Tool
Here are is a Networktool (PortScan.exe) for scanning from Ports. This will not detekted from Security Software (Antivirus)
follow Networkports are used from custo diagnostic:
Networkmonitoring
TCP 51394 bis 51404
CodeMeter
TCP 22350
kybe Online-Monitoring
TCP 4163
ec1000 / er2000 (Daum-Ergometer)
TCP 51955
e5000
TCP 2100