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How to configure Power Operation to read 64 bit values via modbus protocol

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Hoang_Phu
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Posted: ‎2025-03-30 04:51 AM

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‎2025-03-30 04:51 AM

How to configure Power Operation to read 64 bit values via modbus protocol

Hello guys, Im reading the line voltage value from the P3 relay. This value is more than 65535, so i cant read it. Please help me. How to adjust it?

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Frank_Wang
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Posted: ‎2025-04-22 06:42 PM

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‎2025-04-22 06:42 PM

May I know which value you want to read from P3 relay?

Because as I know, in P3 relay, all the values are kept within 16 bits. 

Frank_Wang_0-1745372064732.png

And normally the scaling setting will be sufficient to keep the value within 65535.

Frank_Wang_1-1745372191875.png

Frank_Wang_2-1745372274657.pngFrank_Wang_3-1745372304129.png

So my understanding is that we may not need to configure it in PO, normally no special action is required, because most default scaling setting in P3 is sufficient.

I have attached a Modbus configuration application note for P3 for your reference.

Hope this can help.

Best regards,

Frank

 

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