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Problems Creating Datasource Modbus RTU
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Hi, This is my problem, Modbus nodo scan is "ok", more, Modbus read Data "No response from slave 1". need help please, thank you very much
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There could be many different causes of this issue including bad wiring, baud rate, etc.
Note that the Modbus Node Scan only works with certain devices. Did the scan find any slaves on the network. Maybe send a screenshot of your configuration.
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@JoelHaggar said:
There could be many different causes of this issue including bad wiring, baud rate, etc.
Note that the Modbus Node Scan only works with certain devices. Did the scan find any slaves on the network. Maybe send a screenshot of your configuration.
thank you very much Joel:
Attached image, I also confirm that communication is correct
Thanks for your answer. -
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You are testing reading 100 registers starting at 0. Try reading 1 or 10 and make sure you are using a register you know has a value in it. Every Modbus device is different so you need to look at the documentation on the device.
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I tried to create a connection in scadaBR and works perfect, attached image.
