B&B Electronics Vlinx Serial Servers ESP902E - Manual (Page 22)

Server Properties Configuration
Manual Documentation Number: ESP901-902-3704 Chapter 5 33
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address, net mask, and gateway to the Serial Server . If a DHCP server
is not available on the network the Serial Server will time out after 10
seconds and the default values will remain. When DHCP is enabled, the
IP Address, Netmask and Gateway fields become inaccessible and
cannot be changed by the user.
N N o o t t e e : :
A dynamic address assigned by the DHCP server may change if the
server loses the Ethernet connection or power is removed. The host
(client) communication software requests a connection to the specific
IP address of the serial server. If the DHCP reassigns a different IP
address the software will not be able to communicate with the
hardware. Therefore, using a static IP address is recommended.
IP Address
Software or hardware attempting to access the Serial Server via the
network must know the IP Address of the server. A static IP address is
retained and remains the same each time the server is powered up or
starts/restarts. The default IP address of the
Serial Server is printed on
a label on its bottom cover. Entering an appropriate address in the IP
Address field and updating the server will change the server’s IP
address. The network administrator can assign/establish the static
address or group of addresses to be used.
The IP Address of the Serial Server can be confirmed using the DOS
Ping command.
N N o o t t e e : :
To use Ping to check for communications:
- Access a DOS window (in XP click Start, then Run)
- At run prompt enter: CMD
- In the DOS window enter: Ping xxx.xxx.xxx.xxx (IP address for the
server to be confirmed)
- The command will return the Ping results indicating 4 replies
Figure 31. Pinging using the DOS command window
Server Properties Configuration
34 Chapter 5 Manual Documentation Number: ESP901-902-3704
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com
B&B Electronics Ltd – Westlink Commercial Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com
Netmask
The default LAN netmask is configured for a Class C address. The user
may change this. Default is 255.255.255.0
Gateway
The Gateway IP address allows users to access the Serial Server from
outside the LAN.
MAC Address
The MAC address is fixed and cannot be changed. It is assigned in the
factory. Every Ethernet device manufactured has it own unique MAC
address.
Version & Date
The currently loaded version of the firmware, and when it was released,
is shown here.
Link Status
Link status automatically displays the type of Ethernet connection. It
will either display 10BaseT or 100BaseTX in full duplex or half
duplex. This will depend on the LAN, switches, hubs used in the LAN
topology.
Server Serial Port
This field indicates the number of the port for with Serial Server
properties are currently being displayed. Changing the number in this
field will cause all the other fields to display the properties for the
specified port. Note, however, that before changing ports, any changes
to properties must be
Updated (Saved) or the Serial Server will not
retain them.
Baud Rate
The serial port baud rate on the Serial Server must match the serial
baud rate of the connected device unless using Virtual COM Mode. In
Virtual COM Mode the software program will establish serial settings.
Data/Parity/Stop
Set this to match the data format used by the serial device connected
when Virtual COM Mode is not being used.