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MOD / MODR / MODLRPLCopen motion icon

FunctionA function calculates a result according to the current value of its inputs. A function has no internal data and is not linked to declared instances. - Calculation of modulo.

Inputs Function Description
  MOD MODR MODLR  
IN DINT REAL LREAL Input value
BASE DINT REAL LREAL Base of the modulo
Output Function Description
  MOD MODR MODLR  
Q DINT REAL LREAL Modulo: rest of the integer division (IN / BASE)

Remarks

In FFLD language, the input rung (EN) enables the operation, and the output rung keeps the state of the input rung. In IL"Instruction list" This is a low-level language and resembles assembly language, the first input must be loaded before the function call. The second input is the operand of the function.

ST Language

Q := MOD (IN, BASE);

FBD Language

ModFbd.gif (1274 octets)

FFLD Language

(* The comparison is executed only if EN is TRUE *)
(* ENO has the same value as EN *)
ModLd.gif (1523 octets)

IL Language

Op1: LD"Ladder diagram" Ladder logic is a method of drawing electrical logic schematics. It is now a very popular graphical language for programming Programmable Logic Controllers (PLCs). It was originally invented to describe logic made from relays. The name is based on the observation that programs in this language resemble ladders, with two vertical "rails" and a series of horizontal "rungs" between them  IN
     MOD BASE
     ST  Q    (* Q is the rest of integer division: IN / BASE *)

See also

MIN   MAX   LIMIT   ODD

 

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