yet END_IF :

ADR(inst1); END_IF [...] THEN <instructions> END_IF

more clearly with an IF

_1(IN:=FALSE); END_IF END_IF //If [...] _EnvironmentDoorOpen); //If the compressor [...] _2(IN:=FALSE); END_IF Tip

"DIV by ZERO") IF [...] _BY_ZERO Exception END_IF // input

DriveA.bitEnableOperation := TRUE; END_IF

reference. Optional (if

, IF and END_IF ).

DriveA.bitEnableOperation := TRUE; END_IF

of grouping if, for example