Yokogawa AFV10D-S41451 Control Units

The Yokogawa AFV10D-S41451, also cataloged as the AFV10D Duplexed Field Control Unit, operates as a dedicated hardware component for Vnet/IP communication and field I/O processing within CENTUM VP control system platforms.

Suffix Breakdown & Model Matrix

Hardware Specifications

Process Control and DCS Characteristics

• 4-20 mA HART loop protocol: The unit manages FIO (Field I/O) communication, supporting pass-through of HART protocol data from field instrumentation to the control function for asset management and process monitoring.
• FOUNDATION Fieldbus / Profibus PA connectivity: Integration with the field control station allows for high-speed deterministic data exchange, supporting standardized digital bus communications within the CENTUM VP architecture.
• Channel-to-channel isolation: The modular design ensures electrical isolation between internal processing boards and field I/O segments, maintaining signal integrity and protection against common-mode noise across the I/O bus.
• Cold junction compensation (CJC): The unit interfaces with associated FIO modules that provide precise thermal compensation for thermocouple-based temperature measurement inputs.

Frequently Asked Questions

Q: Is this unit compatible with the previous AFV10D-S41401 model?

A: Yes. The AFV10D-S41451 is designed as a direct functional replacement for the AFV10D-S41401 unit.

Q: Can the dual-redundant power supplies be removed during operation?

A: Yes. The power modules are hot-swappable. As long as one module remains operational, the unit will maintain power continuity to the control function without system reset.

Field Installation Guidelines

• Mounting: Secure the AFV10D unit into a standard 19-inch industrial rack. Ensure the chassis is mechanically bonded to the rack frame to maintain structural integrity under vibration and provide proper thermal ventilation.
• Grounding: Connect the chassis ground terminal to the site protective earth (PE) bus using a low-impedance conductor. Proper grounding is mandatory to prevent electromagnetic interference (EMI) on the dual-redundant Vnet/IP ports.
• Wiring: Maintain strict physical segregation between the 24 V DC power input lines and FIO/Vnet/IP communication cables. Use appropriate strain relief for all field cables to protect internal backplane connectors from mechanical stress.