PROFINET Real-Time Protocol (PN-RT)

Profinet RT is one of the protocols of the Profinet family. It used for real time cyclic data transfer with Industrial Programable Logic Controllers. Communications using PN-RT bypass the standard TCP/IP interface provided by Profinet to provide high speed communications of up to 12MBd. Specifically it was designed for time critical discrete input/output and message transfer.


The PN-RT protocol was released with Profinet specification v2.2 in June 2007.

Protocol dependencies

Example traffic

XXX - Add example traffic here (as plain text or Wireshark screenshot).


The PN-RT dissector is fully functional.

Preference Settings

(XXX add links to preference settings affecting how PN-RT is dissected).

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.

Display Filter

A complete list of PN-RT display filter fields can be found in the display filter reference

Capture Filter


PROFINET/RT (last edited 2013-09-16 12:44:20 by MattyThorne)