Object-Oriented Programming in STone
A Complete Guide
04.04.2026
Hubert
~20 min read
Object-Oriented Programming in STone
A Complete Guide This article is a collection of rules and conventions for object-oriented programming in …
STone
OOP
Structured Text
PLC
automation
What's Inside a CAREL c.pCO Controller? Architecture of an HVAC/R PLC
12.03.2026
Hubert Lepiarczyk
~9 min read
If you work in industrial refrigeration or HVAC, you’ve almost certainly programmed a CAREL controller. But have you ever wondered what’s …
carel
cpco
plc
rtos
hvacr
embedded
iec-61131
Complete OpenVPN Setup for Carel Boss Devices on Rocky Linux 9.5
31.08.2025
Hubert Lepiarczyk
~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 …
openvpn
carel
boss
rocky-linux
vpn
ot-security