The Omron CS1W-SCB41-V1, also cataloged as the CS1W-SCB41-V1 Serial Communication Board, operates as a dedicated hardware component for serial protocol conversion and data framing within SYSMAC CS1 CPU units.

Part Number Nomenclature

• CS1W Subsystem Identifier: Specifies internal CPU slot option board compatibility designed exclusively for CS1 architecture.
• SCB Serial Class: Identifies direct-bus serial communication interface board hardware.
• 41 Port Configuration: Indicates 1 x RS-232C port plus 1 x RS-422/485 serial port layout.
• V1 Version Designation: Denotes updated hardware revision supporting protocol macro execution and enhanced baud rate control.

Hardware Technical Parameters

Backplane Synchronization and Execution Dynamics

The board processes custom serial framing routines directly on its integrated processor, maintaining internal CPU backplane bus communication velocity during intensive serial data exchange. High firmware flash compatibility allows seamless synchronization with CPU execution cycles, enabling high-density field network routing without increasing main program scan latencies during multi-port serial execution.

Order Package Contents

• 1 x Omron CS1W-SCB41-V1 Serial Communication Board
• 1 x RS-422/485 Terminal Block Connector
• 2 x Board Retention Screws

Cabinet Assembly and Mounting Procedures

• Power Interruption Rule: Completely isolate main power to the CPU rack before removing the CPU option slot cover and seating the board.
• Board Alignment: Insert the board straight into the internal CPU connector and tighten both mounting screws to secure mechanical ground.
• Shield Grounding: Connect cable shields to the connector ground shells or earth terminal to mitigate differential-mode noise interference.
• Terminating Resistor: Set the physical RS-422/485 DIP switch to ON at both end-nodes of a multi-drop network segment.

Technical FAQ

• Can the CS1W-SCB41-V1 board be installed or replaced while the CPU rack is powered?

  No, the option board must be installed or removed only when the CPU power supply is fully de-energized to prevent circuit damage.

• What supplies the electrical operating power for the option board?

  Operating current of 0.28 A is drawn directly from the 5 VDC internal logic rail supplied via the CPU backplane interface.

• Can the RS-232C and RS-422/485 ports operate independently at different baud rates?

  Yes, both ports can be independently configured for distinct communication protocols, frame formats, and baud rates.

• What protocol mode enables custom third-party serial messaging?

  The Protocol Macro function allows custom ASCII or binary message frames to be created using CX-Protocol and executed by the board.

• How are node addresses set for multi-drop RS-485 configurations?

  Node unit numbers are defined via CPU memory allocated settings or software parameters, depending on the selected protocol mode.

• What is the maximum transmission distance for the RS-422/485 port?

  The maximum cumulative cable length for the RS-422/485 network line is 500 m when using approved shielded twisted-pair wire.

• What status does the COMM LED indicate during field operation?

  Flashing COMM LEDs indicate active data transmission (TX) or reception (RX) activity on the respective serial communication port.

• How is two-wire versus four-wire mode configured on the RS-422/485 port?

  Operational mode is selected via the onboard hardware slide switch located near the RS-422/485 terminal connector block.