Mitsubishi Electric MELSEC IQ-R series Reference Manual page 4

Programmable controller

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Table of Contents

[Operating precautions]

● When changing data and operating status, and modifying program of the running programmable

controller from an external device such as a personal computer connected to an intelligent function

module, read relevant manuals carefully and ensure the safety before operation. Incorrect change or

modification may cause system malfunction, damage to the machines, or accidents.

● Do not power off the programmable controller or reset the CPU module while the setting values in the

buffer memory are being written to the flash ROM in the module. Doing so will make the data in the

flash ROM undefined. The values need to be set in the buffer memory and written to the flash ROM

again. Doing so also can cause malfunction or failure of the module.

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