Apologies as new to gcode. I have a E3D Toolchanger with Duet Wifi. When I look at the config.g file it has the line "M555 P2 ; Set firmware compatibility to look like Marlin" I understand that I am running RepRap firmware so as i set up my gcodes and look at their functionality/compatibility from wiki I should be looking at RepRap or Marlin (I assume RepRap)
It doesn't matter. That command only affects the response to a few commands, and only when they are received from either USB, a serial port, or Telnet.
