Delta Electronics Programmable Logic Controller DVP-PLC User Manual
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Chapter 4 Step Ladder Instructions
4.1 Step Ladder Instructions [STL], [RET] ............................................................... 4-1
4.2 Sequential Function Chart (SFC) ...................................................................... 4-2
4.3 How does a Step Ladder Instruction Work? ....................................................... 4-3
4.4 Things to Note for Designing a Step Ladder Program ......................................... 4-7
4.5 Types of Sequences ......................................................................................... 4-9
4.6 IST Instruction ................................................................................................. 4-17
Chapter 5 Categories & Use of Application Instructions
5.1 List of Instructions ........................................................................................... 5-1
5.2 Composition of Application Instruction .............................................................. 5-6
5.3 Handling of Numeric Values.............................................................................. 5-11
5.4 E, F Index Register Modification ....................................................................... 5-14
5.5 Instruction Index .............................................................................................. 5-16
Chapter 6 Application Instructions API 00-49
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（ API00～ 09） Loop Control .......................................................................... 6-1
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（ API10～ 19） Transmission Comparison ....................................................... 6-18
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（ API20～ 29） Four Arithmetic Operation ....................................................... 6-32
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（ API30～ 39） Rotation & Displacement......................................................... 6-46
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（ API40～ 49） Data Processing ..................................................................... 6-57
Chapter 7 Application Instructions API 50-99
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（ API50～ 59） High Speed Processing ........................................................... 7-1
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（ API60～ 69） Handy Instructions.................................................................. 7-39
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（ API70～ 79） Display of External Settings .................................................... 7-59
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（ API80～ 88） Serial I/O ............................................................................... 7-80
Chapter 8 Application Instructions API 100-149
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（ API100～ 109） Communication ................................................................... 8-1
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（ API110～ 119） Floating Point Operation ...................................................... 8-23
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（ API120～ 129） Floating Point Operation ..................................................... 8-31
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（ API130～ 139） Floating Point Operatio ....................................................... 8-43
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（ API140～ 149） Others ................................................................................ 8-55
Chapter 9 Application Instructions API 150-199
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（ API150～ 154） Others ................................................................................ 9-1
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（ API155～ 159） Position Control .................................................................. 9-14