132 Programmable Logic Controllers: Hardware and Programming
6.11 Using Utility Instructions to Save and
Retrieve PLC Programs
In this section, you will learn how to change the subdirectory and
the drive location of where you save the PLC project. You will also
learn how to open or import existing PLC ladder logic diagrams. The
options for automatically saving project files and creating a backup
are discussed.
To save the PLC project from the
File
menu click,
Save As.
From
the
Look In
box, select the drive and subdirectory to which you want
to save the project file. Then, enter the name of the file in the
File Name
text box and click Save.
To open an existing PLC program, click the
Open File
icon located
on the toolbar. You can also click
Open
from the
File
menu. The
Open/
Import SLC 500 Program
dialog box will display, Figure 6-36. From
the
Look In
box, select the drive in which the program is residing.
Then, select the desired PLC project file and click Open.
Now, you will learn how to change the parameters of the save instruc-
tions, such as
AutoSave
and
Program
Backup. From the
Tools
menu, click
Options
to open the
System Options
dialog box, Figure 6-37. In the
Save
Figure 6-35. How to select a report option in the Report Preview dialog box.