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Siemens Simatic S7-300 Service Manual Page 264
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Programming Examples
Statement List (STL) for S7-300 and S7-400 P
rogramming
B-14
A5E00706960-01
1
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A5E00706960-01
1
Safety Guidelines
2
Qualified Personnel
2
Prescribed Usage
2
Trademarks
2
Disclaimer of Liability
2
Preface
3
Requirements
4
Online Help
5
Further Support
5
Training Centers
5
Technical Support
6
Contents
12
1 Bit Logic Instructions
13
1.2 A And
15
1.3 AN And Not
16
1.4 O Or
17
1.5 ON Or Not
18
1.6 X Exclusive Or
19
1.7 XN Exclusive Or Not
20
1.8 O And before Or
21
Bit Logic Instructions
23
Bit Logic Instructions
24
1.15 ) Nesting Closed
26
1.16 = Assign
28
1.17 R Reset
29
1.18 S Set
30
1.19 NOT Negate RLO
31
1.20 SET Set RLO (=1)
32
1.21 CLR Clear RLO (=0)
33
1.23 FN Edge Negative
35
1.24 FP Edge Positive
37
2 Comparison Instructions
39
RLO values
40
3 Conversion Instructions
43
3.15 RND Round
57
3.16 TRUNC Truncate
58
4 Counter Instructions
61
LC Z3
64
4.5 R Reset Counter
65
4.7 CU Counter Up
67
4.8 CD Counter Down
68
5 Data Block Instructions
69
Data Block Instructions
72
Data Block Instructions
73
6 Logic Control Instructions
75
6.3 JL Jump to Labels
78
6.4 JC Jump if RLO = 1
79
6.5 JCN Jump if RLO = 0
80
<jump
82
6.8 JBI Jump if BR = 1
83
6.9 JNBI Jump if BR = 0
84
6.10 JO Jump if OV = 1
85
6.11 JOS Jump if OS = 1
86
6.12 JZ Jump if Zero
87
6.13 JN Jump if Not Zero
88
6.14 JP Jump if Plus
89
6.15 JM Jump if Minus
90
6.19 LOOP Loop
94
7 Integer Math Instructions
95
Instructions
96
Format
100
Description
100
Status word
100
Example
100
Example: 13 divided by 4
101
Example 1
102
Example 2
102
Example 3
103
(32-Bit)
105
IEEE-FP)
113
(32-Bit IEEE-FP)
115
Description of instruction
120
Result
120
Number (32-Bit)
122
Numbers (32-Bit)
126
9.2 L Load
132
Contents of ACCU 1
133
Integer (32-Bit Pointer)
136
Register 2
137
9.9 T Transfer
139
(32-Bit Pointer)
142
10.2 BE Block End
146
10.5 CALL Block Call
149
10.6 Call FB
151
Program Control Instructions
152
10.7 Call FC
153
10.8 Call SFB
155
10.9 Call SFC
157
10.10 Call Multiple Instance
158
10.17 )MCR End MCR
166
11.1 Shift Instructions
169
Formate
170
Examples
170
11.2 Rotate Instructions
182
12 Timer Instructions
189
Area in Memory
190
Time Value
190
Time Base
191
Bit Configuration in ACCU 1
191
Choosing the right Timer
192
Timer Instructions
194
12.6 R Reset Timer
199
12.7 SP Pulse Timer
200
Timer Instructions
201
12.9 SD On-Delay Timer
204
12.11 SF Off-Delay Timer
208
13 Word Logic Instructions
211
13.3 OW OR Word (16-Bit)
214
Word Logic Instructions
224
14 Accumulator Instructions
225
Accumulator Instructions
236
Mnemonics (SIMATIC)
239
Mnemonics (International)
245
B Programming Examples
251
PEB1PEB2
254
Statement List
256
Clock Pulse Generator
257
Signal Check
257
Programming Examples
261
Solving a Math Problem
262
Heating an Oven
263
Programming Examples
264
Parameter Transfer
266
Index-6
272
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