HIWORD

Function - Get the most significant word of a double word

Inputs

IN : UDINT 32 bit register

Outputs

Q : UINT   Most significant word

Remarks

In LD language, the operation is executed only if the input rung (EN) is TRUE. The output rung (ENO) keeps the same value as the input rung. In IL, the input must be loaded in the current result before calling the function.

ST Language

Q := HIWORD (IN);

FBD Language

LD Language

(* The function is executed only if EN is TRUE *)
(* ENO keeps the same value as EN *)

IL Language:

Op1: LD  IN
     HIWORD
     ST  Q

See also

LOBYTE  HIBYTE  LOWORD  MAKEWORD  MAKEDWORD