Technical Description

The ANR10D-410 is a high-performance Node Interface Unit (NIU) designed for high-availability Yokogawa distributed control systems. It serves as the primary gateway between field-level I/O modules and the control network, providing dual-redundant ER Bus communication to ensure continuous process data flow even in the event of a single bus failure.

The unit also functions as a mounting and interface hub for a variety of signal conditioning modules, including voltage, current, temperature (RTD), and pressure inputs. Its compact, rack-mountable design allows seamless integration into standard marshalling cabinets within control rooms.

Technical Specifications

Operational Application

The ANR10D-410 is ideal for large-scale industrial facilities such as:

• Petrochemical plants

• Power generation stations

• Offshore platforms

It acts as a central hub for localized I/O clusters, simplifying field wiring and enabling centralized diagnostics. Its redundant bus capability makes it the preferred choice for fault-tolerant data acquisition, ensuring that controllers consistently receive accurate feedback from field sensors even under network stress or partial bus failure.

Frequently Asked Questions

Does the ANR10D-410 require special software configuration?
Yes. The unit must be mapped in the system engineering station to recognize the specific I/O modules installed in its backplane slots.

Can the ANR10D-410 be used in non-redundant installations?
Yes, but using a single-bus configuration negates the inherent fault-tolerant benefits provided by the dual-redundant ER Bus design.

Is the 20 W power rating inclusive of connected I/O modules?
No. The 20 W rating applies to the NIU itself. The cumulative power consumption of installed I/O modules must be added when sizing the system power supply.