Communication device, communication system, and method for synchronized transmission of telegrams

A communication device for synchronized transmission of telegrams, comprising:

• at least two application devices, each one adapted to provide at least one telegram, wherein said at least two telegrams are to be sent in synchronized manner;
• a transmission device;
• and
• a coordination device adapted to forward, in predetermined manner, the telegrams provided by the application devices to the transmission device, and to prompt the transmission device to transmit the telegrams to be sent;
• wherein the transmission device comprises a time stamp unit and a memory unit;
• wherein the time stamp unit is adapted to ascertain a current transmission time for each transmitted telegram which was provided by one of the at least two application devices;
• wherein the memory unit is adapted to store only the current transmission time ascertained by the time stamp unit;
• wherein the coordination device is adapted to prompt the transmission device to transmit a telegram to be sent and to ascertain and store the transmission time using the time stamp unit;
• and
• wherein the coordination device is further adapted to read out the current transmission time from the memory unit and to associate it with the corresponding telegram, and to prompt the transmission device to transmit a further telegram to be sent only when either the current transmission time has been read out from the memory unit by the coordination device or if the coordination device failed to read out the current transmission time from the memory unit.