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Thread: Pentair Intelliflo VF RS485 communications protocol

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    Pentair Intelliflo VF RS485 communications protocol

    Hi All,

    I recently just upgrade my pool pad with an intelliflo VF pump. Its a beautiful piece of gear! I also made a FPGA based controller for it, where it also takes care of all my jandy actuators, backwashing, chlorinator and solar heating system. The only problem is I cannot find the protocol for the VF pump anywhere. Has anyone managed to interface to the intelliflo VF using their own controller or a PC? I have just setup a RS485 half dulplex connection to my pump and was hoping to talk to it. If anyone has any info that would be great.

    If your happy to help out, im happy to share my design with anyone who also wants to automate these four tasks with a single controller. Im using an open source FPGA based Nanoboard 3000 as the controller.

    Mark Stinson
    Woodland, CA
    IG 12,545g Gunite/Plaster with attached spa, Hayward Northstar 3HP pump, Pentair Clean & Clear Plus 420
    Alas, I have no heater for my spa (yet)! :-(

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Pentair Intelliflo VF RS485 communications protocol

    Welcome to TFP!

    I believe that the IntelliFlo pump communications protocol is proprietary. No one has posted anything about it anywhere that I know of, though Hayward seems to have reverse engineered it for the AquaLogic/ProLogic line. Pentair has some motivation to keep it proprietary.

    The best way to reverse engineer it would be to get a Pentair controller and watch the messages that go past when it is talking to the pump.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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