Siemens S7-1200 Programming Manualline page 4

Table of contents
3.7
3.7.1
3.7.2
3.7.3
3.7.4
3.8
3.9
3.10
3.10.1
3.10.2
3.10.3
3.10.4
3.10.5
3.10.6
3.10.7
3.10.8
4 Hardware-Independent Programming ........................................................... 69
4.1
4.2
4.3
5 The Most Important Recommendations ........................................................ 72
6 Related Literature ............................................................................................ 73
7 History............................................................................................................... 74
Programming Guideline for S7-1200/1500
Entry-ID: 81318674, V1.2,
Libraries .............................................................................................. 54
Types of libraries and library elements .............................................. 54
Type concept ...................................................................................... 56
Differences for typifiable objects for controller and HMI .................... 56
Versioning of a block .......................................................................... 57
Process interrupts .............................................................................. 61
Other performance recommendations ............................................... 63
SCL programming language: Tips and tricks ..................................... 64
Using call templates ........................................................................... 64
What instruction parameters are mandatory? .................................... 65
Drag & drop with entire tag names ..................................................... 65
Efficiently inserting CASE instruction ................................................. 66
No manipulation of loop counters for FOR loop ................................. 66
FOR loop backwards .......................................................................... 67
Simple creating of instances for calls ................................................. 67
Handling of time tags .......................................................................... 67
Data types of S7-300/400 and S7-1200/1500 .................................... 69
No bit memory but global data blocks ................................................ 70
Programming of "clock bits" ............................................................... 71
03/2014
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