Siemens SIMATIC S7-400H Manual page 2

Safety Guidelines
This manual contains notices which you should observe to ensure your own personal safety, as well as to
protect the product and connected equipment. These notices are highlighted in the manual by a warning
triangle and are marked as follows according to the level of danger:
!
!
!
Qualified Personnel
Correct Usage
!
Trademarks
Copyright Siemens AG 1998 All rights reserved
The reproduction, transmission or use of this document or its
contents is not permitted without express written authority.
Offenders will be liable for damages. All rights, including rights
created by patent grant or registration of a utility model or design, are
reserved.
Siemens AG
Bereich Automatisierungs- und Antriebstechnik
Geschaeftsgebiet Industrie-Automatisierungssysteme
Postfach 4848, D- 90327 Nuernberg
Index-2
Siemens Aktiengesellschaft
Danger
indicates that death, severe personal injury or substantial property damage will result if proper precau-
tions are not taken.
Warning
indicates that death, severe personal injury or substantial property damage can result if proper precau-
tions are not taken.
Caution
indicates that minor personal injury or property damage can result if proper precautions are not taken.
Note
draws your attention to particularly important information on the product, handling the product, or to a
particular part of the documentation.
Only qualified personnel should be allowed to install and work on this equipment. Qualified persons are
defined as persons who are authorized to commission, to ground, and to tag circuits, equipment, and sys-
tems in accordance with established safety practices and standards.
Note the following:
Warning
This device and its components may only be used for the applications described in the catalog or the
technical descriptions, and only in connection with devices or components from other manufacturers
which have been approved or recommended by Siemens.
This product can only function correctly and safely if it is transported, stored, set up, and installed cor-
rectly, and operated and maintained as recommended.
SIMATIC , SIMATIC HMI and SIMATIC NET are registered trademarks of SIEMENS AG.
Some of other designations used in these documents are also registered trademarks; the owner's rights
may be violated if they are used by third parties for their own purposes.
Disclaimer of Liability
We have checked the contents of this manual for agreement with the
hardware and software described. Since deviations cannot be pre-
cluded entirely, we cannot guarantee full agreement. However, the
data in this manual are reviewed regularly and any necessary cor-
rections included in subsequent editions. Suggestions for improve-
ment are welcomed.
Siemens AG 1998
Technical data subject to change.
S7-400H Programmable Controller Fault-Tolerant Systems
A5E00068197
07/2000