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Manual Contents
This manual describes specifications, connections, and precautions for 120-series
I/O Modules. The 120-series I/O Modules are used with the MEMOCON GL120,
GL130 Programmable Controllers (PLCs).
Read this manual carefully and be sure to understand the information provided
before attempting to install or use 120-series I/O Modules.
Also, keep this manual in a safe place so that it can be used whenever necessary.
Visual Aids
The following aids are used to indicate certain types of information for easier refer-
ence.
Indicates references for additional information.
Indicates important information that should be memorized.
Indicates application examples.
Indicates supplemental information.
Indicates a summary of the important points of explanations.
Indicates inputs, operations, and other information required for correct operation
but that will not cause damage to the device.
Indicates definitions of terms used in the manual.
Notice
The following conventions are used to indicate precautions in this manual. Failure to
heed precautions provided in this manual can result in injury to people or damage to
the products.
Indicates precautions that, if not heeded, could possibly result in loss of life or seri-
ous injury.
Indicates precautions that, if not heeded, could result in relatively serious or minor
injury, damage to the product, or faulty operation.
©
Yaskawa, 1998
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 permission of Yaskawa. No patent liability is assumed
with respect to the use of the information contained herein. Moreover, because Yaskawa is con-
stantly 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, Yaskawa assumes no responsibility for errors or omissions. Neither is
any liability assumed for damages resulting from the use of the information contained in this
publication.
IMPORTANT
EXAMPLE
INFO
SUMMARY
Note
TERMS
WARNING
CAUTION
