Domoticz

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http://<IP-address>/real_time_data.xml

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<real_time_data><state>Normal</state><v-grid>228.8</v-grid><i-grid>0.25</i-grid><f-grid>49.98</f-grid><p-ac>35</p-ac><temp>20.4</temp><e-today>0.0</e-today><t-today>1.5</t-today><e-total>4576.2</e-total><CO2>4562.47</CO2><t-total>14437.1</t-total><v-pv1>234.9</v-pv1><i-pv1>0.15</i-pv1><v-pv2>-</v-pv2><i-pv2>-</i-pv2><v-bus>361.2</v-bus></real_time_data>

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------------------------------------------------------------------------------
-- Version SAJ/00 20181223
--
-- Domoticz lua script to convert XML output directly read from SAJ_inverter
-- Reads the status based on the unique IP of the Inverter and passes it
-- to virtual sensor(s) in Domoticz
--
------------------------------------------------------------------------------
-- Source-script from Domoticz-forum, adapted by Toulon7559 (c)2018
------------------------------------------------------------------------------
-- Line 11: Start of Script
commandArray = {}
-- Line 13: Definition of XML Capture
function XML_Capture(cmd,flatten)
   local f = assert(io.popen(cmd, 'r'))
   local s = assert(f:read('*a'))
   f:close()
   if flatten  then
      s = string.gsub(s, '^%s+', '')
      s = string.gsub(s, '%s+$', '')
      s = string.gsub(s, '[\n\r]+', ' ')
   end
   return s
end
-- Line 25: Definition of XML dissect
function GetValueFromXML(XMLvalue)
   -- Extract the start/end-positions of the values within the substrings
   local XMLvalueLength=string.len(XMLvalue)+2
   local XMLvalueStartPos=string.find(XML_string,"<" .. XMLvalue .. ">")+XMLvalueLength
   local XMLvalueEndPos=string.find(XML_string,"</" .. XMLvalue .. ">")
   -- Get the value substring and convert it to a number
   local ReturnValue=tonumber(string.sub(XML_string,XMLvalueStartPos,XMLvalueEndPos-1))
   print(XMLvalue .. "=" .. ReturnValue)
   return ReturnValue
end

-- Line 37: Set debug to true to print to log file.
debug = true

-- Line 40: Define the idx of your virtual sensors - i.e. what you have called your sensors and their IDX numbers

PE_IDX = 446
-- VPV_IDX =
-- IAC_IDX =
-- Temp_IDX =
-- Hours_IDX =

-- Line 48: Define your SAJ Inverter device IP@

Device_IP = "192.168.0.109"

if debug == true then
        print("Reading values from: 'http://"..Device_IP.."/real_time_data.xml'")
end

-- Line 56: Read the XML data from the device

XML_string=XML_Capture("curl -s 'http://"..Device_IP.."/real_time_data.xml'",1)

valid = string.find(XML_string, "<real_time_data>")    -- check we are looking in the right place

    if debug == true then
        print(XML_string)
    end

    if valid == nil then
        print ("Bad XML status read - info NOT updated")
    else

-- Line 70: Choose in the XML_string the info-fields (substrings) based on their labels
-- Extract the values from the substrings and (if required) scale for upload to Domoticz

-- Line 73: read AC-power string
    power_actual = GetValueFromXML("p-ac")

-- Line 76: read temperature string
    temp = GetValueFromXML("temp")

-- Line 79: read PV-voltage string
    vpv1 =  GetValueFromXML("v-pv1")

-- Line 82: read PV-current string
    ipv1 =  GetValueFromXML("i-pv1")

-- Line 85: read day-energy string
    energy_day= GetValueFromXML("e-today") * 1000 -- correction for energy in Wh as required in Domoticz
    print("energy_day=" .. energy_day)

-- Line 89: read life-energy string
    energy_life= GetValueFromXML("e-total") * 1000 -- correction for energy in Wh as required in Domoticz
    print("energy_life=" .. energy_life)

-- Line 93: read hours_total string
    hours_total = GetValueFromXML("t-total")

-- Line 96: Upload Power & Energy to Virtual Device at Domoticz

    commandArray[1] = {['UpdateDevice'] = PE_IDX.."|0|"..power_actual..";"..energy_life}  -- send updated values to Domoticz

        if debug == true then
            print("power/energy returned = ".."'"..power_actual.."/"..energy_life.."'")
        end

    end

return commandArray

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local XMLvalueStartPos=string.find(XML_string,"<" .. XMLvalue .. ">") 

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local XMLvalueStartPos=string.find(XML_string,XMLvalue) 

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return {
	on = {
		timer = {'every minute' },
	},
	execute = function(dz)
	   dz.utils.dumpTable(dz.utils.fromXML('<real_time_data><state>Normal</state><v-grid>228.8</v-grid><i-grid>0.25</i-grid><f-grid>49.98</f-grid><p-ac>35</p-ac><temp>20.4</temp><e-today>0.0</e-today><t-today>1.5</t-today><e-total>4576.2</e-total><CO2>4562.47</CO2><t-total>14437.1</t-total><v-pv1>234.9</v-pv1><i-pv1>0.15</i-pv1><v-pv2>-</v-pv2><i-pv2>-</i-pv2><v-bus>361.2</v-bus></real_time_data>'))
	end
}