Vera Edge...setting up multi Trigger Scenes

Community Playground Getting Started & Initial Setup
1

I have just installed a Vera edge (UI 7 ) in our business building to control the heating , which consists of two large areas. The heating source is an oil boiler…with water pumped to large ceiling fan assisted blowers / heat exchangers in each area.

I have fitted an on / off relay on the boiler and each of the two blowers / fans. Previously all these three were switched by independent mechanical electrical timer switches. which was totally inadequate as there was no feedback on temp , in fact no temp control in the heated areas at all.

I have added a room thermometer to each of the two heated areas ( Secure SES301 )

I have added a Fibaro multi sensor in the boiler room with a thermometer on the boiler water out / returns temp / outside temp etc.

All these components work fine, but I am having difficulty with some scenes.

I am having no problem with a single sensor , or time schedule as a trigger…switching a device…but

I am having difficulty where I want two triggers to be satisfied (AND ) , before a device is switched.

For example, I only want to turn on the blower fan, when the temp in that area is below 13C AND the boiler out temp (circ water) is above 60C…so that I do not have the blower on while cold water is circulating thru the heat exchanger.

So I selected the room stat as a trigger and set it for temp below 13C & selected boiler out temp as trigger above 60C…but the associated device (relay switch) is switching on once the temp below 13C condition is satisfied…whereas I want it to wait until the boiler out temp condition of 60C is also satisfied.

When setting up the scene , I went into advanced editor and selected…“when ALL devices…” instead of “when any…” as I thought that might be selecting AND instead of OR…buy no joy yet.

Im hoping that I can achieve this within Scenes…and that I do not have to delve into more in depth Logic programming at this stage.

Any suggestions please…

Many Thanks
Tom

2

Vera is unable to do AND logic by default. To accomplish your goal, you would need to use Lua code.

See @RexBeckett’s fantastic Conditional Scene Execution: Some Examples.

You can also use the Program Logic Event Generator(PLEG) plugin to more easily accomplish this functionality.

3

Take a look at Combination switch plugin - MiOS Apps

Set it like this:
When room temp. below 13 C TRUE
When boiler water temp above 60 C TRUE

Switch is on when 2 or more watched items are true.

Then use this switch as trigger for your scene. Easy peasy :slight_smile:

4

Thanks for the responses.

I installed the "Combination Switch"plug in as suggested, have read some more posts and understand that it is indeed what I need to meet my requirements…but I cannot see how I attribute the required conditions to the switch.
The switch appears in device list and I have option of naming it and assigning to a room

Under settings tab , I get

Failed to get plugins
Switch is on when or more watched items are true.

Is it installed correctly ?

Under advanced , I get

device #68
Controlled via
Device params
name
This refers to parent etc…gets very confusing to this newbe here !!!

Am I missing something / have not installed correctly ?

Any tips on correctly setting this up would be really appreciated.

Many Thanks
Tom

5

There is a little startup learning (Less than LUA) but you should look at PLEG if you are going to do more than a couple of boolean logic scenes.

See:
http://forum.micasaverde.com/index.php/topic,21603.0.html

6

I think your plugin didn’t finish installing. Try rebooting your Vera. After that you should get a menu like this under ‘configure’:

7

Ok, Thanks for that…Im away for the next week so will have a fresh look on my return.

Many Thanks
Tom