Cheatsheets for the everyday stack
A set of plain-HTML reference pages for the tools an automation engineer touches every day, from Structured Text and Modbus registers to systemd and regex.
Automation work crosses a lot of toolchains in one day: Structured Text in the morning, a Linux shell on a controller after lunch, a Modbus register map, a docker container for the HMI, then git to keep all of it straight. The cheatsheets at ref.plcbench.dev are the pages I kept wanting open in a tab.
What’s there
- Automation: Structured Text, Modbus and OPC UA, and real-time Linux
- Linux and ops: Ubuntu CLI, shell scripting, systemd, docker
- Code: Python, Node.js, PowerShell, SQL, regex
- Web: HTML and CSS, HTTP and HTTPS
- Everything else: git
How it’s built
Deliberately boring. Each sheet is a single static HTML file with no build step and no framework. It’s served by nginx on a Raspberry Pi and published through a Cloudflare Tunnel, the same pattern as the remote access note, minus the login gate. Updating it means git pull on the Pi.
The index page has a search box and a filter by stack. The pages are made for quick lookups, not for reading start to finish.