Journal

Field notes, debugging
logs, opinions.

Long-form technical writing on industrial protocols. Mostly Modbus this year. Mostly worked examples. Mostly free of marketing.

2 posts · updated weekly

Modbus exception codes explained: every code, every cause, every fix.

Exception 01 through 11, what each one really means in practice, and how to chase it down with a frame capture.

A short, slightly bitter note about industrial software in 2026 and what we'd like it to be.