Get-SCSMClassInstance -Class $irClass | Where {$_.Id -eq "$Incident"}

param ($Incidents)

$Incidents = $Incidents.Split(",")

$InstallConfig = 'HKLM:\SOFTWARE\Microsoft\System Center\2010\Service Manager\Setup'
if(Test-Path $InstallConfig)
{
$SCSMModule = (Get-ItemProperty -Path $InstallConfig -Name InstallDirectory).InstallDirectory + "Powershell\System.Center.Service.Manager.psd1"
Import-Module -Name $SCSMModule -Global
$SCSMDWModule = (Get-ItemProperty -Path $InstallConfig -Name InstallDirectory).InstallDirectory + "Microsoft.EnterpriseManagement.Warehouse.Cmdlets.psd1"
Import-Module -Name $SCSMDWModule -Global
}
else
{
throw "ERROR: Could not locate one, or both, Service Manager PowerShell modules."
}

$SCSMConfig = 'HKCU:\Software\Microsoft\System Center\2010\Service Manager\Console\User Settings'
$SCSMMS = (Get-ItemProperty -Path $SCSMConfig).SDKServiceMachine
New-SCManagementGroupConnection -ComputerName $SCSMMS

$irClass = Get-SCSMClass -DisplayName "Incident"
$relClass = Get-SCSMRelationshipClass -Name System.WorkItem.TroubleTicketHasActionLog -ComputerName $SCSMMS

ForEach ($Incident in $Incidents) {
  Write-Host $Incident
  $IR = Get-SCSMClassInstance -Class $irClass | Where {$_.Id -eq "$Incident"}
  $relObjects = Get-SCSMRelatedObject -SMObject $IR -Relationship $relClass -ComputerName $SCSMMS
  ForEach ($relObject in $relObjects) {
    $Comments = $relObject.UserComment
    $CsvDetails = @{
      Comments = $Comments
      Description = $IR.Description
      Title = $IR.Title
      ID = $IR.Id
    }    
    $objList = @()
    $objList += New-Object PSObject -Property $CsvDetails
  }
  $objList | Export-Csv -Path "c:\temp\SCSM - IR Comments\Test.csv" -NoType -Append
}