OpenSprinkler Forums OpenSprinkler Unified Firmware Master station start before

This topic contains 3 replies, has 2 voices, and was last updated by  Ray 5 days, 17 hours ago.

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  • #59632

    wifi75
    Participant

    hello to all,
    it is possible run before, 10 seconds master station (punp) before start zone irrigation?
    Question is why Opensprinkler delays the start of the pump?

    • This topic was modified 1 month, 1 week ago by  wifi75.
    • This topic was modified 1 month, 1 week ago by  wifi75.
    #60380

    Ray
    Keymaster

    This is due to the way the scheduler is implemented, which only activates the master if a non-master zone is activated. Since it currently doesn’t look into the future to see what zone would be activated, say, in the next xx seconds, it can’t start the master before the zone starts.

    That said, there is a work-around to achieve the effect of this by using a dummy zone. Specifically, you can use the first non-master zone (for example, zone 1 or zone 2 depending on which one is your master zone) as a dummy zone. You can schedule the dummy zone in a program. The reason it needs to be the first non-master zone is that that’s the zone that runs the first in a program. Let’s say you want the master to open 10 seconds before any other zone starts, you just schedule the dummy zone for 10 seconds, it will start first and activate master along with it (the dummy zone itself doesn’t operate any physical valve), then it goes to the next zone (which is a physical zone). That achieve the effect of opening master 10 seconds before a zone.

    #60408

    wifi75
    Participant

    Yes I understand the workarround, but why the application it is without this features?

    #60435

    Ray
    Keymaster

    “but why the application it is without this features?” — I don’t understand this sentence.

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OpenSprinkler Forums OpenSprinkler Unified Firmware Master station start before