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SAFETY PRECAUTIONS
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(Be sure to read these instructions before using the product.)
Before using this product, read this manual and the relevant manuals introduced in this manual carefully
and handle the product correctly with full attention to safety.
The precautions given in this manual are concerned with this product. For the safety precautions of the
programmable controller system, please read the user's manual of the CPU module to use.
In this manual, the safety instructions are ranked as "DANGER" and "CAUTION".
DANGER
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.
Note that the failure to observe
!
CAUTION level instructions may also lead to serious results
according to the circumstances.
Be sure to observe the precautions of both levels to ensure personal safety.
Please keep this manual in accessible place and be sure to forward it to the end user.
[Design Precautions]
!
DANGER
• When a communication error has occurred in data link, data in the master module are
maintained.
Establish an interlock circuit in the sequence program using communication status information
so that the safety will be ensured.
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CAUTION
• Do not bunch the control wires or communication cables with the main circuit or power wires, or
install them close to each other.
They should be installed 100mm (3.9inch) or more from each other.
Not doing so could result in noise that would cause erroneous operation.
• Do not write data to "Reserved area" of remote I/O areas or remote devices.
Doing so may cause malfunctions of the product.
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