Product Details
The Yokogawa BUS2, also cataloged as the BUS2 FCU Bus Interface Module, operates as a dedicated hardware component for high-speed deterministic data exchange between the FCU CPU processor and downstream I/O node units within AFV30, AFV40, A2FV50, and A2FV70 platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | BUS2 |
| Brand | Yokogawa |
| Origin | Japan |
| Module Type | FCU Bus Interface Module |
| System Compatibility | Yokogawa CENTUM VP / CS 3000 |
| Host Compatibility | AFV30, AFV40, A2FV50, A2FV70 FCU Base Units |
| Function | High-speed communication between FCU CPU and I/O nodes |
| Weight | 0.45 kg |
| Dimensions | Standard Field Control Unit Chassis Interface Slot |
| Operating Temp | -20 to 60 deg C |
| Power Consumption | Powered via FCU Backplane Bus Rail |
Yokogawa FOUNDATION Fieldbus & DCS Bus Isolation
Yokogawa FCU interface architectures maintain deterministic high-speed serial bus execution between execution controllers and remote node racks. The internal circuitry limits transmission attenuation and latency while routing diagnostic signals alongside 4-20 mA HART loop protocol pairs and FOUNDATION Fieldbus segments. Dedicated channel-to-channel isolation on the backplane interface prevents high-frequency common-mode noise propagation across local control nodes.
Frequently Asked Questions
Q: How does the BUS2 module maintain signal integrity during backplane bus communication cycles?
A: The module utilizes hardware-level differential transceivers and internal board-level shield isolation to suppress electromagnetic interference during continuous high-speed data frame transfer between the FCU processor and remote I/O units.
Q: What precautions must be taken regarding backplane power consumption when installing the BUS2 module in an AFV series FCU rack?
A: The module draws power directly from the internal FCU backplane supply rail; verify total backplane current draw limits before insertion to avoid overloading the primary FCU power supply module.
Field Installation Guidelines
Insert the BUS2 module cleanly into the designated FCU slot (within AFV30, AFV40, A2FV50, or A2FV70 base units) until the card edge connectors fully seat into the backplane bus. Hand-tighten top and bottom retaining screws to ensure proper grounding pin contact and prevent backplane disconnection caused by ambient enclosure vibration. Maintain single-point earth grounding at the enclosure earth bar and ensure all field communication cables are routed away from high-voltage AC distribution.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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