Demo stand: payments are not connected — 'unlock export' is free and just demonstrates the feature.

Check your PLC code in 5 seconds

Upload a PLCopenXML export — get a report on common mistakes: tag typos, uncalled timers, unreachable curve branches, lost fractions, dead code.

How to export a PLCopenXML file? → · Check the whole project in batch (Pro) →

What we check

Array out of boundsliteral index outside the declared bounds

Infinite loopWHILE TRUE with no exit — watchdog

Division by zeroliteral /0 and MOD 0

CASE without ELSEunhandled selector values

gvl.* typosreferences to globals not declared in the GVL

Uncalled timersTON/TP/R_TRIG read, but the FB is never called

Unreachable branchesIF x<T … ELSIF x>=T … — dead ELSIF

Lost fractionsinteger division, REAL_TO_TIME/WORD truncation

Dead codePOUs that are never called

Magic numbersraw constants in logic without a name

Namingcryptic single-character names

CommentsPOUs with logic and not a single note

Copy-pastestructurally duplicated blocks and loops

Routine sizebloated POUs — candidates for decomposition

Self-assignmentx := x — typo/lost logic

Empty branchesforgotten logic in IFs/loops

Dead variablesdeclared but never used

Tidinessdouble ;; and other litter

Every finding comes with suggested fixes and code examples.

Processing happens in memory — the uploaded code is not stored. The tool advises; code changes are up to the engineer (see what the linter can't see).