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HART Network Unit (HNU) - HART Communication Interface
![Overview](https://www.azbil.com/products/factory/solution/equipment-asset-management/hart-foundation-fieldbus/hdfs-system/hfbs-hnu/image/hnu_01_1.jpg)
The HART Network Unit (HNU) is a communication interface unit between HART-compatible devices (HART devices) and Azbil's device management system, InnovativeField Organizer (IFO).
The HNU enables any DCS and/or PLC to communicate with HART devices and with IFO by individual wiring to analog I/O terminals of the DCS, PLC or marshaling panel.
The HNU features fast one-second updates for all points by using 16-channel parallel simultaneous communication, as well as flexible installation to existing systems. It provides convenient IFO device management to all HART device users.
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