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Modbus monitoring of residential boiler

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agt24
agt24 Member Posts: 2
in Thermostats and Controls
I’d like to try some basic modbus charting similar to what Eric Sandeen has done here:
http://sandeen.net/wordpress/energy/residential-boiler-monitoring-via-modbus/

but my boiler does not currently support modbus. It’s a Weil-McLain HE II and the control board is a Gold GV Model 1013-200. I'm looking for suggestions for a control board I could swap in that would support modbus readout.

Any ideas?

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  • Tim Potter
    Tim Potter Member Posts: 273
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    Maybe this would work:

    http://www.welserver.com/

    or I use one of these:

    http://www.controlbyweb.com/x300/

    Love to hear how it works out.

    Cheers:

    Tim
    Winter Park, CO & Arvada, CO
  • agt24
    agt24 Member Posts: 2
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    Thanks, Tim. But I'd like to chart (and possibly control) the boiler operating variables (like burner firing rate) and for that I need a modbus interface. I've worked with a commercial Lochinvar boiler that lets you do this. Now I'm curious if I can do it with my residential boiler, too, without replacing the entire unit.
  • SWEI
    SWEI Member Posts: 7,356
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    agt24 said:

    my boiler does not currently support modbus. It’s a Weil-McLain HE II and the control board is a Gold GV Model 1013-200. I'm looking for suggestions for a control board I could swap in that would support modbus readout.

    In short, no. That's a 15 year old fixed firing rate boiler, so how would it be able to tell you anything about its firing rate?

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