Logicmaster 90 (LM90) is a legacy, DOS-based software used to program and configure GE Fanuc Series 90-30, 90-20, and 90-70 PLCs. As of 2021, the software is considered and is no longer actively developed or supported by GE or Emerson, who acquired the product line. Official Status and Availability
Since Logicmaster is a 16-bit application, it will not run natively on 64-bit Windows systems.
However, running a 16-bit DOS application on modern 64-bit industrial workstations introduces significant software configuration, emulation, and communication driver bottlenecks. Core Architecture of LM90 Software
While it is legacy, it is still proprietary software. However, because it is no longer actively sold or supported by Emerson (GE), it is often traded in legacy support circles.
Install or Windows XP Professional (32-bit) inside the virtual machine.
By 2030, most insurance carriers and regulatory bodies (e.g., OSHA, EPA) will likely mandate that critical control systems run on supported software. If your facility still relies on LM90, create a migration plan:
