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MELSEC-Q
8 ONLINE MODULE CHANGE
8.4 Precautions for Online Module Change
The following are the precautions for online module change.
(1) Always perform an online module change in the correct procedure. A failure to do
so can cause a malfunction or failure.
(2) When an online module change is made, the following buffer memory values are
cleared to "0".
• Sampling pulse number
• Accumulating count value
• Input pulse value
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