Chapter 6 Symbol Variables Table of Contents 6.1 Introduction of Symbols .................................................................... 6-2 6.1.1 Application of Symbols and Creation of Identifiers .............................. 6-2 6.1.2 Symbol Variable Classification ......................................................... 6-3 6.1.3 Data Types ................................................................................... 6-6 6.1.4 Symbol Variable Address Allocation and Initial Value ........................ 6-14 6.1.5 Indirect Assignment and Modification for Register Symbol Variable ..... 6-17 6.1.6 Bit Operation of Symbol Variable (Only AH/AS Series ) .....................
6-19 6.2 Symbol Variable Management in ISPSoft ......................................... 6-21 6.2.1 Symbol Variable Table ................................................................. 6-21 6.2.2 Adding Symbol Variable ............................................................... 6-23 6.2.3 Principles of ARRAY or STRING Symbol ........................................... 6-28 6.2.4 Modify Symbol Variables and Edit Symbol Table ............................... 6-32 6.2.5 Remove Symbol Variable Allocated Address ..................................... 6-33 6.2.6 Downloading the Initial Values of the Symbols .................................
6-34 6.2.7 Export Symbol Table ................................................................... 6-36 6.2.8 Importing a Symbol Table ............................................................ 6-37 6.2.9 Arranging the symbols ................................................................. 6-40 6.2.10 Filtering the Symbols .................................................................. 6-41 6.2.11 Device Resource Allocation Setting ............................................... 6-42 6.3 Example ........................................................................................... 6-43 6.3.1 Planning a Symbol Table ..............................................................
6-43 6.3.2 Writing a Program ....................................................................... 6-45