You pasted a link to the modbus tcp binding?! I was talking about the serial binding.
I can’t find anything about how to configure these params for serial binding and I also had a look at the source code where it is hard coded. So I wonder if it is configurable. Maybe you misunderstood my post?
Yes sorry, I thought you were talking about modbus serial binding (the wiki title is a bit misleading as the binding supports serial as well). The general purpose serial binding is naturally a different matter.
Could the config format could reuse the format introduced by the modbus binding?