Rockwell-automation 2098-UWCPRG Ultraware Software User Manual Bedienungsanleitung PDF herunterladen (Seite 303)

Rockwell Automation Publication 2098-UM001G-EN-P - February 2011 305

Creating and Running Programs Chapter 6

Using Header Files

A header file is a text file that contains C programming language code, which

Ultraware software uses to create an executable program file for an Ultra5000

drive. A header file is identified by its .h extension and contains external

declarations of variables and functions that the source file can use. Each header

file may contain:

• # include statements, (which refer to other header files - identified by

their .h extensions), and

• the C code declarations.

You can move a header file to an Ultra5000 drive's Archives branch for storage.

Creating a New Header File

To create a new header file, perform this step.

1. Use one of these commands:

• Click Header File in the Insert menu.

• Click the project in the Workspace window, and then right-click Insert

Header File.

A new header file appears in the selected place in the Workspace window. The

name of the new header file is Header.h or (if Header.h already exists) Headern.h,

where n is the lowest integer that creates a unique header file name within the

selected project.

Once a header file is created, you can configure its parameters (for example,

change its name), and edit its contents.

Renaming a Header File

To rename a header file, perform these steps.

1. Click the header file in the Workspace window.

2. Use one of these commands:

• Click Properties in the File menu.

• Right-click Properties from the pop-up menu.

• Double-click the selected source file.

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Rockwell-automation 2098-UWCPRG Ultraware Software User Manual Bedienungsanleitung Seite 303