CJ1W-SCU31-V1 Serial Communications Units omron PLC CJ/NJ controller

The CJ1W-SCU31-V1 Serial Communications Unit for Omron PLCs in the CJ/NJ series controllers. It provides serial communication capabilities, allowing the PLC to interface with other devices such as PCs, HMI and other controllers.

Key Features:

• Multiple Serial Ports:
  • The SCU31-V1 has 2 serial ports that support RS-232C and RS-485/422 communication.
  • It enables the PLC to communicate with various serial devices simultaneously.
• Protocol Support:
  • Supports Modbus-RTU (Master/Slave) protocol.
  • Allows the creation of custom communication protocols using Omron’s CX-Protocol software.
• High-Speed Communication:
  • Baud rates up to 115.2 kbps for fast data exchange.
• Flexible Configuration:
  • Configurable communication settings (baud rate, parity, data bits, and stop bits) per port.
  • The ability to switch between RS-232C and RS-485/422 modes depending on the requirements.
• Expansion:
  • Compatible with Omron’s CJ1/CJ2 series backplanes.
  • Can be used with NJ controllers when connected via the appropriate coupler.

Setup Summery Tips:

• Install the SCU31-V1 module securely onto the CJ/NJ PLC rack.
• Set communication parameters through the PLC configuration software.
• If using Modbus-RTU, ensure proper addressing and device configuration.
• For RS-485/422 communication, properly terminate the bus line and configure the switches/settings for multi-drop communication.