Modbus TCP Client PORT number

PLCnext Engineer
1

Hello, Due to the fact I have problem with Modbus TCP Client communication with a few devices. PLCnext is the client. I have questions:
1. What port number is assigned to Modbus TCP communiction in in PLCnext AXC F 2152.

                              1. Is that number of Port configurable?
2

Hello,
If you are using official Modbus TCP library from PLCnext Store then you can configure port numbers in MB_TCP_Client FB.
image.png

3

OK, but can I find somewhere a list of availlable ports for PLCNext?