Mitsubishi Electronics FXCPU

Table of Contents

FXCPU Structured Programming Manual

(Application Functions)

Table of Contents

Positioning of This Manual.......................................................................................................7

Related Manuals......................................................................................................................10

Generic Names and Abbreviations Used in Manuals.......................................................... 13

1. Outline 14

1.1 Outline of Structured Programs and Programming Languages.................................................... 14

1.1.1 Outline of structured programs......................................................................................................14

1.1.2 Programming languages...............................................................................................................15

1.2 PLC Series and Programming Software Version.......................................................................... 15

1.3 Cautions on Creation of Fundamental Programs..........................................................................16

1.3.1 I/O processing and response delay...............................................................................................16

1.3.2 Double output (double coil) operation and countermeasures........................................................17

1.3.3 Circuits not available in structured ladder programs and countermeasures..................................18

1.3.4 Handling of general flags...............................................................................................................18

1.3.5 Handling of operation error flag.....................................................................................................21

2. Function List 22

2.1 Type Conversion Functions.......................................................................................................... 22

2.2 Standard Functions Of One Numeric Variable..............................................................................24

2.3 Standard Arithmetic Functions......................................................................................................24

2.4 Standard Bit Shift Functions..........................................................................................................25

2.5 Standard Bitwise Boolean Functions............................................................................................ 25

2.6 Standard Selection Functions....................................................................................................... 25

2.7 Standard Comparison Functions...................................................................................................26

2.8 Standard Character String Functions............................................................................................26

2.9 Functions Of Time Data Types..................................................................................................... 26

2.10 Standard Function Blocks........................................................................................................... 27

3. Function Construction 28

3.1 Applied Function Expression and Execution Type........................................................................28

3.2 Labels............................................................................................................................................29

3.3 Device and Address......................................................................................................................32

3.4 EN and ENO................................................................................................................................. 33

4. How to Read Explanation of Functions 34