[PRTG] Get Limits

$prtghost="<your-prtg-host>"
$username="<your-prtg-user>";
$passhash="<your-prtg-users-passhash>" # can be obtained from the accoutn configuration
$Sensors = ((Invoke-WebRequest -URI "http://$($prtghost)/api/table.json?content=sensors&output=json&columns=objid,device,sensor&username=$($username)&passhash=$($passhash)").Content | ConvertFrom-Json)
$Devices = ((Invoke-WebRequest -URI "http://$($prtghost)/api/table.json?content=devices&output=json&columns=objid,device&username=$($username)&passhash=$($passhash)").Content | ConvertFrom-Json)

Write-Output "sep=;"
Write-Output "DeviceID;Device;Sensor;SensorID;Channel;ChannelID;LowerWarningLimit;LowerErrorLimit;UpperWarningLimit;UpperErrorLimit"
Foreach($Device in $Devices.devices){

    $Sensors = ((Invoke-WebRequest -URI "http://$($prtghost)/api/table.json?content=sensors&output=json&id=$($Device.objid)&columns=objid,device,sensor&username=$($username)&passhash=$($passhash)").Content | ConvertFrom-Json)

    Foreach($Sensor in $Sensors.sensors){

        $Channels = ((Invoke-WebRequest -URI "http://$($prtghost)/api/table.json?content=channels&output=json&columns=name,lastvalue_,objid&id=$($sensor.objid)&username=$($username)&passhash=$($passhash)").Content | ConvertFrom-Json);

        Foreach($Channel in $Channels.channels){
            $ChannelSettings = (Invoke-WebRequest -Uri "http://$($prtghost)/controls/channeledit.htm?_hjax=true&id=$($Sensor.objid)&username=$($username)&passhash=$($passhash)&channel=$($Channel.objid)");
            if(($channel.objid -eq -4) -or $Channel.name -eq "Execution Time"){ continue;}
            $LowerWarningLimit = $ChannelSettings.InputFields.FindById("limitminwarning_$($Channel.objid)").value
            $LowerErrorLimit = $ChannelSettings.InputFields.FindById("limitminerror_$($Channel.objid)").value
            $UpperWarningLimit = $ChannelSettings.InputFields.FindById("limitmaxwarning_$($Channel.objid)").value
            $UpperErrorLimit = $ChannelSettings.InputFields.FindById("limitmaxerror_$($Channel.objid)").value

            Write-Output ("{0};{1};{2};{3};{4};{5};{6};{7};{8};{9}" -f $Device.device,$Device.objid,$Sensor.sensor,$Sensor.objid,$Channel.name,$Channel.objid,$LowerWarningLimit,$LowerErrorLimit,$UpperWarningLimit,$UpperErrorLimit)
        }
    }
}