We are the creator of www.thetaooffieldbus.com
After more than four years it is the reference point of EtherCAT analysis and debug.
The plugin is available for different OS and it is easily integrated inside the wireshark ide.
They talk about us:
There is also a link to an EtherCAT tutorial at the end of the above link that uses the developed tools to explain, in quite a level of detail the “workings” of this protocol by explaining how to identify lost frames.....
More than 14000 download!!
The most famous and used plugin wordwide.
Many tutorials to dissect and analyze the EtherCAT frames.
Filled of suggestions and tricks to personalize the debug and to became a winner in fieldbuses context.