Omron CP1E-N20DT-D Programmable Logic Controller

Technical Overview

Compact 24VDC PLC with 12 inputs, 8 sinking NPN outputs, 8K program capacity, dual 100kHz high-speed counter inputs, and 2-axis 100kHz pulse outputs.

Key Features

Built-in USB port for easy connection and programming with standard USB cables
Integrated RS-232C serial port for HMI, inverter, or serial component connectivity
Two 100 kHz and four 10 kHz high-speed counter inputs for multi-axis monitoring
Two 100 kHz pulse outputs for precise speed and multi-axis position control
Supports variable duty-factor PWM output up to 32 kHz for proportional control
Generous memory profile with 8K steps program capacity and 8K words data memory
Compact chassis with DIN rail or panel mounting for space-constrained enclosures

Technical Specification Matrix

Parameter	Value
Supply Voltage	24 VDC
Operating Voltage Range	20.4 to 26.4 VDC
Number of Inputs	12
Input Type	24 VDC, NPN/PNP compatible
Number of Outputs	8
Output Type	Transistor (sinking / NPN)
Program Capacity	8K steps
Data Memory Capacity	8K words
Internal Current Consumption	0.23 A at 5 VDC, 0.02 A at 24 VDC
High-Speed Counters	6 inputs (2 x 100 kHz, 4 x 10 kHz)
Pulse Outputs	2 axes, 100 kHz max
PWM Output	1 output, 32 kHz max (CIO 100.01)
Inrush Current	30 A max for 20 ms max
Built-in Communication Ports	1 x USB 2.0 (Type B), 1 x RS-232C
IP Rating	IP20
Operating Temperature Range	0 to 55 °C
Storage Temperature Range	-20 to 75 °C
Physical Weight (kg)	0.33
Dimensions L x W x H (cm)	8.5 x 8.6 x 9

Industrial Applications

1. High-Speed Labeling and Synchronized Cutting Machine

Packaging lines require synchronized cutting or label placement relative to a moving conveyor. Using a dual-channel rotary encoder connected to the dual 100 kHz high-speed counter inputs, the PLC tracks conveyor position in real-time. It then uses its two 100 kHz pulse output axes to command stepper or servo drives, executing precise trapezoidal moves to align the cutter/labeler perfectly with the product.

Problem Solved

Prevents alignment mismatch and label drift caused by fluctuating conveyor speeds, utilizing high-speed hardware interrupts instead of scan-time-limited soft logic.

Rotary EncoderHigh-Speed CounterPulse OutputMulti-Axis PositioningTrapezoidal Speed Control

2. Proportional Solenoid Valve Flow Modulation

In chemical blending or medical testing benches, liquid or air flow must be dynamically adjusted using proportional solenoid valves. The CP1E-N20DT-D's built-in 32 kHz PWM output (CIO 100.01) generates a precise variable duty-cycle signal. Driving the valve via its sinking NPN transistor configuration at 24 VDC directly modulates current to control coil position and fluid rate.

Problem Solved

Eliminates the cost of expensive external analog-to-PWM signal converters by generating high-frequency hardware PWM directly from the controller's main board.

PWM OutputDuty Cycle ControlSolenoid Proportional ValveFlow ModulationTransistor Sinking Output

3. DIN Rail Electrical Panel Control for Compact Assembly Stations

Custom desktop assembly stations require sensor logging and simple pneumatic cylinder manipulation in tight cabinets. Running directly on 24 VDC with low current draw (0.23 A at 5 V, 0.02 A at 24 V), this PLC fits onto standard DIN rails in micro-enclosures. It connects 12 local proximity and safety sensors and controls up to 8 small solenoid valves or indicators using its NPN transistor outputs.

Problem Solved

Saves critical panel space and reduces thermal loads in sealed IP20 micro-cabinets by avoiding bulky AC-to-DC internal circuitry and utilizing high-efficiency solid-state outputs.

DIN Rail MountingCompact Footprint24 VDC PowerSinking Transistor OutputIP20 Enclosure