Short summary

Name	`MOD`
→POU type	→function
Category	IEC-block, Numeric, block with internal error diagnostic
Conform to →IEC-standard	no restrictions
Graphical interface
Available since	version 1.0.0 (for logi.CAD 3)

Functionality

The mathematical function modulo is called: The block returns the result for IN1 modulo IN2 (the remainder of the division IN1 / IN2).

Enter the value for the dividend at input IN1 and the value for the divisor at input IN2.

Inputs, return value

	Identifier	→Data type	Description
Inputs:	`IN1`	`USINT`, `UINT`, `UDINT`, `ULINT`, `SINT`, `INT`, `DINT` or `LINT`(corresponds to →generic data type `ANY_INT`)	1st value (dividend)
Inputs:	`IN2`	`USINT`, `UINT`, `UDINT`, `ULINT`, `SINT`, `INT`, `DINT` or `LINT`(corresponds to →generic data type `ANY_INT`)	2nd value (divisor)
Return value:	–	`USINT`, `UINT`, `UDINT`, `ULINT`, `SINT`, `INT`, `DINT` or `LINT`(corresponds to →generic data type `ANY_INT`)

Input EN and output ENO are available when →calling the block. See "Execution control: EN, ENO" for information on input EN and output ENO.

Internal error diagnostic for block

The block checks for a division by 0 before it is executed.
In this error case, the output ENO of the block is set to value FALSE (or an equivalent) and according to →IEC-standard the result will be set to 0.

Example for usage within ST-editor

PROGRAM Test
   VAR
      result : INT;
   END_VAR
   result := MOD(IN1 := 10, IN2 := 3);    (* The variable 'result' evaluates to '1'. *)
END_PROGRAM

When creating your application within the ST-editor, enter a call of a block by typing the text as requested by the syntax or use Content Assist.