Yokogawa ANB10D-421/CU2N/NDEL Node Unit for CENTUM VP

Suffix Breakdown & Model Matrix

Hardware Specifications

4–20 mA HART Loop Integration and Channel Isolation

When populated with compatible analog input/output modules, the node supports 4–20 mA HART loop protocol on per-channel basis. Installed I/O cards provide channel-to-channel isolation to suppress ground loops. Thermocouple input modules execute cold junction compensation (CJC) locally at the module level; the node backplane distributes the ESB bus clock and data transparently without signal conditioning.

Frequently Asked Questions

Q: Is hot-swap supported for I/O modules in this node unit?

A: Yes for most Yokogawa I/O modules rated for online replacement; verify per-module manual and de-energize the specific slot if required by the module specification.

Q: What happens if one of the dual-redundant AC power supplies fails?

A: The second PSU assumes full load automatically with no interruption to ESB bus communication or I/O scanning.

Q: Which ESB bus cables are required for connection to the FCU?

A: Use Yokogawa YCB301 ESB bus cables and confirm FCU-side interface module (e.g. EC401/EC402) matches the dual-redundant topology.

Field Installation Guidelines

Mount the node in a standard 19-inch rack using appropriate hardware. Connect both AC power feeds to independent UPS/utility phases for redundancy. Insert ESB bus interface modules (typically in slots 7–8) before connecting YCB301 cables. Bond the rack chassis to plant earth ground with a minimum 6 mm² conductor. Segregate low-level signal wiring from AC power and bus cables. Do not power up until all I/O modules are fully seated and conformal coating is verified intact in corrosive environments.