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Intended Audience 1
1 Intended Audience
This manual is intended for the following personnel, who must also have
knowledge of electrical systems (an electrical engineer or the equivalent).
• Personnel in charge of introducing FA systems into production facilities.
• Personnel in charge of designing FA systems.
• Personnel in charge of installing and connecting FA systems.
• Personnel in charge of managing FA systems and facilities.
2 General Precautions
The user must operate the product according to the performance specifica-
tions described in the operation manuals.
Before using the product under conditions which are not described in the
manual or applying the product to nuclear control systems, railroad systems,
aviation systems, vehicles, combustion systems, medical equipment, amuse-
ment machines, safety equipment, and other systems, machines and equip-
ment that may have a serious influence on lives and property if used
improperly, consult your OMRON representative.
Make sure that the ratings and performance characteristics of the product are
sufficient for the systems, machines, and equipment, and be sure to provide
the systems, machines, and equipment with double safety mechanisms.
This manual provides information for using the Programmable Terminal. Be
sure to read this manual before attempting to use the software and keep this
manual close at hand for reference during operation.
!WARNING It is extremely important that Programmable Terminals and related devices be
used for the specified purpose and under the specified conditions, especially
in applications that can directly or indirectly affect human life. You must con-
sult with your OMRON representative before applying Programmable Termi-
nals to the above-mentioned applications.
!WARNING Do not use input functions such as PT touch switches for applications where
danger to human life or serious damage is possible, or for emergency switch
applications.
3 Safety Precautions
Read these safety precautions carefully and make sure you understand them
before using the Programmable Terminal so that you can use it safely and cor-
rectly.
Safety Conventions and Their Meanings
This operation manual uses the following conventions and symbols to indicate
cautions, warnings, and dangers in order to ensure safe use of the NT31/31C.
The cautions, warnings, and dangers shown here contain important informa-
tion related to safety. The instructions in these cautions, warnings, and dan-
gers must be observed.
!WARNING Indicates a potentially hazardous situation which, if not avoided, could result
in death or serious injury.
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