I need to Open an IP device with 24 sub ports.
I tried ADDCONNECTION, OPEN, etc. I cannot get these commands to
work.

Need to open an IP address 143.xxx.xxx.xxx sub port 2300 read_only.

If this is possible, I need to open another port on the same device,
but port 2400.
Then probably use an Event when data is available on either port....
TIA