I'm new to Digi and Phyton and would like to develop and application that on a first approach could read modbus data from a device connected to the serial port of a transport wr21... (rs485)
In fact I consider it to be the most complex part of what I want to do, but without it, the rest wouldn't make sense, so I'd like to start by this.
So far, I'm surfing the forums, looking what's available, wich is enought for me for the time being, but the wr21 came with no CD, and I've read about the "API Reference Guide",
what is it?
where can i find it?
Thanks for reading.