Viewing The Rx7I Plc Web - GE RX3i User Manual

Chapter 11. RX7i PLC Monitoring Via the Web
11.6 Viewing the RX7i PLC Web Pages
Each web browser (HTTP) instance (i.e., each browse window) requires at least two TCP connections and each
FTP session requires two TCP connections to the PLC. The maximum number of web browser connections and
FTP connections at the Ethernet interface at any one time are separately configurable from 0 to 16 (a value of 0
means that the web server or FTP capability is disabled). The total number of configured web browser
connections plus FTP connections is limited to 16 connections; once the number of browser/FTP connections
reaches the configurable limit, any new browser or FTP connection requests will fail.
The number of Web Server and FTP connections is configurable via the Programmer. The Programmer
configuration details are described in the Programmer Help utility.
When the PLC is unconfigured, the user can change the number of web server (HTTP) connections and FTP
connections with the following Station Manager commands, respectively:
CHSOSW web_max_conn <number from 0-16>
CHSOSW ftp_max_conn <number from 0-16>
As noted in the Ethernet Configuration section, the sum of web server connections plus FTP connections must
not exceed 16 connections.
For example:
= CHSOSW web_max_conn 6
= CHSOSW ftp_max_conn 4
Note: The CHSOSW commands are not available if the PLC has received a valid configuration
from the Programmer.
206 PACSystems* RX7i & RX3i TCP/IP Ethernet Communications User Manual GFK-2224Q