ABB Remote I/O RIO600, Installation And Commissioning Manual, Page: 289 / 312

Windows XP SP2 or later contains a built-in firewall.
Table 186: TCP/IP and UDP ports
Protocol TCP/UDP port
FTP file transfer protocol 21, 20
Network time management protocol 123
HTTP 80
Modbus TCP 502
The FTP timeout period in RIO600 is 100 ms.
3. Check the network if the communication issue persists.
All devices in the same network should have unique MAC addresses and IP
addresses.
4. If an address conflict is detected, separate RIO600 from the network and refresh
the PC's ARP table.
4.1. In the command prompt, type
arp-d .
4.2. Press ENTER to flush the ARP table and establish the communication to
RIO600.
RIO600 supports only one user credential for FTP with the user
name Administrator.
9.3 Restoring factory settings
The LECM board has a push button to restore RIO600 to factory settings. The
configuration files in RIO600 are deleted and the communication parameters are
changed to the default values.
1. Power off the rack before removing the modules from the stack.
2. Remove the I/O modules from the stack to access the factory reset button on the
LECM board.
If the plastic part cutout is not open, remove the cutout to display the push button.
1MRS757488 H
Section 9
Troubleshooting
RIO600 281
Installation and Commissioning Manual