We have an ethernet communications protocol with different commands for sending and receiving events such as keys or digital inputs. The communication with the network controller is established through telegrams that use the TCP/IP protocol. These telegrams have a beginning, a body (where the relevant data are placed) and an end.

The types of messages supported by the displays are listed below and an example of a “4” type message, which is the most commonly used, is presented. In the attached Pdf. the structures of the messages are explained in detail.