ST Logic Blocks

The Code Advisor

You don't hand-type paths or function names. The ST Code Advisor is a searchable catalogue of everything you can insert — your variables, equipment signals and the built-in functions — dropped into your code exactly right.

Opening it

Click Advisor on any block. Search or browse the tree, select a node, and click Insert. It's a non-modal helper, so you can keep it open beside the editor.

The ST Code Advisor dialog showing categories: Parameters, Equipment, Timers, Functions, Statements, Literals — The Advisor's categories — every path and snippet you can insert.

The ST Code Advisor with the Statements category expanded, listing IF, FOR and assignment snippets — Statements expand into ready-to-fill snippets.

Top-level categories are Parameters, Globals, Equipment, Timers, Conditions, Functions, Statements and Literals. The variable categories insert the correct path (e.g. Motor.IMotor.Coil); the rest insert ready-to-fill snippets.

The built-in functions

These are the operations the Advisor inserts for you — the ones you map onto your own signals:

Family	Functions
Edge detection	`R_TRIG(x)` (rising) `F_TRIG(x)` (falling)
Value change	`RISE(x)` `FALL(x)` `CHANGE(x)` `RECORD_CHANGE(rec)`
Type conversion	`INT_TO_REAL(x)` `REAL_TO_INT(x)` `INT_TO_FLOAT(x)` `FLOAT_TO_INT(x)`
Timer control	`START_TIMER('T');` `STOP_TIMER('T');` `RESET_TIMER('T');` `RESTART_TIMER('T');` `SET_TIMER_PT('T', ms);` `TON/TOF/TP(…)`
Timer query	`TON_Q('T')` / `TOF_Q` / `TP_Q` / `TIMER_Q` (done) `TON_ET('T')` / … / `TIMER_ET` (elapsed ms)
Maps	`MAP_GET(m, k)` `MAP_SET(m, k, v)` `MAP_ADD(…)` `MAP_REMOVE(…)`
Conditions	`COND('Name')` → the named condition's current Bool
Time literals	`T#500ms` `T#2s` `T#5m` `T#1h`

Timers are mapped in the composite. A timer name like 'Dwell' is a placeholder inside the block; it resolves only once the block is instantiated in a composite that defines that timer — see Composite Instances.