What is "DAN1" in the ION register map?

Issue
A user would like to know what "DAN1" means in an ION meter's Modbus register list and ION Events log.

Product Line
ION86x0
ION8300, ION8400, ION8500
ION76x0/ION75x0
ION7400
PM8000

Environment
ION Event log
Modbus register list

Resolution
DAN1 stands for Disturbance Analyzer Module 1
DAN2 stands for Disturbance Analyzer Module 2
DAN3 stands for Disturbance Analyzer Module 3
DAN4 stands for Disturbance Analyzer Module 4
DAN5 stands for Disturbance Analyzer Module 5
DAN6 Stands for Disturbance Analyzer Module 6

The Disturbance Analyzer module monitors three inputs for disturbances. These disturbances are defined as a percentage deviation from a nominal value. When a disturbance is detected, the module provides pulses to indicate the start and end of the disturbance, as well as which input the disturbance occurred on. Numeric characteristics, such as the magnitude and duration of the disturbance, are also provided.
The Disturbance Analyzer module can be used to detect interruptions as described in the IEC 61000-4-30 standard.

More information on Disturbance Analyzer module and how to set it up can be found in ION Architecture & ION Modules Reference guide.

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