pCOWeb
Version 1.0 August 2007
4
CONNECTION TO AN INTERNAL NETWORK
In the example shown in Figure 1.a above pCOWeb is connected to an internal network. If suitably configured,
the personal computers in the internal network can communicate with pCOWeb using one of the various
standard network languages included on pCOWeb.
The server connects the external network or “Internet” to the internal network or “Intranet”.
Usually in a network, the exchange of data between Internet-Intranet is only enabled for some devices and only
for some types of communication.These decisions are defined by the network administrator.
pCOWeb features (Figure 1.b) a button (PUSHBUTTON) and two indicator lights (STATUS LED and
ETHERNET LED)
Functions of the button
•
When starting up the pCOWeb, this is used to select, for network communication, whether to use the
factory parameters or the user parameters;
•
In normal operation, reboots pCOWeb without needing to disconnect the power supply
Meaning of the LEDs
•
Status LED: displays information on the communication status between pCOWeb and Pco and must
normally be green and flash around 3 times a second; in special circumstances it displays the
operation of service activities, such as the restart of the internal program on the pCOWeb, the remote
updating of the program, or others. See the table on the next page.
USER INTERFACE: BUTTON and LEDS
