6-7
Primer: S7-300 Programmable Controller, Quick Start
C79000-G7076-C500-01
You must have created FC1 and OB1 as blocks and assigned the incremental
STL editor as the language editor.
You will find the rules for
entering STL statements in
the STEP 7 online help.
The table below shows you step-by-step how to enter STL statements:
Step Procedure Result
1.
Start the assigned STL editor by double-clicking
on FC1 in the SIMATIC Manager.
FC1 is opened and appears in a split window
with:
S The variable declaration table and
S The code section of the block.
2.
Select the menu command Insert → Network
to create a new network or click on the relevant
icon in the toolbar.
The first network is displayed in the code section
of the open FC1.
3.
Select the area below the network comment and
enter the STL statements listed below line for
line via the keyboard.
After each line is entered, it is checked for syntax
errors. Lines containing errors are displayed in red.
These must be corrected before the block is saved.
4.
Create a total of 11 networks as described above
and enter the statements listed below in the relevant
networks.
If no syntax errors are displayed (red background),
programming of FC1 is complete and you can now
save it.
5.
Save the complete and correctly created FC1
with the menu command File → Save
The block is saved on your programming
device/PC.
6.
Then program OB1 in the same way. OB1 is programmed and saved on your
programming device/PC.
Prerequisite
How Do You
Proceed?
Programming Logic Blocks with STEP 7
How Do You Program Blocks in STL?
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