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Siemens SIMATIC S5-95F User Manual

Siemens SIMATIC S5-95F
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7 Introduction to STEP 5
7.1 Writing a Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1
7.1.1 Methods of Representation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1
7.1.2 Operand Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 3
7.1.3 Circuit Diagram Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 3
7.2 Programm Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 4
7.2.1 Linear Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 4
7.2.2 Structured Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 5
7.3 Block Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 7
7.3.1 Organization Blocks (OBs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 9
7.3.2 Program Blocks (PBs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 11
7.3.3 Sequence Blocks (SBs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 11
7.3.4 Function Blocks (FBs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 11
7.3.5 Data Blocks (DBs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 16
7.4 Program Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 18
7.4.1 START-UP Program Processing . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 19
7.4.2 Cyclical Program Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 21
7.4.3 Maximum Response Time with Cyclical Program Processing . . . . . 7 - 23
7.4.4 Time-Controlled Program Processing . . . . . . . . . . . . . . . . . . . . . . 7 - 25
7.4.5 Maximum Response Time with Time-Controlled Program
Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 28
7.4.6 Interrupt-Driven Program Processing . . . . . . . . . . . . . . . . . . . . . . 7 - 29
7.5 Processing Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 30
7.5.1 Changing Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 30
7.5.2 Changing Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 30
7.5.3 Compressing the Program Memory . . . . . . . . . . . . . . . . . . . . . . . 7 - 30
7.6 Number Representation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 31
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EWA 4NEB 812 6210-02

Table of Contents

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Siemens SIMATIC S5-95F Specifications

General IconGeneral
BrandSiemens
ModelSIMATIC S5-95F
CategoryController
LanguageEnglish

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