Yokogawa ANB11D-215/BU2A/NDEL CENTUM VP

Configured for optical node data communication and remote I/O expansion across CENTUM CS3000 and CENTUM VP control platforms, the Yokogawa ANB11D-215/BU2A/NDEL (ANB11D-215/BU2A/NDEL ESB Bus Node Unit) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

• ANB11D: Base model designation for the ESB Bus Node Unit with an integrated optical repeater.
• -2: Indicates the 100-240 V AC wide-range power supply input configuration.
• -15: Specifies the basic structural variant without explosion protection.
• /BU2A: Designates the connector assembly providing a secure ESB bus interface with integrated termination.
• /NDEL: Identifies the specific hardware option package for extended optical data routing.

Hardware Specifications

4-20 mA HART Loop Protocol and Channel Isolation

The ANB11D-215/BU2A/NDEL processes optical fiber communication links extending up to 5 km while delivering regulated +5 V DC and +24 V DC internal power outputs to attached I/O cards. The 4-20 mA HART loop protocol compatibility ensures that analog process measurements and digital diagnostic packets transmit concurrently across distributed network layers without degradation. Channel-to-channel isolation parameters and noise-immune optical transceivers protect internal logic processing arrays from common-mode electrical transients and ground loops originating in remote field enclosures. Cold junction compensation (CJC) and internal thermal regulation maintain signal conversion linearity across the 0 deg C to 55 deg C operational range.

Frequently Asked Questions

Q: What is the maximum transmission distance supported by the integrated optical repeater?

A: The optical link interface supports communication distances of up to 5 km between the Field Control Unit and the remote node unit using fiber optics.

Q: Does this node unit support dual-redundant power configurations?

A: Yes, the system architecture accommodates dual-redundant power modules operating on a wide-range 100-240 V AC supply to maintain continuous operation during power source faults.

Q: What internal DC voltage rails are generated to support connected I/O modules?

A: The internal power supply delivers regulated +5 V DC at 10 A and +24 V DC at 3 A directly to the backplane bus.

Field Installation Guidelines

• Mount the node unit enclosure securely into the industrial cabinet or rack structure using appropriate mounting fasteners and ensure low-resistance bonding to earth ground.
• Verify that the 100-240 V AC input power source is de-energized prior to wiring terminal blocks or inserting power supply modules.
• Handle and route optical fiber cables carefully, observing minimum bend radius limits to prevent attenuation or damage to the glass cores before mating with the /BU2A interface.
• Maintain adequate vertical and horizontal clearance around the 210 mm x 130 mm x 250 mm housing to allow unhindered convective cooling across thermal dissipation surfaces.