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4.3.5 Configuration (continued)
F) Terminal Server
TCP/UDP*: The iServer supports TCP and UDP protocols (default is TCP).
If UDP is selected, it can be configured either for Broadcast UDP or Directed UDP.
In case of Broadcast UDP, the iServer will transmit the data to every node on the
network. This can be accomplished if the Remote IP Address is set to
255.255.255.255. The Broadcast UDP is a practical solution when one iServer needs
to communicate with multiple nodes over the network.
In the case of Directed UDP, the iServer will transmit the data to a specific node on
the network. This can be accomplished if the Remote IP Address is set to the IP
address of that specific node.
Server Type: Continuous mode sends the temperature and humidity to the Ethernet,
every two seconds. It is mainly used to send readings to a remote display.
Command mode (default) needs a command to query the iServer to send the
reponse back to querying device.
Forward CR: Forward CR can be enabled and disabled.
If enabled the iServer will forward a <CR> along with the data to a network host.
Number of Connections: The range is from 0 to 5. If 0 is selected, the Terminal
Server feature is disabled. This means that no network connection can be made to
the sensor connected to the iServer.
If 1 is selected, only one network connection can be made to the iServer’s.
Any number more than 1 would allow that number of network hosts to read from the
iServer simultaneously (default is 5).
Port: Port 2000 is the default TCP port for the iServer’s port to which the sensors are
connected.
Ports 1000 (used for HTTPget, refer to Section 4.5), 2002, 2003, and 2004 are
reserved for internal use.
Terminal Server usually describes a device that exchanges data between
Ethernet/TCPIP networks and RS-232/RS-485 systems.
With this iServer, the data is obtained digitally from the sensor (irrelevant to
RS-232 or RS-485 interface) and can be accessed from anywhere on the
network.
A computer program, such as the Mail Notifier, OPC Server, iLog, iFlash or
HTTPget can send TCP requests and obtain readings using the Terminal
Server feature.
Time Stamp
: If checked, the Humidity/Temperature/Dewpoint values will be stamped
with time and date using Port 1000 (HTTPget program must be used, see Section
4.5.1).
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