Siemens programming the cpu 314c-2dp User Manual

 

 

 

 

 

 

 

   

 

 

 

 

T I A  Training Document

 

Page 23 of 25 

  Module 

 

 

17.  

'LAD/STL/FDB Program S7 Blocks’ is an editor which allows you to create your STEP 

7 program as you require. To this end, the OB1 organization block with the first network has 
already been opened. In order to create your first logic operations, you must mark the first 
network. Now you can write your first STEP 7 program. Individual programs are usually divided 

into networks in STEP 7. You open a new network by clicking on the network symbol, 

. 

 
 

 

Note: Comments regarding program documentation are separated from the program commands by 
the characters "//". 
 

 

 
The network   

 

L 

MB 100 

 

  

  T 

AB 

0 

 
loads the clock memory byte activated in the hardware configuration and transfers it to an output 
byte. As a consequence, the 8 bits of the output byte flash in the different frequencies of the clock 
memory bits.    
 
 

Note: The address of the output byte can be different from case to case, depending on the hardware 
configuration.   
 

 

Foreword                     Notes                      Hardware configuration                      STEP 7 program                     Testing 

A5 

Issue date: 02/2008                                                                                                                          Programming the CPU 314C-2DP