PROFINET CBA (PN-CBA)
The PROFINET CBA (PN-CBA) protocol is a field bus protocol related to platform independent data exchange.
The connection management part is using DCOM as its underlying protocol.
The acyclic data transfer (transfer of data if value changed) also uses the DCOM protocol.
The cyclic data transfer uses the "lightweight" PROFINET/RT protocol.
XXX - add a brief description of PROFINET CBA history
XXX - Add example traffic here (as plain text or Wireshark screenshot).
The PN-CBA dissector is fully functional.
There are no PN-CBA specific preference settings.
Example capture file
XXX - Add a simple example capture file to the SampleCaptures page and link from here. Keep it short, it's also a good idea to gzip it to make it even smaller, as Wireshark can open gzipped files automatically.
PN-CBA splits into several DCOM interfaces, so there's no single PN-CBA filter available. A complete list of PN-CBA display filter fields can be found in the display filter reference, look for all protocols (DCOM interfaces) beginning with the cba_ prefix there.
For this reason, theres no simple PN-CBA filter. However, you can filter on the underlying DCOM protocol.
Show only the DCOM (PN-CBA) based traffic:
You cannot directly filter PN-CBA protocols while capturing.
the PROFINET CBA Architecture Description and Specification can be found at http://www.profibus.com -> downloads -> specifications and standards
- add link where to find additional info on the web about PN-CBA