Installation guide

DC 900-1564A 25
Chapter
3
Typical Sequence
of Operations
3.1 Initialization
Section 1.3 on page 18 summarizes the programming interfaces available for use with
the ICP. In all cases, the application first must perform any initialization required by the
selected programming interface, and then must open an I/O path to the ICP prior to
writing commands or reading responses to the protocol services on the ICP.
After the application establishes an I/O path to the ICP, it writes commands to the ICP,
and reads responses from the ICP. See Chapter 4 and Chapter 5 for additional details
regarding the command and response formats. This chapter describes the typical
sequence to execute selected specific operations.
The sections that follow are presented in the order in which they are generally used.
However, restrictions associated with the access mode specified when attaching an ICP
link might forbid one or more of the other listed operations.
Figure 3–1 is a diagram of the commands and responses described in Section 3.2
through Section 3.13.