A - 5 A - 5
INTRODUCTION
Thank you for choosing the Mitsubishi MELSOFT series Integrated FA software.
Read this manual and make sure you understand the functions and performance of MELSEC series
sequencer thoroughly in advance to ensure correct use.
CONTENTS
SAFETY PRECAUTIONS .............................................................................................................................. A- 1
CONDITIONS OF USE FOR THE PRODUCT ............................................................................................. A- 2
REVISIONS .................................................................................................................................................... A- 3
INTRODUCTION ............................................................................................................................................ A- 5
CONTENTS .................................................................................................................................................... A- 5
About Manuals ............................................................................................................................................... A-13
How to Use This Manual ................................................................................................................................ A-14
Abbreviations and Generic Terms in This Manual ........................................................................................ A-15
1. OVERVIEW
1- 1 to 1- 4
1.1 What Is the ST Language? ...................................................................................................................... 1- 1
1.2 Features of ST Program in MELSEC-Q/L Series ................................................................................... 1- 3
1.3 ST Program Creating Procedure ............................................................................................................. 1- 4
2. SYSTEM CONFIGURATION
2- 1 to 2- 3
2.1 System Configuration ............................................................................................................................... 2- 1
2.1.1 Applicable CPUs ............................................................................................................................... 2- 1
2.1.2 Programming tool for ST program .................................................................................................... 2- 1
2.1.3 ST program specifications ................................................................................................................ 2- 1
3. HANDLING OF CHARACTERS AND NUMERIC VALUES IN ST PROGRAMS
3- 1 to 3-16
3.1 Usable Characters ................................................................................................................................... 3- 1
3.2 Data Handling ........................................................................................................................................... 3- 3
3.2.1 Data types ......................................................................................................................................... 3- 3
3.2.2 About ANY type ................................................................................................................................. 3- 4
3.2.3 Array and structure ............................................................................................................................ 3- 5
3.3 Data Representation Methods ................................................................................................................. 3- 8
3.3.1 Constants .......................................................................................................................................... 3- 8
3.3.2 Labels ................................................................................................................................................ 3-11
3.3.3 Devices .............................................................................................................................................. 3-14
4. ST PROGRAM EXPRESSIONS
4- 1 to 4-33
4.1 Assignment Statement ............................................................................................................................. 4- 1
4.2 Operators .................................................................................................................................................. 4- 2
4.2.1 Operator list ....................................................................................................................................... 4- 2
4.2.2 Examples of using the operators ...................................................................................................... 4- 4
Содержание MELSEC L series
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