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User’s Guide 179
Appendix H
Glossary
This section contains definitions for terms used in this manual. Review and
familiarize yourself with these terms before using PT Program Generator
(PPG) to create custom programs.
Call node A Call node executes a branch to a subroutine.
columns The display screen of your PSC portable is divided vertically into six-
teen columns, numbered 0 through 15.
Copy node A
Copy node is used to transfer information from one file or register to
another file or register.
data collection Data collection is the process of gathering information by scanning bar
codes or using data keys to enter values into a portable.
Display node A
Display node is used to define messages to appear on a portable’s
screen.
field A field is a place in a register for the entry of or access to a specified
type of data. Fields and their locations in a register are defined by tem-
plates.
file A file is a storage location for data. Flow charts you create in PPG are
stored in files on your PC. Portables use a different type of file for stor-
ing collected or downloaded data (see portable file).
Frames Frames are the objects you use to create the general flow chart of your
data-collection tasks. Each frame in a program flow chart represents a
major function or option. Typically, a program's frames include a Main
Menu frame and a frame for each option on the menu. Links connect
the frame in a way that indicates program flow.
Function Nodes
Frames and Subroutines are referred to as Function Nodes.
Refer to Operation Nodes for
Menu, Display, Input, Output, Ver-
ify
, Copy, Modify, Math, and Call.
parse To divide or dissect data into logical component parts.
index An index is a number used to access a single record in a file.
2342.book Page 179 Thursday, July 22, 2004 8:35 AM