Start with Quick scan
Quick scan searches for readable blocks and narrows them into usable ranges. It is the sensible first pass when you know the Unit ID but do not have a reliable register map.
Use exhaustive mode deliberately
Exhaustive mode can issue one request for every address across all four spaces. That may be useful for isolated addresses, but on a slow or high-latency device it can take hours. Busloom shows the planned request count and requires an explicit start.
Discovery proves readability, not meaning
A successful FC03 read does not tell you whether a word is a float, counter, alarm bitmap, or reserved value. Create a view from the result, inspect raw words, then apply the vendor map and a second operating point before naming tags.
- Per-project scan state
- Progress while the scan is running
- Results separated by address space
- Create a source view from a discovered range