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Omron CJ1 CJ1W-SCU21-V1

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CJ1W-SCU21-V1

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The CJ1W-SCU21-V1 is a serial communications CPU bus unit developed by Omron for the CJ1 series. Featuring dual RS-232C communication ports, this unit facilitates multiple communication protocols including Host Link and Modbus-RTU slave.

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Technical specifications for CJ1W-SCU21-V1

ManufacturerOmron
Product TypeSerial Communications CPU Bus Unit
Product LineCJ1
Part NumberCJ1W-SCU21-V1
Weight0.50 lbs (0.23 kg)
Communication ProtocolHost Link, NT Link, Protocol Macro, Serial Gateway, and Modbus-RTU Slave
Current Rating (5V)280 mA (+0.15 A per connected NT-AL001 adapter)
Communication Interface2x RS-232C ports
Baud Rate1,200 to 57,600 bps
Operating Temperature Range0°C to 55°C
Storage Temperature Range-20°C to 70°C (excluding battery)
Relative Humidity Range10% to 90% (no condensation)
Installation Altitude2,000 m or less
Mountable UnitsUp to 16 CPU Bus Units per rack
Communications Distance15 m max.
Connector Type9-pin D-Sub (male)
Noise Immunity2 kV on the power supply line
MountingCPU Rack/Expansion Rack Mount
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Omron's CJ1W-SCU21-V1, part of the CJ1 series, is engineered as a serial communications CPU bus unit. This compact unit weighs only 0.24 lbs and features robust connectivity options. It incorporates two RS-232C ports, allowing for expansive communication capabilities. The device supports several protocols, which include Host Link, NT Link, Protocol Macro, Serial Gateway, and Modbus-RTU Slave, making it versatile within various applications.

In terms of power requirements, it has a current rating of 280 mA at 5V, with an additional consumption of +0.15 A for each connected NT-AL001 adapter. Moreover, the CJ1W-SCU21-V1 accommodates baud rates from 1,200 to 57,600 bps, providing suitable options for different data transfer rates. Operating in temperatures of 0°C to 55°C, this unit is designed to function reliably in a range of industrial settings. It also has a storage temperature capability of -20°C to 70°C, excluding the battery, enabling safe storage in various conditions.

Humidity parameters are supported from 10% to 90% without condensation, facilitating functionality in typical industrial environments. This unit is mountable in both CPU racks and expansion racks, supporting a maximum installation of 16 CPU bus units per rack. The maximum communication distance achievable is 15 meters. The connection to other devices is facilitated through a 9-pin D-Sub (male) connector. Additionally, the CJ1W-SCU21-V1 includes noise immunity with a rating of 2 kV on the power supply line, enhancing its durability and reliability in noisy electrical environments.