Omron CP1E-N20DR-A Programmable Logic Controller

Technical Overview

Compact AC-powered programmable logic controller with 12 digital inputs, 8 relay outputs (2A), built-in RS-232C, 8K steps program memory, and IP20 rating.

Key Features

Built-in RS-232C serial communication port and high-speed USB 2.0 programming port
12 24VDC digital inputs and 8 relay outputs with 2A switching capacity
8K steps program capacity and 8K words data memory storage
Supports four 10 kHz single-phase high-speed counter inputs or two 5 kHz phase-differential inputs
Integrated real-time clock (RTC) for precise time-based scheduling and logging
Smart input editor in CX-Programmer for fast and intuitive ladder programming
Compact chassis with DIN rail or panel mounting versatility

Technical Specification Matrix

Parameter	Value
Power Supply Voltage	100 to 240 VAC
Operating Voltage Range	85 to 264 VAC
Number of Inputs	12 Digital Inputs
Input Type	24 VDC, PNP/NPN
Number of Outputs	8 Relay Outputs
Output Current	2 A per point (250 VAC / 30 VDC)
Program Capacity	8K Steps
Data Memory Capacity	8K Words
IP Rating	IP20
Communication Ports	1 x RS-232C, 1 x USB 2.0
High-Speed Counter Inputs	4 single-phase (10 kHz) or 2 phase-differential (5 kHz)
Power Consumption	50 VA max (100 VAC), 70 VA max (240 VAC)
Operating Temperature Range	0 to 55 °C
Storage Temperature Range	-20 to 75 °C
Physical Weight (kg)	0.37
Dimensions L x W x H (cm)	8.5 x 8.6 x 9

Industrial Applications

1. Small-Scale Packaging Machine Control

Controlling the sequence of small horizontal flow wrappers or carton sealing machinery. The 12 digital inputs monitor limit switches and photoelectric safety sensors, while the 8 relay outputs directly control solenoids and feed motor contactors.

Problem Solved

Eliminates complex hardwired relay circuits in cost-constrained packaging operations. The internal real-time clock allows scheduling daily start-up/shut-down times, while the thin 8.6 cm width fits tight localized enclosures.

Relay OutputsDigital InputsCX-ProgrammerCompact EnclosureSolenoid Control

2. Water Treatment Pump Sequencing

Automating chemical dosing pumps and sequencing multiple booster pumps in localized reverse osmosis or water filtration plants. The built-in RS-232C port connects directly to a human-machine interface (HMI) for real-time process monitoring.

Problem Solved

Provides precise level-switch-triggered pump cycling. Working off a standard 100-240 VAC power source, it bypasses the need for low-voltage step-down control transformers, and its IP20 chassis slots easily into sealed external panels.

RS-232CPump Control100-240 VACLevel SwitchesHMI Integration

3. Conveyor Sorting with High-Speed Counting

Utilizing high-speed counter inputs to interface with proximity sensors or incremental encoders on a sorting line, tracking product transit positions and triggering directional divert gates.

Problem Solved

Overcomes the cycle-time lag associated with traditional digital inputs when handling high-speed sorting. The four 10 kHz single-phase high-speed counter inputs accurately register encoder pulses, firing the 2A relay outputs to trigger pneumatics.

High-Speed CountersEncoder InputConveyor SortingProximity SensorsRelay Output