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CJ1M-CPU21

Omron CJ1M-CPU21 CJ1M Series PLC CPU Unit

SKU: CJ1M-CPU21

Compact PLC CPU with 5K steps program capacity, 160 I/O points, built-in high-speed counter

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Product Overview

The Omron CJ1M-CPU21 is a CPU unit from the CJ1M series, a popular mid-range programmable logic controller family known for reliability and cost-effectiveness. This CPU provides 5K steps of program memory with capacity for up to 160 I/O points, making it suitable for small to medium automation applications. The CJ1M-CPU21 features built-in high-speed counter functionality and pulse output capabilities, ideal for positioning and motion control applications. Its compact design and modular architecture allow flexible configuration with CJ series I/O modules. Programming is done via CX-Programmer, providing a comprehensive development environment for logic, positioning, and network configuration.

  • SKU: CJ1M-CPU21
  • Series: CJ1M
  • Voltage: 24VDC
  • I/O: 160 I/O

Best-Fit Applications

  • Small packaging machinery
  • Simple assembly automation
  • Conveyor control systems
  • HVAC control
  • Pump and motor control
  • Lighting control systems

Buying Checklist

  • Ideal for applications needing up to 160 I/O points
  • Verify program capacity meets application needs
  • Confirm communication options required
  • Check power supply type compatibility

Technical Specifications

Series CJ1M
Program Capacity 5K steps
I/O Capacity 160 points
Data Memory 32K words
High-Speed Counter 100kHz built-in
Pulse Output 100kHz (2 axes)
Communication RS-232C, peripheral port
Programming CX-Programmer
Power Supply 24VDC or 100-240VAC
Operating Temperature 0C to 55C

FAQ for CJ1M-CPU21

What is the difference between CJ1M-CPU11 and CJ1M-CPU21?
Both models have similar specifications with 5K steps program capacity and 160 I/O points. The main differences are in the specific built-in functions and optional features. The CPU21 typically includes enhanced pulse output capabilities.
Can CJ1M handle motion control?
The CJ1M has built-in pulse outputs for simple positioning. For complex motion control, consider CJ2M series or NX series controllers with EtherCAT connectivity.

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