R/W access to the http
directory; read-only to
the other directories.
Table 5 - PCOWeb passwords
The password can be modified by accessing the administrator page. The password recalled with
the “Pushbutton” function will not be modified and must not be confused with the passwords
that are modifiable by the user. This page can also be used to set the access restrictions for each
of the various directories in the http tree. Consequently, connecting via FTP and logging in as
the web administrator, as follows will access the pCOWeb user file system
• username= httpadmin;
• password= fhttpadmin (note “f” as in “factory” as the first letter).
The customized pages should be saved in the following directory: /usr/local/root/flash/http.
Note: The pages downloaded to the pCOWeb must have the correct properties and be
able to be displayed with a browser; setting these attributes correctly via FTP is quite
difficult, and consequently the “auto-set attributes” function is available in the
administrator pages. To activate this function, simply click the “Adjust HTML pages
attributes” link; it is recommended to do this whenever modifying one or more HTML
pages.
8.3.8 CGI script
CGI scripts can be written in bash language or compiled languages. These must have the .cgi
extension and must reside in the http/usr-cgi directory. As for the HTML pages, these files must
also have the properties correctly set and enabled. IMPORTANT: It is recommended to click on
the “Adjust HTML pages attributes” link whenever modifying one or more .cgi scripts.
8.3.9 SNMP
PCOWeb is able to communicate using the SNMP protocol (v1 & v2c). It therefore acts as a
gateway between the CAREL proprietary protocol and SNMP. The information available via
SNMP relates to all the data sent to the supervisors by the application loaded on the controller.
PCOWeb manages some standard traps and allows a trap to be defined for each digital variable
on the controller. The parameters relating to the management of the SNMP protocol can be set
using the administrator configuration pages.
8.3.10 BACNET
PCOWeb is able to communicate using the BACnet protocol over Ethernet:
• ISO8802-2 over 8802-3;
• BACnet/IP.
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