Siemens SIMATIC S5-115U User Manual page 21

Simatic s5 series cpu 941-7ub11 cpu 942-7ub11 cpu 943-7ub11 and cpu 943-7ub21 cpu 944-7ub11 and cpu 944-7ub21
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S5-115U Manual
Certain conventions were observed when writing the manual. These are explained below.
A number of abbreviations have been used.
Example: Programmer (PG)
Footnotes are identified by superscripts consisting of a small digit (e.g. "1") or "*". The actual
footnote is generally at the bottom left of the page or below the relevant table or figure.
Lists are indicated by a black dot (•), as in this list for example, or with a dash (-).
Instructions for operator actions are indicated by black triangles ( ).
Cross references are shown as follows:
"( Section 7.3.2)" refers to Section 7.3.2.
No references are made to individual pages.
All dimensions in drawings etc. are given in millimetres followed by inches in brackets.
Example: 187 (7.29).
Values may be represented as binary, decimal or hexadecimal numbers. The hexadecimal
number system is indicated with a subscript (example F000
Information of special importance is enclosed in black-edged boxes:
Warning
!
See the "Safety-Related Guidelines" for definitions of the terms "Warning", "Danger", "Caution"
and "Note".
Manuals can only describe the current version of the programmer. Should modifications or
supplements become necessary in the course of time, a supplement will be prepared and included
in the manual the next time it is revised. The relevant version or edition of the manual appears on
the cover. The present manual is edition "04". In the event of a revision, the edition number will
be incremented by "1".
After revision of edition "03", the contents of edition "04" were updated.
EWA 4NEB 811 6130-02b
)
H
Introduction
xix

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