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[Design Instructions]
!

DANGER
When data change, program change or status control is to be made from a personal computer
to the running PLC, configure up an interlock circuit in the outside of the PLC system to ensure
that the whole system will always operate safely.
Also, determine corrective actions to be taken for the system when a communication error
occurs due to a cable connection fault or the like in online operation performed from the
personal computer to the PLC CPU.
!

CAUTION
Online operation performed with a personal computer connected to the running CPU module
(especially program change, forced output or oper ating status change) should be started after
carefully reading the manual and fully ensuring safety.
Not doing so can cause machine damage or accident due to miss operation.