Configuring with Web Based Management   
6.6 "Interfaces" menu 
  SCALANCE W780/W740 to IEEE 802.11n Web Based Management 
326  Configuration Manual, 08/2018, C79000-G8976-C267-13 
10.On the "Remote Interfaces" tab, the host and the interfaces on which the function 
"Remote Capture" was previously enabled are displayed. 
11.Select the interface and click the "OK" button. 
12.To start the recording click "Start". You can obtain further information about handling the 
program in Wireshark. 
If you analyze several interfaces you can use a Wireshark instance for each interface.