Technical data

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.

Disclaimer of liability

We have checked the contents of this manual for agreement with the hardware and software described.

Since deviations cannot be precluded entirely, we cannot guarantee full agreement. However, the data in

this manual are reviewed regularly and any necessary corrections included in subsequent editions.

Suggestions for improvement are welcomed.

Technical data subject to change.

Safety-related 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:

Warning

indicates that death, severe personal injury or substantial property damage can

result if proper precautions are not taken.

Caution

indicates that minor personal injury or property damage can result if proper

precautions are not taken.

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 equipment,

systems and circuits in accordance with established safety practices and standards.

Siemens Aktiengesellschaft

6ES5 998-2PR21

EWK Elektronikwerk Karlsruhe

Printed in the Federal Republic of Germany