Recent content by puuteknikko

  1. P

    Problem writing into register (address invalid)

    Thank you so much, it was that simple. :) Now I only need to work some decent values over the winter, easier than figuring Modbus out :LOL:
  2. P

    Problem writing into register (address invalid)

    Subtracting the register value by 1 causes an exception 3 instead of 2. print (c.read_holding_registers(502, 2)) c.write_multiple_registers(501, [41, 65535]) print (c.read_holding_registers(502, 2)) This is the debug output from the Python shell for that script: Tx [E7 13 00 00 00 06 01] 03 01...
  3. P

    Problem writing into register (address invalid)

    The device is a district heat exchanger (Ouman H23) with two separate circuits for heating and warm water supply in my house. What I'm looking for is integrating it into my existing home-made home automation script to adjust the heating curve and circulated warm water temperature as needed...
  4. P

    Problem writing into register (address invalid)

    Hi, I'm a Modbus newbie, who is trying to control a heating device remotely with a Python script. The device is connected via RS485 to an Elfin EE11, which acts as a Modbus server. I can connect to the server and read the necessary register values for example with this: from pyModbusTCP.client...
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