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change slave ID

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Hello everyone,

At the moment i am working on a modbus project.
I am trying to change my slave ID but so far without any luck.
The program i use is Modbus poll but i can't seem to figure out how to change the ID.
Does anyone have any suggestions on how to change the slave ID?
The ID needs to change from 01 to 30 (1E)


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That would have to be done on the device.  The method would vary depending on the device.  More modern Ethernet devices often have a web server so you can just browse to the device.  Serial based devices often either have DIP switches, or alternatively, use a specific Modbus register to change the slave ID, however, that register # is not universal, so you'd have to read the device's documentation to determine this.

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