Modbus RTU 485 Master

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MikeStern
Posts: 8
Joined: 29 Aug 2022, 13:26
Answers: 0

Modbus RTU 485 Master

Post by MikeStern »

Hi,
i have a communication problem with Modbus RTU communication on MyrevPi Connect + with Voltage Meter Lovato DMG210
I always get a reading with zero value on my VL1 reading register at address 0002H (Single Phase L1 Voltage).
Can I get help to solve the problem?


This the general Diagram
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This my revPi Modbus Master settings
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This my revPi Register and Action Status
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This my Modbus Address map of my device /b]
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Note:
If I connect the instrument Lovato DMG210 directly to my pc, through a simpleusb / rs485 converter ad Modbus Poll software , the reading of the registers working.
Mike
EkoGreenPower.com
u.biakoup
KUNBUS
Posts: 182
Joined: 14 Apr 2022, 13:04
Answers: 2

Re: Modbus RTU 485 Master

Post by u.biakoup »

Hello,
please have a look here : Modbus-RTU Communication.
Video tutorial modbus RTU
Maybe this could help you.
Best Regards

Ulrich Kouatang Biakoup | Technical Support
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