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SAFETY PRECAUTIONS
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(Always read these instructions before using this equipment.)
Before using this product, please read this manual and the relevant manuals introduced in this manual
carefully and pay full attention to safety to handle the product correctly.
The instructions given in this manual are concerned with this product. For the safety instructions of the
programmable controller system, please read the CPU module user's manual.
In this manual, the safety instructions are ranked as "DANGER" and "CAUTION".
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DANGER
CAUTION
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Indicates that incorrect handling may cause hazardous conditions,
resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous conditions,
resulting in medium or slight personal injury or physical damage.
Note that the
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CAUTION level may lead to a serious consequence according to the circumstances.
Always follow the instructions of both levels because they are important to personal safety.
Please save this manual to make it accessible when required and always forward it to the end user.
[Design Instructions]
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DANGER
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For data change, program change, and status control made to the PLC which is running from a
Personal computer, configure the interlock circuit externally so that the system safety is
ensured. The action to be taken for the system at the occurrence of communication errors
caused by such as loose cable connection must be determined for online operation of PLC from
Personal computers.
[Design Instructions]
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CAUTION
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Be sure to read the manual careful and exercise an appropriate amount of caution connecting to
PLC CPU and performing online operations (PLC CPU program change during RUN, forced
input/output operation, RUN-STOP or other operation condition changes, remote control
operation) while the personal computer is operating.
Regarding the PLC CPU program change during RUN (Write during RUN), the program may be
corrupted or have other problems depending on operation conditions. Exercise the appropriate
amount of caution with regard to the Caution points in section 16.9.