Logicmaster 90 (LM90) is an obsolete, DOS-based software package originally developed by GE Fanuc to program and communicate with Series 90-30, 90-20, and 90-70 PLCs. While it was a standard tool in the 1990s, it is no longer supported by GE Automation (now part of Emerson). Current Status and Downloads
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: Some sources mention a 30-day trial version originally provided by GE Fanuc, though these are now rare to find through official channels. Compatibility and Versions Operating Systems Logicmaster 90 (LM90) is an obsolete, DOS-based software