Data Types
Reference for tag data types in rungs.dev — BOOL, DINT, REAL, TIMER, COUNTER, FBD_TIMER, FBD_COUNTER — what each holds and which instructions read or write it.
Tag Usage
Every rungs.dev tag has a usage — Input, Output, or Local — that controls where its value comes from, where it appears in the editor, and whether logic can write to it.
Array Tags
Use array tags in rungs.dev to store lists of BOOL, DINT, REAL, TIMER, COUNTER, FBD_TIMER, or FBD_COUNTER values under one name and reference elements with Tag[index].