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SIMATIC S7-GRAPH
Siemens SIMATIC S7-GRAPH User Manual
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Program
ming t
he Struct
ure of t
he Sequencer
S7
-GRA
PH for S7
300/40
0 Prog
ramm
ing Sequ
ent
ia
l Con
trol
System
s
6-12
C7
9000
-G
7076
-C526
-01
75
77
Table of Contents
Table of Contents
7
Product Overview
11
Installation and Authorization
15
Authorization
15
Installing the Authorization
16
Upgrading the Authorization
17
Uninstalling the Authorization
18
Rules for Handling Authorizations
18
Installing S7-Graph
20
Uninstalling S7-Graph
23
Designing a Sequential Control System Based on the Example of a Drill
25
Technological Task and Functional Diagram
27
Selecting the Structure of the Sequencer
28
Defining the System Signals
30
Creating the Drill Project in the SIMATIC Manager
31
Creating a Symbol Table
32
Creating an S7-Graph FB and Programming a Sequencer
33
Programming Step Actions
36
Programming Transitions
36
Programming Monitoring Functions
38
Specifying the Standard Function Block
39
Saving and Closing the Sequencer
39
Including the Sequencer in the STEP 7 Program
40
Downloading the Program to the CPU and Testing the Sequencer
42
Test Function: Control Sequencer
43
Changing the Sequencer
44
Working with S7-Graph
47
Starting S7-Graph
47
The S7-Graph User Interface
48
Settings for the Work Area
51
Customizing Display Level, Colors and Fonts
54
Tools for Editing the Sequencer
58
Display and Position of the Toolbars
58
Editing the Sequencer with the Toolbars
59
Navigating in the Sequencer
59
Creating a Project
61
Creating the Project in the SIMATIC Manager
61
S7-Graph FB or S7-Graph Source File
62
S7-Graph FB
62
S7-Graph Source File
63
Opening an S7-Graph FB or an S7-Graph Source File
64
Programming the Structure of the Sequencer
65
Sequencer - Principle
66
Structures of a Sequencer
67
Rules for the Structure of a Sequencer
68
Elements of a Sequencer
68
Step-Transition Pair and Initial Step
69
Jump
70
Alternative Branch
71
Simultaneous Branch
72
Branch Stop
73
New Sequencer
73
Permanent Instructions
74
Block Comment
75
Programming Actions and Conditions
77
Actions
78
Standard Actions
79
Event-Dependent Actions
80
Counters, Timers and Arithmetic in Actions
83
Conditions
90
Ladder Logic Elements for Programming Conditions
93
Logic Operations with Ladder Logic Elements
96
FBD Elements for Programming Conditions
97
S7-Graph Addresses in Conditions
100
Supervision Errors and Acknowledgment
101
Comment, Extended Name, Number, Name
103
Programming with Symbolic Addresses
104
Editing Variables
105
Saving and Compiling
107
Rules for Saving an S7-Graph FB
108
Rules for Saving an S7-Graph Source File
108
Settings for Saving and Compiling
109
Settings in the "General" Tab Page
109
Settings in the "Compile/Save" Tab Page
111
Settings in the "Messages" Tab Page
113
Saving
115
Compiling
116
Assigning Parameters to and Calling the S7-Graph FB
117
Calling the S7-Graph FB in the S7 Program
117
Calling the S7-Graph FB
117
Selecting an FB Parameter Set
118
Parameter Sets of the FB
119
Input Parameters of the S7-Graph FB
121
Output Parameters of the S7-Graph FB
124
The Modes of the Sequential Control System
126
Automatic Mode (SW_AUTO)
126
Manual Mode (SW_MAN)
126
Inching Mode (SW_TAP)
129
Automatic or Switch to Next Mode (SW_TOP)
130
Downloading the S7-Graph FB and Instance DB
131
Downloading Blocks from the Programming Device to the CPU
131
Uploading Blocks from the CPU to the Programming Device
132
Monitoring and Testing the Sequential Control System
133
Monitoring and Test Functions in S7-Graph
134
Monitoring the Status Information
134
Control Sequencer
135
Synchronization
136
Test Functions of STEP 7
137
Printing the Sequencer
141
Overview of All Actions
143
Standard Actions with and Without Interlock
143
Event-Dependent Actions - with and Without Interlock
145
Counters in Actions
155
Timers in Actions
160
Arithmetic in Actions
165
Notes on Configuration
167
General Level Structure and Program Structure
167
Points to Note about Programming Sequencers
174
Linking to Operator Control and Monitoring Systems
178
Instance DB
181
Settings for the Instance DB
181
Assignment of Instance DB and S7-Graph FB
182
Automatic Creation of the Instance DB on Saving
182
Creating the Instance DB Later
183
Displaying and Printing the Content of the Instance DB
183
Accessing the Instance DB
183
Structure of an Instance DB
184
Outline of the Structure of the Instance DB
184
FB Parameters
184
The Transition Structure
189
The Step Structure
191
Sequencer Status
193
Internal Data Area
199
Glossary
203
Index
207
5
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Siemens SIMATIC S7-GRAPH Specifications
General
Brand
Siemens
Model
SIMATIC S7-GRAPH
Category
Industrial Equipment
Language
English
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