User's Manual

Automation and Drives - SCE

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

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