Powershell sensor script to gather to gather data from SAJ solar inverter

hello, I decided to write and share with you a script for downloading data from the SAJ inverter and presenting the data in PRTG. The original inverter tracking software is very limited and as I have PRTG instance at home on my ESX, I decided to use it for these purposes. Technically this is a advanced server which generates xml. It generates 35 channels. All data came from csv which is loaded from device interface. All you need to change ip to your.

function Get-Data {
   param(
     [string]$DeviceIP
   ) 
 
	[int]$LocalDevicePort = "80"
    $url = "http://"+ $deviceIP +"/status/status.php"
    $test = test-netconnection -ComputerName $deviceIP -Port $LocalDevicePort
    if ($test) {
        $method = "GET"
        $WebResponse = Invoke-WebRequest -Uri $url -Method $method
        $Content = $WebResponse.Content
        Return $content
        } else {
        Write-Output "host not responding"
        }#end if
    }

function Get-Table {
   param(
     [string]$DataString
   ) 

$statusfieldnames = @('Statistics', 'Total_Generated', 'Total_Running Time', 'Today_Generated', 'Today_Running_Time', 'PV1_Voltage', 'PV1_Current', 'PV2_Voltage', 'PV2_Current', 'PV3_Voltage', 'PV3_Current', 'PV1_StrCurr1', 'PV1_StrCurr2', 'PV1_StrCurr3', 'PV1_StrCurr4', 'PV2_StrCurr1', 'PV2_StrCurr2', 'PV2_StrCurr3', 'PV2_StrCurr4', 'PV3_StrCurr1', 'PV3_StrCurr2', 'PV3_StrCurr3', 'PV3_StrCurr4', 'Grid-connected_Power', 'Grid-connected_Frequency', 'Line1_Voltage', 'Line1_Current', 'Line2_Voltage', 'Line2_Current', 'Line3_Voltage', 'Line3_Current', 'Bus_Voltage', 'Device_Temperature', 'CO2emission_Reduction', 'Other_Status')
$unitsfieldnames  = @(        'na',             'kWh',                  'h',             'kWh',                  'h',           'V',           'A',           'V',           'A',           'V',           'A',            'V',            'A',            'A',            'A',            'A',            'A',            'A',            'A',            'A',            'A',            'A',            'A',                    'W',                       'Hz',             'V',             'A',             'V',             'A',             'V',             'A',           'V',                  'C',                    'Kg',           'na')
$divisorfields    = @(         '1',             '100',                 '10',             '100',                 '10',          '10',         '100',          '10',         '100',           '1',           '1',            '1',            '1',            '1',            '1',            '1',            '1',            '1',            '1',            '1',            '1',            '1',            '1',                    '1',                      '100',            '10',           '100',            '10',           '100',            '10',           '100',          '10',                 '10',                    '10',            '1')


$ValueArray = $DataString.split(',')

if (($statusfieldnames.count) -eq ($ValueArray.count)) {$max = $statusfieldnames.count}
$result = for ($i = 0; $i -lt $max; $i++) {
    [PSCustomObject]@{
        channel = $statusfieldnames[$i]
        value   = ([string]([double]($ValueArray[$i]) / [int]($divisorfields[$i]) )).replace(',','.')       
        unit    = $unitsfieldnames[$i]
        }
    }
Return $result
}

function Get-XML {
   param(
   $Table
   ) 

$prtg = '<?xml version="1.0" encoding="Windows-1252" ?> 
<prtg>'

#$prtg = '<prtg>'

foreach ($row in $Table) { 
    $channel = $row.channel
    $value = $row.value
    $unit = $row.unit
    
    if ($value.Contains('.')) {$float = 1} else {$float = 0}
    if ($channel) {
        $prtg +="
            <result> 
                <channel>$channel</channel>
                <value>$value</value>
                <unit>Custom</unit>
                <customUnit>$unit</customUnit>
                <float>$float</float>
            </result>"
        }
    } 

$prtg +="</prtg>" 
return $prtg 
}

$IP = "[PUT YOUR IP HERE]"
$data  = Get-Data  -DeviceIP   $IP
$table = Get-Table -DataString $data 
[xml]$xml = New-Object System.Xml.XmlDocument
[xml]$xml = Get-XML -Table $table

$xml.InnerXml