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Omron CJ1W-SCU42 2-Port Serial Communication Unit

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Omron CJ1W-SCU42

by Omron

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OverviewUnlock the full communication potential of your industrial automation systems with the Omron CJ1W-SCU42 Dual-Port Serial Communication Unit. Specifically designed for effortless integration with Omron CJ-Series PLCs, this robust module offers exceptional versatility for connecting a wide array of serial devices. Supporting both RS-232C and RS-422A/485 interfaces, the CJ1W-SCU42 is an indispensable component for environments demanding dependable and adaptable serial data exchange. Whether incorporating existing equipment or expanding your current system with modern peripherals, this unit ensures your PLC can seamlessly interact with everything from barcode scanners and printers to advanced sensors and other PLCs, optimizing operational efficiency and data flow.Key Features Dual Independent Ports: Benefit from two completely separate serial ports, each configurable for either RS-232C or RS-422A/485 communication, maximizing connectivity options. High-Speed Data Transfer: Achieve rapid data exchanges with a maximum transfer rate of up to 115.2 kbps per port, ensuring efficient communication with demanding serial devices. Extensive Protocol Support: The unit supports various communication protocols including Host Link, NT Link, no-protocol, and Modbus (via function blocks), along with user-defined options, offering broad compatibility. Flexible Wiring and Configuration: DIP switch settings provide simple and precise individual port configuration, allowing for tailored solutions to meet specific application requirements. Seamless CJ-Series Integration: Engineered for easy installation, the unit integrates smoothly into any CJ-Series CPU rack or expansion rack, simplifying system setup and expansion. Advanced Data Handling: Capable of both point-to-point and multidrop communication setups, providing adaptable network topologies for various industrial applications. Technical Specifications Model Number: CJ1W-SCU42 Number of Ports: 2 Supported Interfaces: RS-232C, RS-422A/485 Maximum Baud Rate: 115.2 kbps Mounting: DIN rail Power Supply: 5 VDC from PLC bus Power Consumption: Approximately 0.45 A Operating Temperature: 0°C to 55°C Dimensions: 31 mm (W) × 90 mm (H) × 83 mm (D) Weight: Approximately 200 g Certifications: CE, cULus Applications Barcode and RFID Readers: Facilitates high-speed communication with identification systems for tracking and data capture. Serial Printers and Scanners: Enables seamless integration with various output and input devices for a comprehensive automation solution. Weighing Systems: Connects to precision weighing equipment for accurate measurement and process control. Legacy Equipment Integration: Bridges the gap between older serial devices and modern PLC systems, extending the lifespan of existing machinery. Multi-Device Field Communication: Ideal for managing communication with multiple field devices within complex industrial environments. Why Choose This Model?The Omron CJ1W-SCU42 stands out as a leading choice for enhancing your automation infrastructure due to its exceptional design and feature set. Its dual-port architecture enables simultaneous communication with numerous serial devices, significantly improving system efficiency and reducing the need for multiple communication modules. The unparalleled flexibility in supported protocols ensures easy integration with a wide range of hardware, safeguarding your investment and simplifying complex system designs. Backed by Omron’s renowned industrial standards, you can trust in the CJ1W-SCU42's reliable performance and robust construction, even in the most demanding industrial settings. Furthermore, its compact form factor seamlessly fits into existing CJ-Series systems, optimizing panel space and streamlining installation. Elevate your PLC's communication capabilities and ensure robust, adaptable connectivity with the CJ1W-SCU42.Order NowReady to enhance your Omron CJ-Series PLC's communication capabilities? The CJ1W-SCU42 is available for immediate order. Contact our sales team or visit our website to secure this essential component for your automation system.FAQWhat types of communication interfaces does the CJ1W-SCU42 support?The CJ1W-SCU42 supports both RS-232C and RS-422A/485 interfaces, offering broad compatibility for various industrial devices.Can both ports on the unit be configured independently?Yes, both ports on the CJ1W-SCU42 are fully independent and can be individually configured for different communication protocols and settings.What is the maximum baud rate supported by this communication unit?The unit supports a maximum baud rate of up to 115.2 kbps per port, enabling high-speed data transfers.Is the CJ1W-SCU42 difficult to install with Omron CJ-Series PLCs?No, the unit is designed for seamless integration and effortless installation into any Omron CJ-Series CPU rack or expansion rack.Can this module be used to connect older serial devices to modern PLC systems?Absolutely, the CJ1W-SCU42 is ideal for integrating legacy serial equipment, bridging the gap between older devices and contemporary PLC systems.

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PRODUCT DETAILS

Omron CJ1W-SCU42

Overview

This is a genuine Omron component from the Omron PLCs family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Omron catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Omron automation ecosystem
  • Engineered to integrate inside Omron PLCs installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Omron equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Omron catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Omron platform with documented conversion notes for the Omron PLCs family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Model Number: CJ1W-SCU42
  • Number of Ports: 2
  • Supported Interfaces: RS-232C, RS-422A/485
  • Maximum Baud Rate: 115.2 kbps
  • Mounting: DIN rail
  • Power Supply: 5 VDC from PLC bus
  • Power Consumption: Approximately 0.45 A
  • Operating Temperature: 0°C to 55°C
  • Dimensions: 31 mm (W) × 90 mm (H) × 83 mm (D)
  • Weight: Approximately 200 g
  • Certifications: CE, cULus

Applications

  • Barcode and RFID Readers: Facilitates high-speed communication with identification systems for tracking and data capture.
  • Serial Printers and Scanners: Enables seamless integration with various output and input devices for a comprehensive automation solution.
  • Weighing Systems: Connects to precision weighing equipment for accurate measurement and process control.
  • Legacy Equipment Integration: Bridges the gap between older serial devices and modern PLC systems, extending the lifespan of existing machinery.
  • Multi-Device Field Communication: Ideal for managing communication with multiple field devices within complex industrial environments.

Why Choose the CJ1W-SCU42?

The Omron CJ1W-SCU42 stands out as a leading choice for enhancing your automation infrastructure due to its exceptional design and feature set. Its dual-port architecture enables simultaneous communication with numerous serial devices, significantly improving system efficiency and reducing the need for multiple communication modules. The unparalleled flexibility in supported protocols ensures easy integration with a wide range of hardware, safeguarding your investment and simplifying complex system designs. Backed by Omron’s renowned industrial standards, you can trust in the CJ1W-SCU42's reliable performance and robust construction, even in the most demanding industrial settings. Furthermore, its compact form factor seamlessly fits into existing CJ-Series systems, optimizing panel space and streamlining installation. Elevate your PLC's communication capabilities and ensure robust, adaptable connectivity with the CJ1W-SCU42.

Availability & Shipping

  • In stock: CJ1W-SCU42 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every CJ1W-SCU42 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Omron

The CJ1W-SCU42 supports both RS-232C and RS-422A/485 interfaces, offering broad compatibility for various industrial devices.

Machine down? We ship parts the same day.

New, surplus, and refurbished Omron inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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