Firmware version 2.2.1

Firmware release – November 2019

Firmware download link: ION7400 series firmware download page

Firmware What's new (PDF):

NOTE: Carefully review this topic before upgrading your meter firmware.


Firmware version 2.2.1 (V002.002.001) contains a number of new features and changes that are designed to expand the functionality of your meter.

This topic lists the new functionality in firmware version 2.2.1, as well as how to obtain additional information and resources.


New product offer PowerLogic™ ION9000T

The ION9000T supports all the features of the ION9000 series meter, plus highspeed transient capture (HSTC). Specialized components and circuitry in the ION9000T allow it to record very fast transients not detectable by other power meters.

Monitoring and analyzing high-speed transients allows the user to identify and understand the impact transients may have on their electrical network.

ION9000T commercial references

  • METSEION95030: base meter without a display
  • METSEION95040: base meter with large full-color touchscreen display (METSERD192)

New functionality

This section lists the new functionality that is added to your meter after you upgrade to firmware version 2.2.1.

Secure protocols

Firmware version 2.2.1 supports secure file transfer protocol (SFTP). SFTP completely replaces FTP. SFTP adds a layer of encryption, through secure socket shell (SSH), that helps prevent unauthorized access, uploads and downloads to the meter. SFTP is used for uploading web pages, transferring COMTRADE files, and for upgrading I/O modules and remote displays.

NOTE: FTP and Telnet protocols are no longer supported.

DNP inactivity timeout

Firmware version 2.2.1 includes a new setup register that you can use to configure DNP timeouts.

Use the Inactivity Timeout register to define how long a meter waits before timing out after no DNP traffic is detected on the port.

NOTE: This timeout only applies if the communications port is set to ETHERNET.

For more information on the DNP Slave Options module, refer to ION Reference (November 2019 or later revision).

Product documentation

New support resources are available on

ION Reference

Download the latest ION Reference (November 2019 or later revision):

New ION modules:

  • HSTC module
  • Data Set Recorder module
  • HSTC Waveform Recorder module

Updated ION modules:

  • DNP Slave Options module

Technical notes

IEC 61000-4-30 compliance and ION meters

New content:

  • Added power quality parameters relevant to the IEC 61000-4-30 standard
  • Added Flagging concept topic

Updated content:

  • Clarified description of Class A measurement

Firmware upgrade procedure