Mitsubishi Electric M800VW Series Programming Manual page 13

5 Languages Used in Sequence Programs ................................................................................................ 57
5.1 Ladder Diagram Language ..................................................................................................................................... 58
5.2 Structured Text ....................................................................................................................................................... 59
6 Explanation of Instructions and Functions ............................................................................................. 61
6.1 Instruction List......................................................................................................................................................... 63
6.1.1 How to Read Instruction Table....................................................................................................................... 63
6.1.2 Basic Instructions ........................................................................................................................................... 65
6.1.3 Comparison Operation Instructions................................................................................................................ 67
6.1.4 Arithmetic Operation Instructions ................................................................................................................... 71
6.1.5 Data Conversion Instructions ......................................................................................................................... 75
6.1.6 Data Transmission Instructions...................................................................................................................... 78
6.1.7 Program Branch Instructions.......................................................................................................................... 80
6.1.8 Logical Operation Instructions........................................................................................................................ 81
6.1.9 Rotation Instructions ...................................................................................................................................... 83
6.1.10 Bit Processing Instructions........................................................................................................................... 84
6.1.11 Data Processing Instructions ....................................................................................................................... 85
6.1.12 Character String Processing Instructions..................................................................................................... 86
6.1.13 Special Function Instructions ....................................................................................................................... 88
6.1.14 Other Function Instructions .......................................................................................................................... 91
6.1.15 Exclusive Instructions................................................................................................................................... 92
6.2 Function List ........................................................................................................................................................... 93
6.2.1 How to Read Function Table ......................................................................................................................... 93
6.2.2 Type Conversion Functions ........................................................................................................................... 94
6.2.3 Standard Functions of One Numeric Variable................................................................................................ 95
6.2.4 Standard Arithmetic Functions ....................................................................................................................... 95
6.2.5 Standard Bitwise Boolean Functions ............................................................................................................. 95
6.2.6 Standard Selection Functions ........................................................................................................................ 95
6.2.7 Standard Comparison Functions.................................................................................................................... 96
6.2.8 Standard Character String Functions............................................................................................................. 96
6.2.9 Functions of Time Data Types ....................................................................................................................... 96
6.2.10 Standard Bistable Function Blocks .............................................................................................................. 96
6.2.11 Standard Edge Detection Function Blocks................................................................................................... 96
6.2.12 Standard Counter Function Blocks .............................................................................................................. 96
6.2.13 Standard Timer Function Blocks .................................................................................................................. 97
6.3 Data Designation Method ....................................................................................................................................... 98
6.3.1 Bit Data .......................................................................................................................................................... 98
6.3.2 Word (16 Bits) Data........................................................................................................................................ 99
6.3.3 Double-Word (32 bits) Data ......................................................................................................................... 101
6.3.4 Single/Double-Precision Real Number Data ................................................................................................ 103
6.3.5 Character String Data .................................................................................................................................. 107
6.4 Index Modification................................................................................................................................................. 108
6.4.1 For Models with Extended Index Modification.............................................................................................. 108
6.5 Arithmetic Error..................................................................................................................................................... 111
6.6 Execution Condition of Instruction ........................................................................................................................ 112
6.7 Counting Step Number ......................................................................................................................................... 113
6.8 Operations When the OUT, SET/RST, or PLS/PLF Instruction of the Same Device is Used .............................. 115
6.9 PLS/PLF Instruction Behavior in the State from PLC STOP to RUN.................................................................... 118
6.10 How to Read Instruction Tables.......................................................................................................................... 120
7 Basic Instructions .................................................................................................................................... 121
7.1 Contact Instructions .............................................................................................................................................. 123
7.2 Connection Instructions ........................................................................................................................................ 126
7.3 Output Instructions................................................................................................................................................ 136
7.4 Shift Instructions ................................................................................................................................................... 150
7.5 Master Control Instructions................................................................................................................................... 152
7.6 Other Instructions ................................................................................................................................................. 155
8 Function Instructions .............................................................................................................................. 159
8.1 Comparison Operation Instructions ...................................................................................................................... 161
8.2 Arithmetic Operation Instructions.......................................................................................................................... 173
8.3 Data Conversion Instructions................................................................................................................................ 214
8.4 Data Transfer Instructions .................................................................................................................................... 232
8.5 Program Branch Instructions ................................................................................................................................ 251
8.6 Logical Operation Instructions .............................................................................................................................. 263