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CJ1W-SCU32

Omron CJ1W-SCU32 CJ Series Serial Communication Unit RS-232 RS-485

SKU: CJ1W-SCU32

USD 205.00

Omron CJ1W-SCU32 is a serial communication unit for CJ series PLCs with RS-232 and RS-485 ports for versatile serial connectivity.

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Product Overview

The Omron CJ1W-SCU32 is a dual-port serial communication module for CJ1 series PLCs, providing flexible connectivity for industrial automation systems requiring interface to serial devices. This module features two independent serial ports: one RS-232C port and one RS-485 port, enabling connection to a wide variety of field devices including barcode scanners, weigh scales, variable frequency drives, and legacy equipment. The RS-232C port supports point-to-point communication with devices such as HMI terminals, programming tools, and serial printers. The RS-485 port supports multi-drop connections for up to 32 devices, ideal for networks of drives, sensors, or other serial-equipped equipment. The CJ1W-SCU32 supports multiple protocols including Omron-specific protocols, Modbus RTU, and general ASCII communication, providing flexibility for integrating diverse automation equipment. The module includes comprehensive buffer memory for handling high-speed data exchange without impacting PLC scan time. Easy configuration is achieved through CX-Programmer or the module front panel switches, allowing quick setup of communication parameters such as baud rate, data bits, and parity. The CJ1W-SCU32 is hot-swappable, allowing module replacement without powering down the entire PLC system. Applications include connection to VFDs for motor speed control, barcode scanner integration for tracking, serial HMI connections, and legacy device interface in modernization projects.

  • SKU: CJ1W-SCU32
  • Series: CJ1W

Best-Fit Applications

  • Variable frequency drive control
  • Barcode scanner integration
  • Serial HMI connections
  • Weigh scale communication
  • Legacy equipment interface
  • Serial printer output
  • Multi-drive networks
  • Remote I/O communication

Buying Checklist

  • Dual ports for flexible connectivity
  • RS-485 enables networked devices
  • Modbus support for third-party devices
  • Hot-swappable for easy maintenance
  • Independent port configuration
  • LED diagnostics for troubleshooting
  • Proven CJ1 compatibility
  • Omron quality and support

Technical Specifications

Model CJ1W-SCU32
Series CJ1W
Type Serial Communication Unit
Ports 1x RS-232C, 1x RS-422/RS-485
Protocols Host Link, Modbus-RTU, NT Link, Protocol Macro
Baud Rate 300 bps to 115.2 kbps
Max Stations 32 stations (RS-485)
Max Distance 500m (RS-485)
Current Consumption 200mA at 5VDC
Compatible CPUs CJ1M, CJ1G, CJ1H, CJ2M, CJ2H
Operating Temperature 0 to +55°C
Mounting CJ series backplane

FAQ for CJ1W-SCU32

What's the advantage of dual ports?
RS-232C for point-to-point (HMI, PC). RS-485 for multi-drop (multiple devices). One unit handles both communication requirements.
Can I use both ports simultaneously?
Yes, both ports operate independently. Different protocols, baud rates on each port. Useful for connecting HMI (RS-232C) and drives (RS-485) simultaneously.
What's the maximum cable length?
RS-232C: 15m max. RS-485: 500m at 125kbps, shorter at higher baud rates. Use appropriate cable for distance and baud rate.
Do I need to configure both ports?
Yes, configure each port independently in CX-Programmer: set baud rate, parity, protocol for each port. Configuration downloads to CPU.

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