Omron NT20M Operation Manual page 4

Notice:
OMRON products are manufactured for use according to proper procedures by a qualified operator
and only for the purposes described in this manual.
The following conventions are used to indicate and classify warnings in this manual. Always heed the
information provided with them.
DANGER!
Caution
Product References
All OMRON products are capitalized in this manual. The word "Unit" is also capitalized when it refers
to an OMRON product, regardless of whether or not it appears in the proper name of the product.
The abbreviation "Ch," which appears in some displays and on some OMRON products, often means
"word" and is abbreviated "Wd" in documentation in this sense.
The abbreviation "PC" means Programmable Controller and is not used as an abbreviation for any-
thing else.
IBM and IBM PC/AT are registered trademarks of International Business Machines Corporation.
MS-DOS is a registered trademark of Microsoft Corporation.
Visual Aids
The following headings appear in the left column of the manual to help you locate different types of
information.
1, 2, 3...
 OMRON, 1991
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any
form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permis-
sion of OMRON.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is
constantly striving to improve its high-quality products, the information contained in this manual is subject to change
without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no
responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the informa-
tion contained in this publication.
Indicates information that, if not heeded, could result in loss of life or serious
injury.
Indicates information that, if not heeded, could result in minor injury or dam-
age to the product.
Note Indicates information of particular interest for efficient and convenient opera-
tion of the product.
Indicates lists of one sort or another, such as procedures, precautions, etc.
v