Siemens SIMATIC S7-400H Manual page 2

Safety Guidelines
This manual contains notices you have to observe in order to ensure your personal safety, as well as to
prevent damage to property. The notices referring to your personal safety are highlighted in the manual by
a safety alert symbol, notices referring to property damage only have no safety alert symbol. The notices
shown below are graded according to the degree of danger.
Danger
!
indicates that death or severe personal injury will result if proper precautions are not taken.
Warning
!
indicates that death or severe personal injury may result if proper precautions are not taken.
Caution
!
with a safety alert symbol indicates that minor personal injury can result if proper precautions are not
taken.
Caution
without a safety alert symbol indicates that property damage can result if proper precautions are not
taken.
Attention
indicates that an unintended result or situation can occur if the corresponding notice is not taken into
account.
If more than one degree of danger is present, the warning notice representing the highest degree of
danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a
warning relating to property damage.
Qualified Personnel
The device/system may only be set up and used in conjunction with this documentation. Commissioning
and operation of a device/system may only be performed by qualified personnel. Within the context of the
safety notices in this documentation qualified persons are defined as persons who are authorized to
commission, ground and label devices, systems and circuits in accordance with established safety
practices and standards.
Prescribed Usage
Note the following:
Warning
!
This device and its components may only be used for the applications described in the catalog or the
technical description, and only in connection with devices or components from other manufacturers which
have been approved or recommended by Siemens.
Correct, reliable operation of the product requires proper transport, storage, positioning and assembly as
well as careful operation and maintenance.
Trademarks
All names identified by ® are registered trademarks of the Siemens AG.
The remaining trademarks in this publication may be trademarks whose use by third parties for their own
purposes could violate the rights of the owner.
Copyright Siemens AG 2005 All rights reserved
The distribution and duplication of this document or the
utilization and transmission of its contents are not permitted
without express written permission. 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 Automation and Drives
Geschaeftsgebiet Industrial Automation Systems
Postfach 4848, 90327 Nuernberg
Siemens Aktiengesellschaft
Disclaim of Liability
We have reviewed the contents of this publication to ensure
consistency with the hardware and software described. Since
variance cannot be precluded entirely, we cannot guarantee full
consistency. However, the information in this publication is
reviewed regularly and any necessary corrections are included
in subsequent editions.
Siemens AG 2005
Technical data subject to change.
6ES7988-8HA11-8BA0