# Selection Functions

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## Introduction

The IEC 61131-3 Selection Functions choose one value from a set of values. These selection functions are supported:

Function | Explanation
--- | ---
MOVE | Assign one value to another.
SEL | Returns one of two values depending on a BOOL value.
MAX | Returns the highest value input.

## Standards Compliance

IEC 61131-3 Second Edition: Table 27.

IEC 61131-3 Third Edition: Table 32.

## Further Information

Common Elements

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Glossary

For the meaning of terms used in Fernhill SCADA .