Operation
Creating a PLC sample program
Create sym file
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LDCDS−EL100 EN 8.0
12. Enter the following code in the lower half of the divided "PLC_PRG (PRG−ST)"
programming window: Count:=Count+1
Our PLC program is now complete and can be saved.
13. Go to the menu bar, open the menu
File
and select the menu item
Save as
.
14. Enter an optional program name (e.g. "example project") in the "Save as" dialogue,
select a memory location and click
Save
.
After this, we will transfer the program to the HMI. Before doing so, a sym file must be
created.
8.3.4
Create sym file
A sym file is required if the visualisation, e.g. VisiWinNet
â
Smart is to access the PLC
program. A sym file contains all variables and declarations of the PLC program.
How to proceed:
1. Open the menu
Project
in the PLC Designer and select the menu item
Options
.
The "Options" dialogue will be opened.
2. Select the "Symbol configuration" category from the "Options" dialogue.
