LIMIT

Function - Bounds an integer between low and high limits.

Inputs

IMIN : DINT Low bound
IN : DINT   Input value
IMAX : DINT High bound

Outputs

Q : DINT    IMIN if IN < IMIN; IMAX if IN > IMAX; IN otherwise

Function diagram

LimitDiagram.gif (2159 octets)

Remarks

In LD language, the input rung (EN) enables the operation, and the output rung keeps the state of the input rung. In IL language, the first input must be loaded before the function call. Other inputs are operands of the function, separated by a coma.

ST Language

Q := LIMIT (IMIN, IN, IMAX);

FBD Language

LimitFbd.gif (1396 octets)

LD Language

(* The comparison is executed only if EN is TRUE *)
(* ENO has the same value as EN *)
LimitLd.gif (1646 octets)

IL Language:

Op1: LD    IMIN
     LIMIT IN, IMAX
     ST    Q

See also

MIN   MAX   MOD   ODD