Terminal module, head module, and system for collecting data from an automation system

A system for collecting data from an automated plant, wherein present in the plant is at least one field device that is connected for communication and for exchanging telegrams with a superordinate unit by means of a communication loop using a first protocol, the system comprising:

• a hat rail;
• a terminal module, including:
• a connection region to which a communication loop is connectable, via which telegrams can be transmitted using the first protocol;
• contacts that are embodied for connecting to another terminal module;
• and
• an electronics module that is embodied to receive via the connection region the telegrams that are transmitted by the communication loop, to convert the telegrams received from the communication loop into a second protocol, and to output the converted telegrams via the contacts;
• wherein the terminal module is mounted on the hat rail and is embodied to monitor telegrams transmitted from the at least one field device to the superordinate unit via the communication loop, to convert monitored telegrams into the second protocol, and to output converted telegrams;
• and
• a head module, including:
• contacts that are embodied for connecting to contacts of the terminal module;
• a first network interface that is embodied for connecting to a wired or a wireless communication network that uses a third protocol;
• a connection for an energy supply unit;
• an energy distribution unit that is connected with the connection for the energy supply unit and with the contacts of the head module, wherein the energy distribution unit is embodied to supply the terminal module with electrical energy via the contacts of the head module and the contacts of the terminal module;
• and
• an electronics module that is embodied to receive via the contacts telegrams transmitted from the terminal module, wherein the telegrams have the second protocol and the electronics module is further embodied to convert the telegrams into the third protocol and to output the converted telegrams via the first network interface;
• wherein the head module is mounted on the hat rail, and wherein the terminal module is connected by means of its contacts with the contacts of the head module.