Abstract: A data communication gateway for a construction machine communication system, including a first, a second, and a third data interface arranged to be mutually interconnected. The first interface is arranged to be connected to a private network of a construction machine, the second interface is arranged to be connected to an attachment network, and the third interface is arranged to be connected to an auxiliary network. A message format table configured in the gateway ECU is indicative of a message formatting relative to a standard message format of the construction machine communication system. The gateway ECU is arranged to receive a message on a source interface out of the first, second, and third interfaces, translate a data content of the message based on the message format table, and forward a message comprising the translated data content onto a destination interface out of the first, second, and third interfaces.