max

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Function A 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. - Get the maximum of two integers.

Inputs

Input	Data Type	Range	Unit	Default	Description
IN1	ANY				First input.
IN2	ANY				Second input.

Outputs

Output	Data Type	Range	Unit	Description
Q	ANY			IN1 if IN1 > IN2; IN2 otherwise.

Remarks

None

FBD Language

FFLD Language

In the FFLD language, the input rung (EN) enables the operation.
- The output rung keeps the state of the input rung.
- The comparison is executed only if EN is TRUE.
- ENO has the same value as EN.

IL Language

In the 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.

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  IN1
     MAX IN2
     ST  Q    (* Q is the maximum of IN1 and IN2 *)

ST Language

Q := MAX (IN1, IN2);