Omron CS1W-SCU31-V1 Serial Communication Unit

The Omron CS1W-SCU31-V1 is a versatile serial communication unit for the CS-series PLC platform, offering two RS-422/485 ports for high-speed multi-drop communication. It supports a range of protocols including Protocol Macro, Host Link, 1:N NT Link, Modbus-RTU, Modbus-ASCII, Serial Gateway, and CompoWay/F, making it suitable for integration with a broad array of third-party field devices.

Designed as a CPU bus unit, it enables seamless communication with external serial devices such as bar code readers, inverters, or weighing scales, while offering simplified setup through CX-Protocol and Protocol Macro Editor.

Technical Specifications

Model: CS1W-SCU31-V1
Series: CS1W
Product Type: Serial Communication Unit
Mounting Type: DIN Rail via CS-series rack
Dimensions (W × H × D): Refer to datasheet
Weight (Unpacked): Approx. 200 g
Degree of Protection: IP20 (when mounted in enclosure)
Module Type: CPU Bus Unit

Communication Interfaces

• Communication Ports: 2 × Serial RS-422/RS-485
• Supported Protocols:
  • Protocol Macro
  • Host Link
  • 1:N NT Link
  • Serial Gateway
  • CompoWay/F
  • Modbus RTU (Master/Slave)
  • Modbus ASCII
  • No Protocol (Raw ASCII/Binary)
• Max Transmission Speed: Up to 115.2 kbps (depending on protocol)
• Communication Settings: Baud rate, parity, stop bits configurable via software
• PLC Interface: CS I/O Bus (direct CPU rack slot)

Mechanical & Installation

• Connection to PLC: Direct CPU rack slot
• Connector Type: Terminal block (RS-422/485 wiring)
• Installation Orientation: Vertical
• Cooling Method: Natural convection
• Power Supply: Supplied from backplane (no external supply required)

Environmental Conditions

• Operating Temperature: 0 to 55°C
• Storage Temperature: –25 to +70°C
• Relative Humidity: 10% to 90% RH (non-condensing)
• Altitude: Up to 2000 m
• Vibration Resistance: Conforms to IEC 60068-2-6
• Shock Resistance: Conforms to IEC 60068-2-27

Applications

Perfect for:

• Serial communication with legacy equipment
• Connecting inverters, temperature controllers, or bar code readers
• Modbus RTU/ASCII integration into CS-series PLCs
• Host Link-based supervisory control
• Custom serial communication via Protocol Macro

Key Features & Benefits

✅ Dual Serial Ports: Communicate with two devices independently.

✅ Flexible Protocol Support: Includes Modbus RTU, ASCII, Host Link, and more.

✅ Protocol Macro Function: Enables custom frame communication with non-standard devices.

✅ Seamless CS-Series Integration: Installs directly into CPU rack slot.

✅ Cost-Effective Expansion: Ideal for serial-to-PLC data interfacing.

📦 Available from Drive Outlet Megastore

The Omron CS1W-SCU31-V1 delivers flexible, protocol-rich serial communication in a single, compact CS-series module.

Need help implementing a serial network or configuring Protocol Macros? Contact our automation support team today.

Legacy communication. Modern control. Drive Outlet makes it effortless.