Rockwell Automation 1757-SWKIT5000 ProcessLogix R500.1 Installation and Upgrade Guide - Manual (Page 265)

Publication 1757-IN500A-EN-P - September 2002
Performance and Capacity Specifications 11-25
FIM Display-related Performance Limits
The following table gives performance guidelines for the display of tabs on the
FF Block Detail Display Form, which obtains its data through the FIM and H1
links:
Assumptions:
• At least 50% of the link schedule must be available and usable for
client-server transactions.
• No more than 40 non-viewed-contained parameters appear on a display
tab at once. (This is provided by FLM.)
• No more than one new tab is called up for devices on the same link
within 10 seconds of each other.
• No more than four tabs are being refreshed from device on the same
link simultaneously.
• The 80%-10%-10% specification is intended to allow that, in
consideration of the many factors that influence link throughput, over
the long-term (say, 1000 call-ups), 80% or more will meet or exceed the
average number, 90% (additional 10%) or more will meet or exceed the
slow spec, and 100% (additional 10%) or more will meet or exceed the
worst spec.
Table 11.V FF Block Detail Display Form Performance (per tab,
≤40 parameters)
Performance
Distribution Call-up rate, sec
100% Contained in
View Lists
Call-up rate, sec
0% Contained in
View Lists
Refresh rate, sec
100% Contained
in View Lists
Refresh rate, sec
0% Contained in
View Lists
80% (average) 2 8 2 10
10% (slow) 4 16 5 16
10% (worst) 8 20 10 20