question

nickdb avatar image
nickdb asked

node red and ESS inverter limits

I have been fiddling with logic to adjust the ESS inverter limit.

The setting in the node allows a value of 0 to any value you like, but there does not seem to be a way to pass a value to disable the limit.

If inverter limits are disabled, the value read back from the node is by default 0 which means no inverting.

Any ideas how this parameter can actually be disabled instead of being left on and configured with a high value?

ESSNode-RED
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russ avatar image russ commented ·
Which node are you referring to?
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nickdb avatar image nickdb ♦♦ russ commented ·

@Russ as you can see on the GX inverter power limits are disabled:

screenshot-2022-07-26-at-132222.png

If you query this value in node red:

screenshot-2022-07-26-at-132154.png

It returns 0.

If you set the parameter to 0 then ESS enables limiting and sets it 0W, so no inverting ESS#7

There doesn't seem to be a way to set a disable flag via the same node, you can only set a high enough limit to simulate it being unlimited.

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mr-manuel avatar image
mr-manuel answered ·

To disable it just set it to -1. This works with all values that can be disabled.

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nickdb avatar image nickdb ♦♦ commented ·
Indeed, worked that out a while ago and it is working well in my flows.

Iirc at the time, pulling the value from the node used to show a 0, on current nodes it now reports -1 as expected, which is where the confusion originated.

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richie-gorrod avatar image richie-gorrod nickdb ♦♦ commented ·
many thanks - this forum is fantastic for this.


Now to get state of charge out of the car into node red. :-)

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