Siemens SIMATIC S7-1200

Getting started
3.3 Create a simple network in your user program
Easy Book
Manual, 03/2014, A5E02486774-AF
41
With the tags entered into the PLC tag table, the tags are available to your user program.
3.3
Create a simple network in your user program
Your program code consists of instructions that the CPU executes in sequence. For this
example, use ladder logic (LAD) to create the program code. The LAD program is a
sequence of networks that resemble the rungs of a ladder.
To open the program editor, follow these steps:
1.
Expand the "Program blocks" folder in the Project tree to
display the "Main [OB1]" block.
2.
Double-click the "Main [OB1]" block.
The program edi
tor opens the program block (OB1).
Use the buttons on the "Favorites" to insert contacts and coils onto the network.