Solutions at Plex, Troy, Mich., enable manufacturers to operate more efficiently by leveraging shop-floor data to improve production, the companies said.
Plex’s applications include manufacturing execution, supply-chain visibility and quality management, the companies said. Plex employs about 500.
Rockwell is the Milwaukee industrial-automation specialist. Shares of the company at last check were 1% higher at $288.48. The stock touched a 52-week high $289.52 on Wednesday.
Rockwell Automation said it would finance the purchase with cash and short-term and long-term debt.
The companies expect to close the deal in in Rockwell's fiscal fourth quarter, subject to conditions including regulatory clearance.
In October last year, Rockwell said it acquired Oylo, a closely held industrial cybersecurity services provider based in Barcelona, Spain. Terms weren't disclosed.
The cloud-based solutions will enable "development teams to digitally prototype, configure and collaborate without investing in costly physical equipment," the companies said.