B&B Electronics ESP901E Manual De Usuario

Descargar
Página de 47
 
 
Server Properties Configuration 
Manual Documentation Number: ESP901-902-3704 
Chapter 5 
33 
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 
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.