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 ......................................... 4-9 4.5 Types of Sequences ......................................................................................... 4-11 4.6 IST Instruction .................................................................................................
4-19 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 ..............................................................................................
5-15 Chapter 6 Application Instructions API 00-49 ● （ API00 ~ 09 ） Loop Control .......................................................................... 6-1 ● （ API10 ~ 19 ） Transmission Comparison ...................................................... 6-20 ● （ API20 ~ 29 ） Four Arithmetic Operation ...................................................... 6-35 ● （ API30 ~ 39 ） Rotation & Displacement ........................................................ 6-50 ● （ API40 ~ 49 ） Data Processing ....................................................................
6-61 Chapter 7 Application Instructions API 50-88 ● （ API50 ~ 59 ） High Speed Processing .......................................................... 7-1 ● （ API60 ~ 69 ） Handy Instructions ................................................................. 7-43 ● （ API70 ~ 79 ） Display of External Settings ................................................... 7-74 ● （ API80 ~ 88 ） Serial I/O ............................................................................... 7-97 Chapter 8 Application Instructions API 100-149 ● （ API100 ~ 109 ） Communication ..................................................................
8-1 ● （ API110 ~ 119 ） Floating Point Operation ..................................................... 8-21 ● （ API120 ~ 129 ） Floating Point Operation ..................................................... 8-35 ● （ API130 ~ 139 ） Floating Point Operation ..................................................... 8-47 ● （ API143 ~ 149 ） Others ............................................................................... 8-59 Chapter 9 Application Instructions API 150-199 ● （ API150 ~ 154 ） Others ............................................................................... 9-1 ● （ API155 ~ 159 ） Position Control ................................................................. 9-38 ii