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Xiamen Online Union Technology Co., Ltd

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China CQM1H-SCB41 Omron Serial Communication Inner Board For CQM1H PLC
China CQM1H-SCB41 Omron Serial Communication Inner Board For CQM1H PLC

  1. China CQM1H-SCB41 Omron Serial Communication Inner Board For CQM1H PLC
  2. China CQM1H-SCB41 Omron Serial Communication Inner Board For CQM1H PLC
  3. China CQM1H-SCB41 Omron Serial Communication Inner Board For CQM1H PLC
  4. China CQM1H-SCB41 Omron Serial Communication Inner Board For CQM1H PLC

CQM1H-SCB41 Omron Serial Communication Inner Board For CQM1H PLC

  1. MOQ: 1
  2. Price: 1-99$
  3. Get Latest Price
Payment Terms T/T
Supply Ability 999
Delivery Time in stock / 1-3 work days
Packaging Details Brand New Original
Model CQM1H-SCB41
Max. Baud Rate 115.2 kbps
Isolation Optical isolation (500 VAC between ports and CPU)
Power Consumption Approx. 0.3A (at 5V DC from CPU bus)
Operating Temperature 0 to 55 °C (Non-freezing)
Compatibility CQM1H-CPU11, CPU21, CPU41, CPU51, CPU61
Certifications CE, UL, cUL
Brand Name OMRON
Model Number CQM1H-SCB41
Place of Origin JAPAN

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Product Specification

Payment Terms T/T Supply Ability 999
Delivery Time in stock / 1-3 work days Packaging Details Brand New Original
Model CQM1H-SCB41 Max. Baud Rate 115.2 kbps
Isolation Optical isolation (500 VAC between ports and CPU) Power Consumption Approx. 0.3A (at 5V DC from CPU bus)
Operating Temperature 0 to 55 °C (Non-freezing) Compatibility CQM1H-CPU11, CPU21, CPU41, CPU51, CPU61
Certifications CE, UL, cUL Brand Name OMRON
Model Number CQM1H-SCB41 Place of Origin JAPAN
High Light Omron CQM1H-SCB41 communication boardCQM1H PLC serial interface boardOmron PLC inner board with warranty

The Omron CQM1H-SCB41 is a high-performance Serial Communication Inner Board (option board) designed specifically for the CQM1H series of Programmable Logic Controllers (PLCs). Engineered to bridge the gap between the controller and the outside world, this module transforms a standard CQM1H CPU into a versatile communication hub. By providing dual ports—one RS-232C and one RS-422A/485—it enables robust data exchange with Human-Machine Interfaces (HMIs), barcode readers, printers, sensors, and third-party devices.


As a core component of Omron’s rack-less modular architecture, the SCB41 eliminates the need for a separate backplane, allowing for a compact, cost-effective, and highly customized control system. It is the definitive solution for applications requiring complex serial communication protocols and multi-device networking.


Key Features & Benefits

  • Dual-Port Versatility: Equipped with one RS-232C port (for local maintenance or point-to-point connection) and one RS-422A/485 port (for high-speed, noise-immune multi-drop networks), offering maximum flexibility in hardware configuration.
  • Protocol Macro Capability: Supports Omron’s "Protocol Macro" feature, allowing the PLC to communicate seamlessly with third-party serial devices using custom or standard ASCII protocols, effectively acting as a gateway for non-Omron equipment.
  • High-Speed Communication: Capable of baud rates up to 115.2 kbps, ensuring rapid data transmission for time-critical processes and real-time monitoring.
  • Compact "Inner Board" Design: Mounts directly onto the CPU unit without requiring additional mounting space or a backplane, significantly reducing the footprint of the control panel.
  • Optical Isolation: The RS-422/485 channel features optical isolation (typically 500 VAC) to protect the CPU from electrical noise and voltage spikes common in harsh industrial environments.
  • Peripheral Link Capability: Can be utilized for PLC-to-PLC linking (Peripheral Link) to share data between CQM1H units or with C200H/CQM1 series controllers, facilitating distributed control systems.


Technical Specifications

Parameter Specification
Product Series CQM1H (Inner Board / Option Board)
Model CQM1H-SCB41
Communication Ports 1 x RS-232C (D-sub 9-pin), 1 x RS-422A/485 (D-sub 9-pin)
Max. Baud Rate 115.2 kbps
Isolation Optical isolation (500 VAC between ports and CPU)
Power Consumption Approx. 0.3A (at 5V DC from CPU bus)
Dimensions (W x H x D) 107.5 x 45 x 16.8 mm
Weight Approx. 0.26 kg
Operating Temperature 0 to 55 °C (Non-freezing)
Compatibility CQM1H-CPU11, CPU21, CPU41, CPU51, CPU61
Certifications CE, UL, cUL


Typical Applications

The CQM1H-SCB41 is a critical enabler for industrial automation across various sectors:

  • Factory Automation: Connecting CQM1H PLCs to Omron NT/NA series HMIs or third-party touchscreens for real-time process visualization.
  • Material Handling: Networking with barcode scanners and RFID readers on conveyor systems for product tracking and sorting.
  • Process Control: Linking multiple PLCs via RS-485 for synchronized control of large-scale systems, such as water treatment plants or packaging lines.
  • Device Integration: acting as a master station to poll multiple slave devices (instruments, drives) using Modbus RTU or custom ASCII protocols.
  • Data Logging: Transmitting production data to a supervisory computer (SCADA) or a thermal printer for batch reporting.


Ordering Information

  • Manufacturer: OMRON Corporation
  • Product Type: PLC Communication Module / Inner Board
  • MPN: CQM1H-SCB41
  • Related Models: CQM1H-CLK21 (Clock Board), CQM1H-ME16R (Memory Cassette), CQM1H-CTB41 (Counter Board).

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Company Details

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 from Quality China Factory
  • Business Type:

    Trading Company,Distributor/Wholesaler,Exporter,Seller,Agent

  • Year Established:

    10years

  • Total Annual:

    5000000-1000,0000

  • Employee Number:

    100~200

  • Ecer Certification:

    Verified Supplier

           Xiamen Online Union Technology Co., Ltd is a global distributor of automation parts, focusing on mature, popular and powerful products. We have thousands of new parts in stock, which have been exported to more than 50 countries in the world. All the products...            Xiamen Online Union Technology Co., Ltd is a global distributor of automation parts, focusing on mature, popular and powerful products. We have thousands of new parts in stock, which have been exported to more than 50 countries in the world. All the products...

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  • Xiamen Online Union Technology Co., Ltd
  • 103, No.26, Zhenhai Road, Siming District, Xiamen, China
  • https://www.3wplc.com/

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