Yokogawa ANB10D-125/CU2N Node Unit

The Yokogawa ANB10D-125/CU2N, also cataloged as the ANB10D-125/CU2N ESB Bus Node Unit, operates as a dedicated hardware component for node expansion and I/O communication routing within CENTUM VP distributed control architectures.

Suffix Breakdown & Model Matrix

• ANB10D: Base model designation for the ESB Bus Node Unit.
• -1: Indicates the 100-120 V AC power supply variant.
• -25: Specifies the basic type configuration without explosion protection.
• /CU2N: Designates the inclusion of the non-terminator type ESB Bus connector interface for daisy-chain configurations.

Hardware Specifications

4-20 mA HART Loop Protocol and Channel Isolation

The ANB10D-125/CU2N manages signal transmission and node interfacing across up to 8 FIO modules while maintaining high-speed ESB bus synchronization. The 4-20 mA HART loop protocol compatibility enables analog sensor measurements and digital communication packets to coexist without signal degradation or cross-talk across control channels. Channel-to-channel isolation parameters and integrated insulation bushes protect internal logic circuits from ground loops and electrical transients originating in the field wiring. Cold junction compensation (CJC) and precise thermal regulation maintain conversion stability across the entire 0 deg C to 50 deg C operational range.

Frequently Asked Questions

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

A: Yes, the unit is engineered with a dual-redundant power supply architecture supporting 100-120 V AC or 24 V DC inputs to maintain continuous operation during power module failure.

Q: What purpose does the /CU2N suffix option serve on this node?

A: The /CU2N option equips the unit with non-terminator type ESB bus connectors intended for daisy-chain topology expansion between nodes.

Q: Can this unit be serviced or replaced while the control cabinet is energized?

A: Power supply and communication modules support hot-swap procedures under specific maintenance protocols, but complete power isolation of the node is recommended when altering backplane connections.

Field Installation Guidelines

• Mount the 19-inch rack chassis securely into the industrial cabinet using M5 screws and ensure proper chassis grounding via the designated earth points.
• Verify that supply voltage levels match the 100-120 V AC or 24 V DC input ratings and remain de-energized prior to wiring termination.
• Connect the ESB bus cables securely to the /CU2N connector interfaces, ensuring proper termination at the end of the bus line according to system design rules.
• Maintain a minimum vertical clearance of 50 mm above and below the chassis housing to allow unrestricted convective airflow through the thermal dissipation vents.