Plex markets Plex Online, a native cloud offering. Rockwell had sales of $6.3 billion for the year ended September 30 and more than 25,000 employees.  Plex, owned by Francisco Partners,  has 500 Plex will operate as part of Rockwell’s Software and Control operating segment which provides leading hardware and software offerings for the design, operation, and maintenance of production automation and management systems. Plex, which as about 700 customers, was acquired by Francisco in 2012. Rockwell has a broad range of products, including industrial computers and monitors and a large number of electrical offerings, including circuit and load protection, power supplies, drives and motors, and lighting, motion and. Motor control.