: Required for use with specific models like the Series 90-30 CPU364.

At least 545 KB of free conventional memory required to launch Ge-fanuc 90/30 Programing Software - PLCTalk.net

Logicmaster 9.05 introduced critical updates to support newer hardware and communication protocols available at the end of the Series 90-30 lifecycle:

: Provides real-time ladder logic displays, program annotation, and online diagnostics for troubleshooting. System Requirements and Compatibility