$ErrorActionPreference = 'Continue'
Add-Type -Path 'C:\Program Files (x86)\Beckhoff\TwinCAT\3.1\Components\Base\v170\TwinCAT.Ads.dll'
$c = New-Object TwinCAT.Ads.TcAdsClient
$c.Connect('169.254.176.217.1.1', 10000)
Write-Host "before: $($c.ReadState().AdsState)"
try {
    $c.WriteControl((New-Object TwinCAT.Ads.StateInfo([TwinCAT.Ads.AdsState]::Run, 0)))
    Write-Host "WriteControl Run sent"
} catch { Write-Host "err: $_" }
$c.Dispose()
Start-Sleep 10
$c2 = New-Object TwinCAT.Ads.TcAdsClient
$c2.Connect('169.254.176.217.1.1', 10000)
Write-Host "after: $($c2.ReadState().AdsState)"
$c2.Dispose()