CODESYS MAX

MAX is an IEC operator that returns the greatest value among its inputs. It is written as OUT := MAX(IN0, IN1, IN2, ...). The CODESYS example MAX(30,90,40) returns 90, and nested MAX calls are also shown.

Source checked3/3 values · 2026-10-26

Specification

2 sources

Language	structured text
Code	MAX
Group	maximum function
Syntax	OUT := MAX(IN0,IN1,IN2,...)
Dialect	CODESYS

Study notes

The operator implements the maximum function.
Permitted data types: all.
Example: Var1 := MAX(30,90,40); returns 90.
Nested example: Var1 := MAX(40,MAX(90,30));
The syntax allows multiple inputs: IN0, IN1, IN2, ...