Rockwell Automation 1757-SWKIT5100 ProcessLogix R510.0 Installation and Upgrade Guide - Manual (Page 264)

Publication 1757-IN510A-EN-P - October 2003
11-24 Performance and Capacity Specifications
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.
(3) Bursts are up to one minute apart.
(4) These numbers may be further limited by other restrictions noted in this document.
(5) This assumes that the FF device supports AlterEventConditionMonitoring, the ability to suppress Update Events. Otherwise reduce by factor of 2.
(6) All parameters must be in one view list per device or published.
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