Rockwell Automation 9220-WINTA ControlNet Traffic Analyzer Reference Manual - Manual (Page 42)

Publication 9220-052C-EN-P - August 2002
4-8 Triggers and Filters
Example 3: Fixed LPacket Using the UCMM Service List
When you want to use a predefined UCMM Service, you see the
following dialog box.
Filters Filtering refers to a selection used to allow frames that meet a specified
condition to pass from the network to the buffer, or from the buffer to the
display. For example, you may set up an input filter that will only let frames
with a source MAC ID of 10 to pass from the network to the collection
buffer. There are two filtering levels:
•
Pre-filter: determine which frames you will put into the buffer.
This is a sorting procedure used mainly for adding filters on the
destination of a frame.
•
Post-filter: determine which frames are going to be in the buffer,
i.e., which ones you want to see on the screen. This is the
second level of sorting, more precise and elaborate than the
pre-filter sort.
The UCMM Service
number is 0x83.
The LPacket Data Offset
and Link Data values are
forced to match the
selected UCMM Service.
A predefined UCMM Service is selected.