A device (a heating element) should be powered up for a given time frame[1] once a week. Which controller would be best suited for this usecase? I had a look at the Controller IO Heating Element but it seems a bit over-complicated for our use case. Is there a better suited controller? Additionally, I’m not sure how to provide the date parameter in JSCalender format to the Controller IO Heating Element. I found following example in ControllerHeatingElementImplTest9.java:
{
"@type":"Task",
"start":"08:00:00",
"duration": "PT12H",
"recurrenceRules":[
{
"frequency":"daily"
}
],
"openems.io:payload": {
"sessionEnergy": 12000
}
}
But to be honest, I’m not sure how to translate that to the input field in the controller set-up screen of the UI. Would { "frequency":"weekly" } be enough for the Scheduler input field?
Note: A more advanced controller algorithm would make use of a time frame with feed to grid within the upcoming seven days and/or a time frame with the cheapest price to optimize the energy usage/price. Main guardrail is running the device at least every seven days.
Actually, until a given temperature is reached, but right now we don’t have access to the temperature sensor, thus we will empirically analyze the time needed to heat up. ↩︎