pick the S30DT-D for stand-alone machines that only need one Ethernet port for an HMI.
How many expansion units can I add to a CP2E-N40DT-D?
Up to 3 CP1W expansion units for a maximum of 160 I/O total (40 built-in plus 3 x 40 I/O expansion). The 40 I/O expansion units are CP1W-40EDR (24-in / 16-relay-out), CP1W-40EDT (24-in / 16-NPN-out), and CP1W-40EDT1 (24-in / 16-PNP-out). The CP1W-8ET / 8ET1 (8-point output), CP1W-16ER (16-point relay), and CP1W-AD042 (4-point analog) are smaller alternatives. The CP2E-N40DT-D also has 1 CP1W option board slot for a serial port or analog channel on the front face.
Is the CP2E-N40DT-D programmed with CX-Programmer?
Yes. CX-Programmer version 9.6 or later supports the CP2E family with ladder logic, structured text (ST), and function block (FB) programming. CX-One is the bundle that includes CX-Programmer plus the network configurator. The CP2E series shares the same instruction set as the CP1E and CP1L families, so existing CP1 ladder programs move to the CP2E with minimal rework. Sysmac Studio does not support the CP2E -- the CP2E is the CX-Programmer platform, not the Sysmac NJ / NX1 / NX5 platform.
Does the CP2E-N40DT-D have a battery-backed clock?
Yes, but the battery is sold separately. The CP2E-N40DT-D has a real-time clock (RTC) for time-stamped events, scheduled outputs, and astronomical timer instructions. The CP2W-BAT02 battery (sold separately) is required to keep the clock running when the 24 VDC supply is off. Without the battery, the RTC resets on every power cycle. The S and E heads do not have the RTC at all. Add the CP2W-BAT02 on the build sheet when the application uses time-of-day logic or scheduled events.

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