Contents
S7-GRAPH for S7 300/400 Programming Sequential Control Systems
viii C79000-G7076-C526-01
5 Creating a Project.................................................................................................5-1
5.1 Creating the Project in the SIMATIC Manager.........................................................5-1
5.2 S7-Graph FB or S7-Graph Source File?..................................................................5-2
5.3 S7-Graph FB..........................................................................................................5-2
5.4 S7-Graph Source File.............................................................................................5-3
5.5 Opening an S7-Graph FB or an S7-Graph Source File............................................5-4
6 Programming the Structure of the Sequencer.....................................................6-1
6.1 Sequencer - Principle..............................................................................................6-2
6.2 Structures of a Sequencer.......................................................................................6-3
6.3 Rules for the Structure of a Sequencer....................................................................6-4
6.4 Elements of a Sequencer........................................................................................6-4
6.5 Step-Transition Pair and Initial Step........................................................................6-5
6.6 Jump......................................................................................................................6-6
6.7 Alternative Branch..................................................................................................6-7
6.8 Simultaneous Branch..............................................................................................6-8
6.9 Branch Stop............................................................................................................6-9
6.10 New Sequencer......................................................................................................6-9
6.11 Permanent Instructions.........................................................................................6-10
6.12 Block Comment....................................................................................................6-11
7 Programming Actions and Conditions................................................................7-1
7.1 Actions...................................................................................................................7-2
7.2 Standard Actions....................................................................................................7-3
7.3 Event-Dependent Actions.......................................................................................7-4
7.4 Counters, Timers and Arithmetic in Actions.............................................................7-7
7.5 Conditions.............................................................................................................7-14
7.6 Ladder Logic Elements for Programming Conditions.............................................7-17
7.7 Logic Operations with Ladder Logic Elements.......................................................7-20
7.8 FBD Elements for Programming Conditions..........................................................7-21
7.9 S7-Graph Addresses in Conditions.......................................................................7-24
7.10 Supervision Errors and Acknowledgment..............................................................7-25
7.11 Comment, Extended Name, Number, Name.........................................................7-27
7.12 Programming with Symbolic Addresses................................................................7-28
7.13 Editing Variables...................................................................................................7-29
8 Saving and Compiling..........................................................................................8-1
8.1 Saving and Compiling.............................................................................................8-1
8.2 Rules for Saving an S7-Graph FB...........................................................................8-2
8.3 Rules for Saving an S7-Graph Source File..............................................................8-2
8.4 Settings for Saving and Compiling...........................................................................8-3
8.4.1 Settings in the “General" Tab Page.........................................................................8-3
8.4.2 Settings in the "Compile/Save" Tab Page................................................................8-5
8.4.3 Settings in the "Messages" Tab Page......................................................................8-7
8.5 Saving....................................................................................................................8-9
8.6 Compiling..............................................................................................................8-10
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