B&B Electronics ESP904 - Manual - Manual (Page 43)

Server Properties Configuration
Manual Documentation Number: ESP904-4513m Chapter 5 33
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Force Transmit
This field allows the user to set a maximum time limit between transmissions
of data. The value set in this field multiplied by 100 ms determines the Force
Transmit time. When the elapsed time reaches the time configured in this
field, the TCP/IP protocol will pack the data currently in the serial buffer into
a packet and send it out the Ethernet port.
Port Status
This field indicates whether a serial port is connected via the Serial Server to
a virtual COM port of a device on the network.
TCP/UDP Port
This sets the port number for connection. The default port number is 4000 ,
4001 , 4002 , and 4003 for serial ports 1, 2, 3, and 4 respectively.
In all modes of operation, Direct IP or Virtual COM , the port number set in
the ESP904 menu must match the Virtual COM or socket software port
settings.
N N o o t t e e : :
Example: The Virtual COM default setting is TCP/UDP Port 4000. If the port #
property is changed to 4001, the virtual COM port will have to be changed to
4001. The hardware settings can be changed from the ESP Manager or
Console Configuration Menu. The Virtual COM port setting also can be
changed within the Device Manager of the computer on which it is installed.
Serial Port Mode
Serial Port Mode allows configuration of the serial server for the following
modes of operation:

Console – When this mode is selected and the server is updated, a PC
running a communications program such as HyperTerminal can
communicate with the
Serial Server via the Console Mode serial port
(the serial Port on ESP901 or Port 1 on ESP902), displaying the Server
Properties screen and allowing configuration of the server and its ports.

Upgrade – When this mode is selected and the server is updated,
firmware can be uploaded into the Serial Server via the Console Mode
serial port or a virtual COM port mapped to the number of the Console
Mode serial port.

Default – When this mode is selected and the server is updated, it will
revert the server to its default configuration.