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 only. For the safety precautions of the
programmable controller system, refer to the user's manual for the CPU module used.
In this manual, the safety precautions are classified into two levels: "
WARNING" and "
CAUTION".
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 Data
link status (each station) (SW00B0 to SW00B7) and configure an interlock circuit in the program to
ensure that the entire system will operate safely.
●
When the module is disconnected due to a communication failure in the network or the CPU module is
in the STOP status, all outputs are held or turned off according to the parameter setting.
Configure an interlock circuit in the program to ensure that the entire system will always operate
safely even in such a case. If not, an accident may occur due to an incorrect output or malfunction.
●
Outputs may remain on or off due to a failure of the module. Configure an external circuit for
monitoring output signals that could cause a serious accident.
●
Do not use any "use prohibited" signals as a remote input or output signal. These signals are reserved
for system use. Do not write any data to the "use prohibited" area in the remote register. If these
operations are performed, correct operation of the module cannot be guaranteed.
WARNING
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.
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