Advantech EKI-1500-CE Series, User Manual

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EKI-1500-CE Series User Manual 40
4.3.3 USDG UDP Server/Client mode
The USDG UDP mode is primarily used for the broadcasting of messages over a net-
work. In UDP server mode, data is transmitted from the Host connected to the EKI-
1500-CE Series USDG UDP Port (Default Port 5300). In the default UDP client
mode, EKI-1500-CE Series device servers simultaneously transmits UDP messages
to a maximum of 16 peers.
USDG Data mode supports Data Idle Timeout, Data Listen Port, and Command Lis-
ten Port parameters.
4.3.3.1 Data Idle Timeout
The default is 60 seconds. If you want to keep connection continually, you can dias-
ble the Data Idle Timeout. Data idle Time is the time period for which the device waits
for data. If the EKI-1500-CE Series does not receive data during established idle
time, the EKI-1500-CE Series will disconnect temporarily. When the data comes in, it
will reconnect automatically. Users do not need to reconnect.
4.3.3.2 Data Listen Port
The TCP/UDP port number represents the source port number, and the number is
used to identify the channel for remote initiating connections. The port range is 1024-
65533. If an unknown caller wants to connect to the system and request services,
they must define the TCP/UDP port to carry a long-term conversation.
Each node on a TCP/IP network has an IP address, and each IP address can allow
connection on one or more TCP port. The well-known TCP ports are those that have
been defined; for example, port 23 is used for Telnet connections. There are also
custom sockets that users and developers define for their specific needs. The default
TCP/UDP port of the EKI-1500-CE Series Port1 is 5300, Port2 is 5301, etc. Users
can adjust them according to preference or application. Each port has its own data
listen port to accept the connection requests of other network device. The data listen
port cannot be set to the same value. You can transmit/receive data to/from devices
via the data listen port.
4.3.3.3 Command Listen Port
Each port has its own command listen port to accept connection requests from other
network devices, so the command listen port cannot be set to the same value. The
Command Listen Port is different from the Data Listen port. <Default Port is 5400>