I'm setting up a Modbus network.
I have a Raspberry Pi, the Pi should be functioning as a server (collecting the data).
And the data will come of multiple Arduino running as a client.
I hope I say that correct.
See the photo for a layout https://i.stack.imgur.com/3QMea.jpg of course will the Arduino's have an ethernet shield and will run the Modbus library.
On the Pi, I have the pyModbusTCP package.
And I have successfully configured a Modbus Server. With the easy Modbus client software I have a connection with the Pi.
But now I would like to read the data out of the server. somebody out here who knows how I do that? or do I have the wrong approach to the whole thing?
the Arduino only need to send data, not receive data.
import argparse
from pyModbusTCP.server import ModbusServer
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('-H', '--host', type=str, default='192.168.10.43',
help='Host')
parser.add_argument('-p', '--port', type=int, default=10502, help='TCP
port')
args = parser.parse_args()
server = ModbusServer(host=args.host, port=args.port)
server.start()
