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Aqua Balance Data Port

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scatgo
scatgo Posts: 97
in THE MAIN WALL

Anybody know how to tap into what looks like a data port on a Weil Mclain Aqua balance Mon Con?

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  • 109A_5
    109A_5 Posts: 4,607
    image.png image.png image.png

    They kind of give you enough mention like the stuff above and a phone app to get you curious, BUT….

    image.png
    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
  • scatgo
    scatgo Posts: 97
    edited 6:06AM

    Amazon.com: waveshare Industrial USB to TTL (C) 6pin Serial Cable, Original FT232RNL Chip, Multi Protection Circuits, Multi Systems Support, with Hardware Flow Control : Electronics

    Ok. If I were to get the TTL to usb cable where can I find a pin layout to wire it to the proprietary data port? And one i get that right wont I need software on my PC to read the information I get from that data port?

  • 109A_5
    109A_5 Posts: 4,607

    IMO the hardware communication level is the easy part. If needed you can just trace the electrical path of the communications port you are interested in back to the chip it goes to, then look up the chip. However USB is a bit obvious. The hard part is the communication protocols used. If the Boiler never squawks anything how do you figure out how to talk to it or query it for data.

    I've seen the Intel Hex data format over RS-232 used in other equipment (not PROM programming). I never would have guessed they used the Intel Hex data format part. Also in that case if you did not know how to query it, it would never even transmit out a Byte of data.

    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System

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