User`s manual

A - 1
SAFETY PRECAUTIONS
(Read these precautions before using this product.)
Before using this product, please read this manual and the relevant manuals carefully and pay full
attention to safety to handle the product correctly.
The precautions given in this manual are concerned with this product. Refer to the user’s manual of the
CPU module to use for a description of the programmable controller system safety precautions.
In this manual, the safety precautions are classified into two levels: "
WARNING" and " CAUTION".
Indicates that incorrect handling may cause hazardous conditions,
resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous conditions,
resulting in minor or moderate injury or property damage.
Under some circumstances, failure to observe the precautions given under "
CAUTION" may lead to
serious consequences.
Observe the precautions of both levels because they are important for personal and system safety.
Make sure that the end users read this manual and then keep the manual in a safe place for future
reference.
[Design Precautions]
!
WARNING
In the case of a communication failure in the network, data in the master module are held.
Check the communication status information (SB, SW) and configure an interlock circuit in the
sequence program to ensure that the entire system will operate safely.
!
CAUTION
Do not install the control lines or communication cables together with the main circuit lines or
power cables.
Keep a distance of 100mm (3.94 inches) or more between them.
Failure to do so may result in malfunction due to noise.
WARNING
CAUTION