The Cyclic (implicit) data exchanges are managed by the chosen Industrial Ethernet scanner.
To perform data exchanges on demand, you must use explicit messages.
Explicit messages are initiated by the application with function blocks:
For EtherNet/IP devices, you can use the function blocks of the EtherNet/IP Explicit Messaging library.
For EtherNet/IP devices, you can also use the generic EipDataExch function block of the EtherNet/IP Scanner library.