CJ1M-CPU21 | Omron CJ1M Series PLC CPU Unit with RS-232C

Omron · PLCs & Industrial Controllers

CJ1M-CPU21 | Omron CJ1M Series PLC CPU Unit with RS-232C

Description  The Omron CJ1M-CPU21 is a control logic CPU unit designed for compact and reliable industrial automation systems. It provides integrated digital I/O, high-speed processing functions, and serial communication for flexible machine control.     Technical Specifications  Condition New / Never Used Surplus Brand Omron Category PLCs/Machine Control Part Number CJ1M-CPU21 Subcategory PLC Module / Rack Series CJ1M Series Module Type CPU Unit Supply Voltage 24 V DC Supply Current 13 mA Input Type DC Number of Digital Inputs 10 Number of Digital Outputs 8 Output Type Digital (Pulse / PWM / Solid-State) Communication Interface RS-232C Special Functions High-speed counter, high-speed interrupt input, input filter Mounting Type DIN Rail Termination Style Terminal Block Standards Compliance EMC, EN     Information About CJ1M-CPU21  The CJ1M-CPU21 is part of Omron’s CJ1M PLC platform, developed for mid-range automation applications requiring reliable performance and compact system design. The CPU integrates basic digital I/O directly on the unit, reducing the need for additional modules in smaller systems. It supports advanced control features such as high-speed counters and interrupt processing, making it suitable for motion-related and time-critical tasks. The built-in RS-232C interface enables straightforward communication with HMIs, programming devices, or supervisory systems. Key Features CJ1M series CPU architecture: Designed for flexible and scalable Omron PLC automation systems. Integrated digital I/O: Includes built-in digital inputs and outputs to support compact control configurations. Pulse and PWM output support: Enables control of positioning devices, inverters, and solid-state actuators. High-speed processing functions: Supports high-speed counters and interrupt-driven input processing. RS-232C communication interface: Facilitates serial communication with external devices and control systems. DIN rail mounting design: Allows quick installation and efficient use of control cabinet space. Low power consumption: Operates on 24 V DC with minimal current draw for energy-efficient operation. The CJ1M-CPU21 delivers the reliability and precision required for compact yet capable Omron PLC control solutions in industrial automation environments.

Brand: Omron · Category: PLCs & Industrial Controllers

Key features

Specifications

Manufacturer part numberCJ1M-CPU21
ConditionNew / Never Used Surplus
BrandOmron
CategoryPLCs/Machine Control
Part NumberCJ1M-CPU21
SubcategoryPLC Module / Rack
SeriesCJ1M Series
Module TypeCPU Unit
Supply Voltage24 V DC
Supply Current13 mA
Input TypeDC
Number of Digital Inputs10
Number of Digital Outputs8
Output TypeDigital (Pulse / PWM / Solid-State)
Communication InterfaceRS-232C
Special FunctionsHigh-speed counter, high-speed interrupt input, input filter
Mounting TypeDIN Rail
Termination StyleTerminal Block
Standards ComplianceEMC, EN
Product typeControl Logic CPU Unit

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