• Estimated Lead Time : In stock. Usually ships in 7-10 working days

• Manufacturer : Omron

• Device name : Serial Communications Unit

• Classification : CPU Bus Unit

• Model number : CJ1W-SCU31-V1

• Serial ports :- Port 1 : RS-422A/485

• Port 2 : RS-422A/485

• Protocol :- Port 1 : Host Link, protocol macro, NT Link, or loopback test can be selected for each port.

• Port 2 : Unit Ver. 1.2 or later also supports Serial Gateway, no- protocol, and 1:1 Host Link modes. (Note: The Serial Gateway can also be executed in protocol macro mode.) *1 Unit Ver. 1.3 or later also supports Modbus-RTU slave mode.

• Number of mountable Units : - CPU Unit : None

• CPU Rack : A total of up to 16 Units, including all other CPU Bus Units. No restrictions on the mounting location.

• Expansion Rack : Data exchange with the CPU Unit :-

• Ordinary refreshing of software switches and status : Allocated 25 words of the 25 words in the CPU Bus Unit CIO Area (constant data exchange with the CPU Unit)

• Transfer from the CPU Unit set by the system : Of the CPU Bus Unit DM Area, each serial port is allocated 10 words (total 20 words). Data is transferred from the CPU Unit at the following times: Startup or restart Ladder instruction: STUP (237) Port Settings Changing Flag turns ON (Auxiliary Area)

• Simple Backup Function : The CPU Unit's Simple Backup Function can be used to backup the Protocol Macro data in the Serial Communications Unit to the CPU Unit's Memory Card. The backed-up data can be restored or compared. (The Simple Backup Function can be used with the CJ1-H and CJ1M CPU Units only.)

• Current consumption *3 : 380mA

• Weight : 110g Max.

• General specifications : Conforms to general specifications for CJ Serise.

• Shipping Weight : 2 Kg.