In CODESYS, splitting a string is not a single "built-in" operation like in high-level languages (e.g., Python's
The standard FIND does not accept a start position in all CODESYS versions. You may need to repeatedly use RIGHT(sWork, LEN(sWork)-iCurrentPos+1) as a workaround.
In the world of industrial automation, we often fantasize about a world of pure, typed data structures—DINTs, BOOLs, and STRUCTs passing seamlessly between PLCs. However, the reality of shop floor engineering is messy. Whether you are parsing barcodes from a vision system, reading CSV files from an SD card, or processing HTTP API responses, you will inevitably encounter one of the most common hurdles in IEC 61131-3 programming: .
: Designed for strings longer than 255 characters.
Standard CODESYS strings are limited (often 255 or 1024 characters). If you expect larger data, consider using WSTRING (Unicode) or dynamic memory via pointers (advanced).