The Carel STone build error that was really an empty Git repo
25.07.2026
~6 min read
The compiler was happy. 26,708 lines of Structured Text compiled, zero errors, memory budget green. Then the build died on the very last …
How to ship a .pack for a Carel STone controller that just works
11.07.2026
~5 min read
Embed profiles, configuration and languages into one .pack, so a brand-new, blank controller runs the full application from the first …
Monitoring your Carel BOSS devices over Redfish — from zero to a working API
26.05.2026
~8 min read
Carel BOSS has a quietly powerful feature that almost nobody uses: a built-in Redfish server. With a bit of setup you can read live data …
What's Inside a CAREL c.pCO Controller? Architecture of an HVAC/R PLC
12.03.2026
~9 min read
If you work in industrial refrigeration or HVAC, you’ve almost certainly programmed a CAREL controller. But have you ever wondered …
Complete OpenVPN Setup for Carel Boss Devices on Rocky Linux 9.5
31.08.2025
~5 min read
Prerequisites Rocky Linux 9.5 server with root/sudo access Public IP or domain name reachable on 1194/UDP Boss web access to upload client …