Designing Modbus Register Maps That Integrators Can Actually Use
A practical manufacturer-focused approach to Modbus register-map design, based on how PLC and BMS integrators actually consume a device interface.
Resources for
Integration and interface resources for equipment manufacturers and OEMs whose products connect to building automation systems.
Develop products that are easier to integrate into real building automation systems. This page collects manufacturer-focused Modbus, interface and integration material.
A practical manufacturer-focused approach to Modbus register-map design, based on how PLC and BMS integrators actually consume a device interface.
Modbus documentation and register map consulting from a building automation integrator's perspective.
A focused explanation of Modbus protocol offsets, one-based register numbers and 40001-style references with practical examples.
Learn why antenna orientation matters and how vertical versus horizontal placement can affect wireless links.
Compare 868 MHz and 2.4 GHz for building automation, including path loss, penetration, antenna size, congestion and typical use cases.
Practical wireless building automation guide covering RF fundamentals, frequency bands, antennas, interference, signal quality and gateway placement.
Practical Modbus RTU and TCP guide covering RS-485, registers, frames, function codes, CRC, raw values and troubleshooting.
A practical pre-release Modbus test plan that checks the interface from the customer's side instead of only proving that basic communication works.
The purpose of this site is to teach and share automation and programming knowledge through various tools, guides, and articles.
Free online Modbus decoder and parser for Modbus RTU and Modbus TCP frames. Decode function codes, device addresses, register addresses, values, CRC results and exception responses …