$IF without frequency

The instruction block is executed exactly when the condition is true.

Programing Example

$IF with multiple branches

; Define realtime cycle

#RT CYCLE [SCOPE = PROG]

  ; Query value of external variable

  $IF V.E.VALUE > 0

    ; Increment positive counter

    V.E.COUNT_POS += 1

  $ELSEIF V.E.VALUE < 0

    ; Increment negative counter

    V.E.COUNT_NEG += 1

  $ELSE

    ; Increment zero counter

    V.E.COUNT_NULL += 1

  $ENDIF

#RT CYCLE END