Works offline. Every calculation runs on your device, no signal needed. Install the BAS Field Reference app to keep it on your phone.
How to use it
- Enter the address exactly as your device's register map lists it.
- The tool identifies the table, the zero-based offset, and which function codes apply.
- Use the offset when your master asks for a “register address” and the conventional number when it asks for a “data model” address.
- When a read returns the wrong point by exactly one, this is almost always why.
Background reading: Chapter 4 — Modbus →
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More where this came from
These tools come out of the book — a field reference for BACnet, Modbus, LonWorks, OPC UA and the diagnostic method that works across all of them.
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