Lenze PLC Designer PLC Designer (R3-1) Uživatelský manuál stáhnout pdf (Strana 74)

L-force | PLC Designer

Concepts and Base Components

72 DMS 4.1 EN 03/2011 TD29 

Declaration:

Syntax:

FUNCTION_BLOCK <function block name> | EXTENDS <function block name> |

IMPLEMENTS <comma-separated list of interface names>

This is followed by the declaration of the variables.

Note: In contrast to »PLC Designer« V2.3 "FUNCTIONBLOCK" is no longer a valid

alternative key word.

Example:

FBexample shown in the following picture has two input variables and two output

variables out1 and out2. Out1 is the sum of the two inputs, out2 is the result of a

comparison for equality.

Abb. 7 Example of a function block in ST

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Lenze PLC Designer PLC Designer (R3-1) Uživatelský manuál Strana 74