Omron CJ1M-CPU22 SYSMAC CJ-series CJ1M CPU Units with Built-in I/O PLC CPU UNIT Ver.4.0

1. Overview of the Omron CJ1M-CPU22

The Omron CJ1M-CPU22 is the core unit of the Omron CJ series of small PLCs. Despite its compact size (90 × 49 × 65 mm), it offers powerful control capabilities with 320 I/O points. It can connect up to 10 expansion modules, easily meeting the complex logic requirements of medium-sized equipment. It features a built-in 10k-step program capacity and 32k-word data memory, along with 10 DC inputs and 6 transistor outputs. It integrates counting, interrupts, and pulse capture, enabling high-speed counting, pulse output, and multi-channel interrupt control without the need for additional modules.

For convenient communication, the CPU includes a built-in RS-232C peripheral port for direct connection to a touch screen, host computer, or programming cable, enabling remote monitoring, online debugging, and recipe management. On smart manufacturing production lines, it seamlessly connects with various brands of sensors and servo drives via Ethernet/RS-232C, enabling rapid data exchange and synchronous control. In applications such as building automation and packaging machinery, it leverages interrupt and high-speed pulse functions to precisely coordinate actuators such as lighting, fans, and stepper motors, significantly improving system response speed and energy efficiency.

2. Core Features:

1. Core Specifications
• CPU Type: CJ1M series compact controller with built-in I/O, 90 mm × 49 mm × 65 mm baseplate-less design, suitable for direct DIN rail mounting.
• Memory Capacity: Program capacity: 10k steps; data storage: 32k words; LD instruction speed: 0.10 μs minimum.
• Control Scale: The controller has 10 built-in 24 V DC inputs and 6 transistor outputs; the system supports up to 320 I/O points and can be expanded with up to 10 CJ series modules.
• Communication Port: Standard RS-232C x 1 (D-Sub 9-pin), capable of direct connection to a touch screen, host computer, or programming cable.
2. Built-in High-Speed ​​Functions
• Pulse Output: Two independent axes, 100 kHz (single-phase)/50 kHz (phase difference), supporting trapezoidal acceleration/deceleration, interrupt feed, and target position change. • High-speed counting: Two 100 kHz high-speed counters and four interrupt inputs (minimum pulse width 30 µs) enable easy length measurement and position capture.
• Origin search: Built-in origin proximity and origin input signals enable automatic servo motor home return.
3. Software and Maintenance
• Programming Languages: Ladder diagram, SFC, ST structured text, and mnemonics, with approximately 400 instructions available.
• Debugging Tools: CX-Programmer provides online monitoring, forced set/reset, data tracing, and supports memory card backup and firmware upgrades.
• Operating Modes: Selectable normal scan and peripheral service priority modes, with a system overhead of only 0.5 ms and high real-time performance.

3.Product details pictures

4. Related products

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