Siemens SIMATIC S5-100U System Manual page 18

How to Use This System Manual
Conventions
This system manual is organized in menu form to make it easier for you to find information. This
means the following:
• Each chapter is marked with printed tabs.
• At the front of the system manual is an overview page that lists the title of each chapter.
Following this page, you will find a table of contents.
• At the beginning of each chapter is a table of contents for that chapter. Each chapter has three
level headings that are numbered. The fourth level heading is not numbered but appears in
boldface type.
• Pages, figures, and tables are numbered separately for each chapter. On the back of the table
of contents for each chapter you will find a list of the figures and tables that appear in that
chapter.
This system manual employs the following specific structuring devices:
• Specific terms have characteristic abbreviations (e. g., programmer is PG).
Appendix A contains a list of abbreviations.
• Footnotes are marked with a raised number (e. g., "
the corresponding explanations in the lower margin of the page or under a figure or table if the
footnote appears in one of these.
• Lists are designated with bullets (• as in this particular listing) or with hyphens (-).
• Cross references are indicated as follows: (see section 7.3.2). There are no references to
specific page numbers.
• Dimensions in drawings are indicated in millimeters and inches.
• Value ranges are indicated as follows: 17 to 21 or 17-21.
• Especially important information appears in framed boxes such as the following:
Warning
You will find definitions for the terms "Warning," "Danger," "Caution," and "Note" in the Safety-
Related Guidelines for the User at the end of the introduction.
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") or a raised asterisk (" * "). You will find
EWA 4NEB 812 6120-02b
S5-100U