Yokogawa ANB10D-223 S2 CENTUM VP/CS 3000 ESB Bus Unit

Configured for high-speed data transmission in CENTUM VP / CS 3000 platforms, the Yokogawa ANB10D-223 S2 (ANB10D-223 S2 Dual Node ESB Bus Unit) provides direct physical/electrical execution. It functions as the primary communication routing bridge linking a central Field Control Unit (FCU) to decentralized downstream I/O modules across a deterministic network backplane.

Hardware Specifications

4-20 mA HART Loop Protocol & Channel Isolation

This bus unit coordinates the transmission of multi-channel data packets, including digitized 4-20 mA HART loop protocol parameters, across the 10 Mbps backplane. The physical architecture establishes galvanic channel-to-channel isolation parameters between adjacent slot locations. This isolation blocks common-mode voltage fluctuations and ground potential differences from altering raw field sensor inputs, preserving communication packet sequence timing under heavy EMI loads.

Frequently Asked Questions

Q: How does the dual-redundant configuration handle an independent bus interface failure?

A: The dual node structure operates parallel communication pathways simultaneously over the ESB bus. If one interface line encounters an electrical fault or physical break, data transmission switches immediately to the healthy path within sub-10ms cycle boundaries, preventing process loop disruptions.

Q: Can the 24 VDC inputs operate from separate power grid sources?

A: Yes. The dual 24 VDC terminals are physically isolated inside the base logic assembly. Connecting them to independent power supplies or battery banks provides real-time system supply redundancy.

Field Installation Guidelines

• Install the assembly into a standard 19-inch structural rack or flat vertical panel space using the specified manufacturer mounting screws to check mechanical deflection.
• Maintain clear vertical spacing above and below the card cage assembly to permit unimpeded convective airflow and hold temperatures within the 0 to +60 deg C operational threshold.
• Route the high-frequency ESB bus interface cables away from high-current AC supply lines to minimize data transmission frame losses.
• Terminate all system chassis earth connections directly to a low-resistance plant instrumentation ground bus to maintain signal reference integrity.