Omron CJ1W-SCU31-V1 High-Speed Serial Communication Unit
The CJ1W-SCU31-V1 is a high-speed serial communication unit designed for Omron CJ-series PLCs, providing two independent RS-422A/485 ports for versatile industrial data exchange. Each port can be individually configured for protocol macro, serial gateway, no-protocol, or Modbus-RTU Slave communication — offering robust integration with third-party devices, sensors, barcode scanners, and more.
Compact and DIN-rail mountable, this unit is ideal for expanding communication capabilities within CJ1, CJ2, and CS1-series PLC systems.
Technical Specifications
Model: CJ1W-SCU31-V1
Product Type: Serial Communication Unit
PLC Series Compatibility: CJ1, CJ2, CS1
Mounting Type: CPU Bus Unit (left-side of CPU)
I/O Bus Interface: CJ-series CPU Bus
Number of Ports: 2
Port Types: RS-422A/485
Selectable Communication Modes (CJ system):
- Protocol Macro
- Host Link
- NT Link (1:N mode)
- Serial Gateway
- No Protocol
- Modbus-RTU Slave
Selectable Communication Modes (NJ system):
- Protocol Macro
- Serial Gateway
- No Protocol
- Modbus-RTU Slave
CJ1W-SCU31-V1 Electrical Specifications
- Internal Current Consumption: 0.40 A (5 VDC)
- External Power Supply: Not required
- Backup Function: Not supported on NJ system
- Interrupt Notification: Not supported on NJ system
CJ1W-SCU31-V1 Mechanical Specifications
- Communication Connector Type:
Phoenix Contact FMC1.5/5-STF-3.5AU terminal block - Enclosure Type: Modular unit for CJ-series rack
- Mounting: Direct to PLC base rack
Environmental Conditions
- Operating Temperature: 0 to 55°C
- Storage Temperature: –25 to 70°C
- Relative Humidity: 10% to 90% (non-condensing)
- Vibration Resistance: IEC 60068-2-6 compliant
- Shock Resistance: IEC 60068-2-27 compliant
- Protection Rating: IP20 (when mounted in panel)
Standards & Compliance
- Certifications: CE, UC1, cULus (UL508), RoHS
- Standards Met: EN61131-2, EN61010-2-201
Key Features & Benefits
✅ Dual Serial Ports: 2 × RS-422A/485 for flexible serial communication.
✅ Multi-Protocol Capability: Supports Protocol Macro, Modbus RTU, Host Link, and more.
✅ High-Speed Data Transfer: Reliable communication for field devices.
✅ Terminal Block Connector: Easy wiring using Phoenix Contact plug-in blocks.
✅ CJ/NJ/NX Compatibility: Full support in Omron Sysmac environments.
📦 Available Now from Drive Outlet Megastore
The Omron CJ1W-SCU31-V1 is the perfect choice for projects requiring high-speed, multi-protocol serial communication across industrial systems. Ideal for machine builders, automation engineers, and retrofit applications seeking easy-to-integrate serial expansion.
Request a quote or contact our team for stock availability and expert support.
Versatile communication. Reliable performance. Built for Omron PLCs. – Drive Outlet Megastore
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