# Rockwell Automation acquires Plex Systems revision history

Append-only Arc G field-change log. Forward-only honesty: events accrue from Arc G adoption.

Acquisition: [Rockwell Automation acquires Plex Systems](/acquisitions/rockwell-acquires-plex-2021.md)

_No events on file. Arc G is forward-only; the recorded event log accrues from Arc G adoption (2026-06-04). For the current state of this acquisition, see the acquisition page._

## Forward-only note

Arc G is forward-only. The event log accrues from the Arc G adoption point. Fields with no events post-baseline equal the current cached value and are not independently verified at any prior date.

_Canonical URL: /acquisitions/rockwell-acquires-plex-2021/history. REST: /v1/acquisitions/3ab916fe-0a69-4eda-979b-0a8ae9cba153/history. HTML: [/acquisitions/rockwell-acquires-plex-2021/history](/acquisitions/rockwell-acquires-plex-2021/history)._