Rockwell Automation 1761-NET-ENIW MicroLogix Ethernet Interface (ENI) User Manual - Manual (Page 85)

Publication 1761-UM006E-EN-P - August 2005
1761-NET-ENIW Web Server Capabilities 7-9
Auto-Refresh of Data View Pages
By default, each Data View page has an update frequency of 10
seconds. You can enter a refresh time in seconds (5 to 9999) and post
this information to the ENIW by clicking anywhere within the frame.
Figure 7.5 Auto-refresh Field
ENIW Update Timer The ENIW provides a counter displaying the time, in seconds, since
the last PLC write to the ENIW. The counter resets to 0 whenever the
ENIW detects a valid write on one of the following nodes:
• 201 (Strings)
• 202 (Integers)
• 203 (Floating-points)
• 204 (Event Strings)
• 205 (Null String to Clear)
The counter displays a maximum value of 65,535 seconds. Once the
counter reaches that maximum, it displays a value of 65,535 until it
detects a valid write. The counter is viewable on all four of the ENIW’s
Data View pages.
Figure 7.6 ENIW Update Timer
TIP
To avoid excessive loading of the Ethernet network,
set the refresh rate as long as is practical for your
application and set the value to 9999 when not in
use.