Rockwell Automation 1747-PCIS API Software - Open Controller - Manual (Page 33)

1 Publication 1747-UM002A-US-P - June 2000
Chapter
3
Developing Applications
Introduction This chapter describes the proper programming sequence for your
application. This chapter also describes how to partition the dual port
memory in the 1746 I/O PCI Interface.
How the API Functions
Are Organized Each of the API functions falls into one of these four categories:
•
scanner initialization
•
scanner I/O configuration
•
data input/output
•
user interface/miscellaneous
Chapter 6 describes each API function and identifies its functionality
group.
Programming Sequence Follow this programming sequence when you develop your
application.
Access the scanner
1
Initialize the scanner
2
Configure the scanner
3
Control scanner
operation
4
Scan I/O
5
Initialize the scanner
2