Specifications

5 The Most Important Recommendations
Programming Guideline for S7-1200/1500
V1.2, Entry ID: 81318674
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Siemens AG 2014 All rights reserved
5 The Most Important Recommendations
 Use optimized blocks
– Chapter 2.6 Optimized blocks
 Structuring the program clearly and well
– Chapter 3.2 Organization blocks (OB)
 Inserting instructions as multi-instance (TON, TOF ..)
– Chapter 3.2.5 Multi-instances
 Reusable programming of blocks
– Chapter 3.2.8 Reusability of blocks
 Symbolic programming
– Chapter 3.6 Symbolic addressing
 When handling data, work with ARRAY
– Chapter 3.6.2 ARRAY data type and indirect field accesses
 Creating PLC data types
– Chapter 3.6.3 STRUCT data type and PLC data types
 Using libraries for storing program elements
– Chapter 3.7 Libraries
 No memory bits but global data blocks
– Chapter 4.2 No bit memory but global data blocks