CJ1W-SCU42 High-Speed Serial Communication Unit for Omron CJ1 Series PLCs
Omron High-Speed Serial Communication Unit CJ1W-SCU42
Omron High-speed Serial Communication Unit CJ1W-SCU42
Communication interface: 1 RS-232C port and 1 RS-422A/485 port.
For CJ-series systems, the following functions can be selected per port:
Protocol macro, Host link, NT link (1:N mode), Serial gateway, No-protocol 3, MODBUS-RTU slave.
For NJ-series systems, the following functions can be selected per port:
Protocol macro, Serial gateway, No-protocol 3, MODBUS-RTU slave.
This unit supports high-speed serial communication with external devices. Each unit provides two serial ports (RS-232C and RS-422A/485), and the communication method can be set individually per port from options such as protocol macro, host link, NT link, serial gateway, and no-protocol.
By installing up to 16 CPU Bus Units (including these serial communication units) to a CPU Rack or Expansion Rack, a system with up to 32 serial communication ports can be configured.
Connecting an NT-AL001 RS-232C/RS-422A link adapter to the RS-232C port enables 1:N communication.
With the CJ1W-SCU@2 series, higher communication speeds (up to 230.4 kbps) and faster data transfer with the CPU unit allow connection to high-speed external devices.
The Omron High-speed Serial Communication Unit CJ1W-SCU42 is a versatile communication module designed for industrial automation systems. It features two independent serial communication ports: one RS-232C port and one RS-422A/485 port, providing flexible connectivity options for various external devices.
When used with CJ-series PLC systems, each port can be individually configured to support one of the following communication functions:
●Protocol Macro
●Host Link (Upper-level Link)
●NT Link (1:N Mode)
●Serial Gateway
●No Protocol 3
●MODBUS-RTU Slave
For NJ-series machine automation controllers, the available functions for each port are:
●Protocol Macro
●Serial Gateway
●No Protocol 3
●MODBUS-RTU Slave
This serial communication unit is engineered for high-speed connectivity with external devices. By utilizing the CJ1W-SCU42, users can achieve faster communication speeds of up to 230.4 kbps and benefit from accelerated data transfer with the CPU unit, making it suitable for demanding applications requiring rapid data exchange.
The system offers significant scalability: up to 16 CPU Bus Units (including these serial communication units) can be installed to a CPU Rack or Expansion Rack, enabling the creation of a system with a maximum of 32 serial communication ports.
An additional feature is the use of the NT-AL001 RS-232C/RS-422A Link Adapter. When connected to the RS-232C port, this adapter enables 1:N communication, allowing one port to communicate with multiple devices.
In summary, the CJ1W-SCU42 provides a powerful, flexible, and high-performance solution for integrating serial communication into Omron's CJ and NJ automation platforms, supporting a wide range of industrial protocols and network configurations.
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