How to script the control logic of air conditioner?

[liangming011]

The KNX address returns an outdoor temperature value，If I want to set a scene at 0-10℃, set a scene at 10-25℃, set a scene above 25℃, how do I set it？

[Joep]

value = event.getvalue()

if value > 0 and value < 10 then
--do something
elseif value > 10 and < 25 then
--do something
elseif value < 25 then
--do something
end

---

You can also use >= 10 instead of > 10 for example.
In the first example also the value 10 itself is included in the second example only every value higher then 10.

[liangming011]

local temp=knxdatatype.decode(event.datahex,dt.float16)
local heat=knxobject.get('address','1/3/5')
local ac=knxobject.get('address','3/5/37')
local heat_on=toboolean(heat.data)
local ac_on=toboolean(ac.data)
--heating off
if not heat_on then
--制冷
if temp>24 and not ac_on then
alert('BR temp:%f,A/C ON',temp)
ac:write (1)
end
--过度季节制冷
if temp>15 and temp<24 and not ac_on then
alert('BR temp:%f,A/C ON',temp)
ac:write (2)
end
--过度季节制暖
if temp>10 and temp<15 and not ac_on then
alert('BR temp:%f,A/C ON',temp)
ac:write (3)
end



--制暖
if temp<10 and not ac_on then
alert('BR temp:%f,A/C OFF',temp)
ac:write(4)
end
end

---

Like this, would it work

---

1 value is refrigeration；2 value is Overmode refrigeration；3 value is Excessive mode heating；4 value is Making the model。

[admin]

3/5/37 will only change when current value of 3/5/37 is 0 and 1/3/5 is 0. Is there some external logic that sets 3/5/37 to 0? If not then you need to change your script. Can you write an algorithm of how the system should work? Then we can help you with a script.

[liangming011]

I'm just beginning to learn how to write.3/5/37 will only change to Turn off air conditioning when current value of 3/5/37 is 0.1/3/5 is Temperature detection module.The program written above, is to imitate the example of the official website to rewrite, so I would like to ask, if I achieve this function, where do I need to modify to use?

---

local temp=knxdatatype.decode(event.datahex,dt.float16)
local heat=knxobject.get('address','1/3/5')
local ac=knxobject.get('address','3/5/37')
local heat_on=toboolean(heat.data)
local ac_on=toboolean(ac.data)
--heating off
if not a_on then
--制冷
temp>24 then
grp.write('3/5/37', 1)

--过度季节制冷
elseif temp>15 and temp<24 then
grp.write('3/5/37', 2)


--过度季节制暖
elseif temp>10 and temp<15 then
grp.write('3/5/37', 3)




--制暖
elseif temp<10 and not ac_on then
grp.write('3/5/37', 4)

end

---

-- object mapped to this event must have its data type set
temp = event.getvalue('1/3/5')
if not a_on==0 then
--制冷
temp>24 then
grp.write('3/5/37', 1)

--过度季节制冷
elseif temp>15 and temp<24 then
grp.write('3/5/37', 2)


--过度季节制暖
elseif temp>10 and temp<15 then
grp.write('3/5/37', 3)




--制暖
elseif temp<10 and not ac_on then
grp.write('3/5/37', 4)

end

---

-- object mapped to this event must have its data type set
temp = event.getvalue('1/3/5')
if not a_on==0 then
--制冷
temp>24 then
grp.write('3/5/37', 1)

--过度季节制冷
elseif temp>15 and temp<24 then
grp.write('3/5/37', 2)


--过度季节制暖
elseif temp>10 and temp<15 then
grp.write('3/5/37', 3)




--制暖
elseif temp<10 and not ac_on then
grp.write('3/5/37', 4)

end

---

Two writes, that works?

[admin]

This example will set out_value depending on input temperature. This should be an event script attached to temperature sensor object so it executes each time temperature value changes.

Code:

value = event.getvalue()

if temp >= 24 then
  out_value = 1
elseif temp >= 15 then
  out_value = 2
elseif temp >= 10 then
  out_value = 3
else
  out_value = 4
end

grp.write('3/5/37', out_value)

[liangming011]

temp ,How to read the value 1/3/5?
temp = event.getvalue('1/3/5')?

[admin]

event.getvalue() returns the value of an object that triggered the event. If your event script is attached to 1/3/5 then value variable will contain current temperature sensor value.