Do you have the physical ?
Below is a practical, actionable guide to obtaining, installing, and running LogicMaster 90-30 v9.05 (including the v9.05 special patch referenced as “v905”), plus options if you can’t run the legacy software natively on modern Windows. I assume you need the full programming package (editor + communications) for GE/GE Fanuc Series 90-30 PLCs.
If you cannot find or do not want to use the original DOS software, consider these options:
Search for: Logicmaster 9030 or GE Fanuc Logicmaster . Occasionally, users upload floppy disk images (IMG files) or CD ISOs. As of this writing, a few V9.05 files have been archived, but you must combine multiple disk images.
One individual, a resourceful and determined engineer named Alex, became obsessed with finding the Logicmaster 9030 v905 software. With a reputation for being one of the best in the industry, Alex had a reputation for solving seemingly insurmountable problems.
| Issue | Solution | |-------|----------| | "Runtime error 200" on fast PCs | Use a CPU slowdown utility (e.g., MOSLO or SETMUL ) or run in DOSBox with cycles=3000. | | Cannot find configuration file | Ensure the project directory exists. Create default project: C:\LM9030\PRJ . | | Communications timeout | Check cable wiring (GE used non-standard pinouts). Use a true serial port, not USB-serial (some work, many fail). | | Floppy disk read error | Use a KryoFlux or similar to image old floppies. Or contact Emerson for replacement media. |
Map the directory inside DOSBox using the command: mount c c:\lm90 .
Create a 32-bit Windows XP virtual machine using software like VMware or VirtualBox.
has been a staple in industrial automation for decades. Even though the hardware reached its end-of-life in 2019, many systems remain operational, requiring specialized software for maintenance and programming. Logicmaster 90-30 (LM90) V9.05
Logicmaster 90-30 (LM90) is a legacy, DOS-based software package used to program GE Fanuc Series 90-30, 90-20, and Micro PLCs Version 9.05 was one of the final releases for this platform. Control.com Software Availability & Download

