”smsC hat.txt” was not created after app runProc modemDemo1 send --exe = send – 1234567“ Sim”

what is the IP address on ethernet interface on FX30?
What is the IP address on ethernet interface on PC?
Can they ping each other?

BTW, are you using ethernet IOT card or the ethernet port is default already on the device?

I saw that some one says it is not working with FX30+ ethernet IOT card: