Document change log

Updates (changes and additions) to this document are listed below.

September 15, 2022

  • Edited topic about history name character limit to clarify Niagara 4.12 dependency.
  • Added new topic “ History Group Ux Manager view” to the “History plugins” chapter.

January 24, 2022

Added note for history name character limit and opt-in function in “About history names” topic.

November 9, 2021

Added sections documenting the “Rdb Archive History Provider” and “Batch histories capacity”.

January 7, 2021

Rewrote and added tasks for managing histories export and import.

February 14, 2020

  • Added topics and text for the Security History Service, a feature of Niagara 4.9.
  • Simplified the organization combining similar topics.
  • Updated three missing IDs for help topics.

January 10, 2019

Updated the description for the Close Unused Histories action in the topic, “History Service actions”, noting where the Max Open Time property is configured in Niagara 4.0 and later.

December 6, 2018

In the Reference chapter edited the topic, “History Extensions”, to add the Change Tolerance, Min Rollover Value, and Max Rollover Value property.

Updated Histories Guide for changes in Niagara 4.7.

April 21, 2017

In the Components chapter edited the topic, “History Service properties”, to remove the Max Open Time property which is removed from the Service in Niagara 4.0 and later.

September 17, 2015

Minor editorial changes.

August 18, 2015

Initial release for Niagara 4.0