Latchline Controls turns old PLC logic into a checked explanation

Field notes

The workflow starts with an exported Allen-Bradley ladder file and produces documentation organized around machine behavior, stops, interlocks, and testing. The public SLC example grew from a 250-rung program into a 187-page specification, while one E-stop status bit is traced through 44 instructions in 43 rungs across eight ladder files. The site marks conclusions that require plant-side confirmation with VERIFY lines, including unresolved input polarity and the possible bypass of three other inputs.