Yokogawa ANB10D-410/CU2T CENTUM VP Bus Node Unit

The Yokogawa ANB10D-410/CU2T, also cataloged as the ANB10D-410 Node Unit, operates as a dedicated hardware component for deterministic ESB bus expansion and I/O signal management within CENTUM VP platforms.

Suffix Breakdown & Model Matrix

Hardware Specifications

Process Control and DCS Connectivity

• 4-20 mA HART Loop Protocol: While the unit acts as an ESB bus node, it maintains signal transparency for I/O modules that process 4-20 mA HART loops, ensuring that diagnostic data from field instrumentation reaches the host controller without corruption.
• FOUNDATION Fieldbus / Profibus PA Connectivity: The module supports the high-speed transport of Fieldbus and Profibus PA data packets through the internal backplane, preserving the deterministic timing required for closed-loop process control.
• Channel-to-Channel Isolation: The backplane architecture utilizes high-impedance isolation buffers to separate individual I/O channels, effectively mitigating cross-talk and protecting the node from electrical faults occurring at field connection points.
• Cold Junction Compensation (CJC): The unit is engineered to support thermocouple-based I/O modules by ensuring a stable thermal environment for CJC circuitry, which is necessary for achieving high-precision temperature monitoring in control cabinets.

Frequently Asked Questions (FAQ)

Q: Can this unit be deployed as an intermediate node in the ESB bus chain?

A: No. The /CU2T configuration includes integrated S9564FA terminators, making this unit specific to end-of-chain or terminal node applications to prevent signal reflection.

Q: Are the dual power supplies hot-swappable during system operation?

A: Yes. The unit supports active-active power redundancy, allowing for the removal and replacement of a single power supply module without interrupting the communication or power delivery to the connected I/O sets.

Field Installation Guidelines

• Mechanical Mounting: Secure the chassis into a standard 19-inch rack using the provided M5 hardware. Ensure the unit is electrically bonded to the cabinet ground bus to provide an effective shield against electromagnetic interference.
• Termination Verification: As this unit serves as the terminal node, ensure all upstream nodes in the ESB bus chain have their internal terminators disabled (or are appropriately configured) to maintain a correct 120-ohm impedance load at the end of the line.
• Power Wiring: Terminate the 100-120 V AC inputs to the redundant power terminals. Use dedicated circuit breakers for each power feed to isolate the node from localized power supply failures.
• Cable Management: Route ESB bus cabling through segregated wire ways to prevent inductive coupling from high-voltage AC lines. Ensure that the CU2T connector is fully seated and the locking mechanism is engaged.
• Validation: Verify link status indicators on the front panel post-installation. Confirm that the node is recognized by the Field Control Unit (FCU) via the system engineering terminal to ensure bus synchronization.