How to Use LLMs to Extract Structured Register Mappings from Unseen Industrial Manuals? Reddit User Seeks Architecture Advice
Plenty_Shine_8250 · reddit · 2026-08-17
Reddit user PlentyShine8250 is building a system to convert industrial communication manuals into a structured catalog for deterministic lookup and RAG/chat. Manuals cover protocols like Modbus and Siemens, but layouts and naming conventions vary. Current pipeline includes PDF extraction, protocol detection, schema matching, etc., but generalizing to unseen layouts is difficult. The user experimented with a local LLM as a constrained schema planner to reduce hallucinations, with mixed results. They seek overall architecture advice, including LLM fallback, table classification, schema matching, retrieval of similar schemas, multi-stage planner/verifier, fine-tuning smaller models, etc., emphasizing traceability and avoiding hallucination.
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