Filter
Top Products
User’s Guide 15
Chapter 3
PPG Application Design
Overview
This chapter provides an overview of the process of designing and building an
application using PPG. The following topics are covered:
• Designing the Application on page 15.
•
Application Output on page 15.
•
Application Structure on page 16
• Node Types and the Parent-Child Relationship on page 17.
•
Creating Function Nodes on page 18
• Creating Operation Nodes on page 18
• Actual vs. Virtual Display on page 19.
•
Defining Program Flow on page 20.
•
Sending and Receiving Files on page 20.
•
Additional Resources on page 21.
Designing the Application
Application Output
Before you begin to design an application, you must decide how the resulting
data will be handled. You probably have a good idea of how you would like the
collected data to be output. The result of the application is usually a file of col-
lected data, so you must determine the purpose of the file and how it is orga-
nized; this determines what data is collected and how. You may want to
examine portions of collected data or work with data files downloaded into the
PT40. After you have determined the data output format, you can begin to
define the program steps and flow.
2342.book Page 15 Thursday, July 22, 2004 8:35 AM