Greetings,
For the IQ-F series setup ports can be configured for TCP/IP or UDP communication. While TCP/IP is reliable, it is less efficient and requires multiple ports for remote network communication. UDP is recommended wherever possible for better performance. After changing network parameters on the PLC must perform a power cycle for the changes to take effect.
Please refer to the iQ-F Series PLC setup guide here:
<https://support.ptc.com/help/kepware/drivers/en/index.html#page/kepware/drivers/MITSUBISHIETHERNET/iQ_F_Series_PLC_Setup.html#>
For further details of IQ-F series setup refer to the manufacturer's documentation for current and official instructions.
Also, please verify the different UDP port numbers on the PLC side and also check the Network and Station ID. Please keep us informed about your progress
Regards,
Mohit