ABB XIO-08 User Manual page 119

Default User-
port configurable
65535 No
9696 No
5353 No
IMPORTANT NOTE: The TotalFlow/TCP and Modbus protocols are unsecured protocols, as such the
intended application should be assessed to ensure that these protocols are suitable before
implementation.
IMPORTANT NOTE: For connections with user-configurable ports, use the default value or assign a
different port number from the range of 1024 to 65534. Connections using non-default TCP ports are
handled by additional Totalflow/TCP communication or Modbus TCP applications configured with
different TCP ports. For example, the figure below shows an additional Totalflow/TCP application
(named ControlGroup) with a different TCP port (10001).
Figure 8-1: Totalflow/TCP application instance with non-default TCP port
IMPORTANT NOTE: TCP port numbers from 0 to 1023 are universally reserved for well-known
ports. Never use these port numbers.
Port can Protocol
be using the
closed port
Yes Device Loader
TCP
Yes SSH/TCP
Yes mDNS/UDP
Description
Assigned to the device loader connections for
device software update.
PCCU requests this type of connection.
Assigned to secure shell (SSH/SFTP) connections.
Third-party SSH/SFTP clients request these
connections.
Used by Auto Discovery service to detect Totalflow
services present on the network
XIO USER MANUAL | 2106424MNAA | 119