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victronenergy / venus

Victron Energy Unix/Linux OS
https://github.com/victronenergy/venus/wiki
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RS485 multiple devices per port #1245

Closed wawibu closed 3 months ago

wawibu commented 3 months ago

is it possible to connect multiple devices to one RS485 port?

The scan runs only until it find the first Modbus device. This works for each device individually. As soon as more than 1 device is connected to one RS485 port, only the device with the lowest ID is recognized.

Is there a way to let the scanner move on through all IDs which are defined within the units section?

wawibu commented 3 months ago

using the right topology and a termination resistor solved the issue