Siemens AX Libraries: Timers Are Packages, Not Magic Blocks
June 24, 2026 — Article 18 of the Studying SIMATIC AX series. Timer libraries in SIMATIC AX explained from a TIA Portal engineer point of view: packages, namespaces, documented timer function blocks, and why elapsed timer behavior needs runtime proof.
The apax CLI — Every Command Worth Knowing
May 19, 2026 — Article 14 of the Studying SIMATIC AX series. A walk through every apax command worth knowing — create, install, build, test, dm, and the supporting commands around the edges. With honest notes on the rough edges of the Device Manager subsystem from hands-on use of apax CLI v4.3.0.
Variables and the Type System in SIMATIC AX
May 11, 2026 — How SIMATIC AX organizes variables and types for TIA Portal engineers — VAR_INPUT/VAR_OUTPUT/VAR sections, VAR_GLOBAL and VAR_EXTERNAL contracts, STRUCT and ENUM patterns, typed literals, and the AT keyword for direct addresses. A practical mapping from TIA Portal mental models to AX text.
