[SOLVED] Simple group wall... but im missing something

Setup, Configuration and Use Scripts & Rules
1

I have a simple rule that for the life of me just will not fire… i am not sure if i am sleep deprived or missing something stupid.

rule "Power Wall Battery Total"
when
    Item gPowerwall changed
then
    logInfo("power","here")
end

I have the group defined, with the items.

Group gPowerwall

Number pw1p1 "Power Wall 1 - Pack 1 [%s]" (gPowerwall) { channel = "mqtt:topic:broker1:Powerwall01:pack1voltage" }
Number pw1p2 "Power Wall 1 - Pack 2 [%s]" (gPowerwall) { channel = "mqtt:topic:broker1:Powerwall01:pack2voltage" }
Number pw1p3 "Power Wall 1 - Pack 3 [%s]" (gPowerwall) { channel = "mqtt:topic:broker1:Powerwall01:pack3voltage" }
Number pw1p4 "Power Wall 1 - Pack 4 [%s]" (gPowerwall) { channel = "mqtt:topic:broker1:Powerwall01:pack4voltage" }

all 4 of those are updating pretty regularly. But that rule just doesn’t fire.

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Any thoughts? thanks! go easy on me, been a long weekend lol

2

This Group has no type, so it can’t take up any state.
If it had a type, this Group has still no state by default. (so it will never change)
You need to assin it a type and some kind of aggregatation function that allows for calculation of its state from member Item states.

Depending what you want to do with the rule, you may also be interested in Member of trigger

3

That was what I needed!!!

I needed to specify the group as being a number group. Then i was able to do the members, total up all the individual pack voltages and get my overall battery. Just like I needed!!! Thank you

rule "Power Wall Battery Total"
when
    Item gPowerwall received update
then
    var float totalbatteryvolts
    gPowerwall.members.forEach[pack |
        totalbatteryvolts = totalbatteryvolts + (pack.state as DecimalType).floatValue
    ]
    postUpdate(pw1voltage,totalbatteryvolts.floatValue)
end


Group:Number gPowerwall
Number pw1voltage "Power Wall 1 Total Voltage [%s]"
Number pw1p1 "Power Wall 1 - Pack 1 [%s]" (gPowerwall) { channel = "mqtt:topic:broker1:Powerwall01:pack1voltage" }
Number pw1p2 "Power Wall 1 - Pack 2 [%s]" (gPowerwall) { channel = "mqtt:topic:broker1:Powerwall01:pack2voltage" }
Number pw1p3 "Power Wall 1 - Pack 3 [%s]" (gPowerwall) { channel = "mqtt:topic:broker1:Powerwall01:pack3voltage" }
Number pw1p4 "Power Wall 1 - Pack 4 [%s]" (gPowerwall) { channel = "mqtt:topic:broker1:Powerwall01:pack4voltage" }
4

Did you know you could do this -

Group:Number:SUM gPowerwall "Summed volts [.1f V]"
1 Like
5

Woah! I didn’t even think of that!!!

Now I am going to have to try swapping some things out… That is a great call out!!

Thank you!